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Annotation of coherent/f/tmp/inst2/build.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * build.c
        !             3:  * 07/01/93    COH 386 release
        !             4:  *
        !             5:  * Build (install) COHERENT on a system, part 1.
        !             6:  * The second part of the install procedure is in install.c.
        !             7:  * Uses common routines in build0.c,
        !             8:  * serial number checking in numtab.c and serialno.c.
        !             9:  * Requires floating point output: cc build.c build0.c numtab.c serialno.c -f
        !            10:  * Usage: build [ -dv ]
        !            11:  * Options:
        !            12:  *     -d      Debug, echo commands without executing
        !            13:  *     -u      Update, rather than full installation
        !            14:  *     -v      Verbose
        !            15:  *
        !            16:  * In addition to the files necessary to run the single user system
        !            17:  * (/coherent, /etc/init, /bin/sh, /dev/console, /dev/null, etc.),
        !            18:  * the build disk from which this program runs must contain:
        !            19:  *     In /bin:        chgrp, chown, cpdir, date, echo, ln, mkdir, mv, rm, touch
        !            20:  *     In /conf:       boot, mboot, patch, upd_suppress, upd_save
        !            21:  *     In /dev:        at[01][abcdx], rat[01][abcd]
        !            22:  *     In /etc:        ATclock, badscan, fdisk, mkdev, mkfs, mount, umount
        !            23:  * It must also contain directories /mnt and /tmp.
        !            24:  * This program runs from a write-protected floppy-disk-based COHERENT
        !            25:  * boot disk, so it writes only to directory /tmp (mounted on a RAM disk).
        !            26:  */
        !            27: 
        !            28: #include <stdio.h>
        !            29: #include <canon.h>
        !            30: #include <string.h>
        !            31: #include <time.h>
        !            32: #include <unistd.h>
        !            33: #include <sys/devices.h>
        !            34: #include <sys/fdisk.h>
        !            35: #include <sys/filsys.h>
        !            36: #include <sys/stat.h>
        !            37: #include <sys/types.h>
        !            38: #include "build0.h"
        !            39: #include "serialno.h"
        !            40: 
        !            41: /* File names. */
        !            42: #define DEVICE_FILE            "/tmp/devices"
        !            43: 
        !            44: /* Manifest constants. */
        !            45: #define        VERSION         "5.0"
        !            46: #define        USAGE           "Usage: /etc/build [ -dv ]\n"
        !            47: #define        ATDEVS          (NPARTN+NPARTN) /* number of AT disk devices    */
        !            48: #define        BSIZE           512             /* sector size                  */
        !            49: 
        !            50: #define        BAR_BAR         "_bar"          /* 1st copy of serial # */
        !            51: #define        BAR_ENTRY       "_entry"        /* 2nd copy of serial # */
        !            52: #define        MAXSIZE         500             /* suggested max size (MB)      */
        !            53: #define        MINSIZE         10              /* required root size (MB)      */
        !            54: #define        NEEDSIZE        10              /* suggested min root size (MB) */
        !            55: #define        PIPEDEV         "pipedev"       /* kernel pipe F.S. device */
        !            56: #define        ROOTDEV         "rootdev"       /* kernel root F.S. device */
        !            57: 
        !            58: #define        NAMESIZE        6               /* max device name buffer size  */
        !            59: #define        NDEVICES        24              /* number of disk devices       */
        !            60: 
        !            61: /* (unsigned long) sectors to (double) megabytes. */
        !            62: #define        meg(sec)        ((double)sec * BSIZE / 1000000.)
        !            63: 
        !            64: /* Device table structure. */
        !            65: typedef        struct  device  {
        !            66:        char            d_xname[NAMESIZE];      /* partition table name */
        !            67:        char            d_dname[NAMESIZE];      /* device name          */
        !            68:        int             d_major;                /* major number         */
        !            69:        int             d_minor;                /* minor number         */
        !            70:        int             d_flags;                /* flags                */
        !            71:        unsigned long   d_size;                 /* size in blocks       */
        !            72: }      DEVICE;
        !            73: 
        !            74: /* Flag bits. */
        !            75: #define        F_COH   0x01                            /* COHERENT partition   */
        !            76: #define        F_BOOT  0x02                            /* Active               */
        !            77: #define        F_ROOT  0x04                            /* Root                 */
        !            78: #define        F_FS    0x08                            /* File system exists   */
        !            79: #define        F_MOUNT 0x10                            /* Mounted by /etc/rc   */
        !            80: #define        F_PROTO 0x20                            /* Proto created        */
        !            81: #define        F_SCAN  0x40                            /* Badscanned           */
        !            82: #define        F_ATDEV 0x80                            /* AT device            */
        !            83: #define        isflag(i, f)    ((devices[i].d_flags & (f)) != 0)
        !            84: #define        notflag(i, f)   ((devices[i].d_flags & (f)) == 0)
        !            85: #define        clrflag(i, f)   devices[i].d_flags &= ~(f)
        !            86: #define        setflag(i, f)   devices[i].d_flags |= (f)
        !            87: 
        !            88: 
        !            89: 
        !            90: DEVICE devices[NDEVICES];
        !            91: 
        !            92: #if 0
        !            93: 
        !            94: /* get rid of this... this makes fdisk ALWAYS try to open 2 AT drives even
        !            95:  * if only one or none are present.
        !            96:  * Bob H. (8/10/93)
        !            97:  */
        !            98: /*
        !            99:  * Device table.
        !           100:  * add_devices() adds entries for devices created by /etc/mkdev.
        !           101:  * fdisk() zaps the entries for which the xdevice open fails.
        !           102:  */
        !           103: DEVICE devices[NDEVICES] = {
        !           104:        { "at0x", "at0a", AT_MAJOR, 0, F_ATDEV, 0L },
        !           105:        { "at0x", "at0b", AT_MAJOR, 1, F_ATDEV, 0L },
        !           106:        { "at0x", "at0c", AT_MAJOR, 2, F_ATDEV, 0L },
        !           107:        { "at0x", "at0d", AT_MAJOR, 3, F_ATDEV, 0L },
        !           108:        { "at1x", "at1a", AT_MAJOR, 4, F_ATDEV, 0L },
        !           109:        { "at1x", "at1b", AT_MAJOR, 5, F_ATDEV, 0L },
        !           110:        { "at1x", "at1c", AT_MAJOR, 6, F_ATDEV, 0L },
        !           111:        { "at1x", "at1d", AT_MAJOR, 7, F_ATDEV, 0L }
        !           112: };
        !           113: 
        !           114: #endif /* 0 */
        !           115: 
        !           116: 
        !           117: /* Externals. */
        !           118: extern long    atol();
        !           119: extern char    *fgets();
        !           120: extern long    lseek();
        !           121: extern time_t  time();
        !           122: 
        !           123: /* Forward. */
        !           124: void   add_devices();
        !           125: void   badscan();
        !           126: void   copy();
        !           127: char   *devname();
        !           128: void   done();
        !           129: int    exists_and_nz();
        !           130: void   fdisk();
        !           131: int    is_fs();
        !           132: void   mkdev();
        !           133: void   mkfs();
        !           134: void   new_boot();
        !           135: void   patches();
        !           136: char   *protoname();
        !           137: char   *rawname();
        !           138: void   rootpatch();
        !           139: void   save_files();
        !           140: void   user_devices();
        !           141: void   welcome();
        !           142: char   *xname();
        !           143: 
        !           144: /* Globals. */
        !           145: int    active = -1;                    /* active partition     */
        !           146: char   *activeos;                      /* active partition OS  */
        !           147: char   buf2[NBUF];                     /* extra buffer         */
        !           148: HDISK_S        hd;                             /* hard disk boot block */
        !           149: int    mboot;                          /* mboot replaced       */
        !           150: int    ncohdev;                        /* number of COHERENT devices */
        !           151: int    ndevices = 0;                   /* number of devices    */
        !           152: int    protoflag;                      /* prototypes created   */
        !           153: int    root;                           /* root partition       */
        !           154: char   tzone[NBUF];                    /* timezone             */
        !           155: char   tzone5[NBUF];                   /* timezone for Sys V   */
        !           156: int    update;                         /* update, rather than install */
        !           157: 
        !           158: main(argc, argv) int argc; char *argv[];
        !           159: {
        !           160:        register char *s;
        !           161: 
        !           162:        argv0 = argv[0];
        !           163:        abortmsg = 1;
        !           164:        usagemsg = USAGE;
        !           165:        if (argc > 1 && argv[1][0] == '-') {
        !           166:                for (s = &argv[1][1]; *s; ++s) {
        !           167:                        switch(*s) {
        !           168:                        case 'd':       ++dflag;        break;
        !           169:                        case 'u':       ++update;       break;
        !           170:                        case 'v':       ++vflag;        break;
        !           171:                        case 'V':
        !           172:                                fprintf(stderr, "%s: V%s\n", argv0, VERSION);
        !           173:                                break;
        !           174:                        default:        usage();        break;
        !           175:                        }
        !           176:                }
        !           177:                --argc;
        !           178:                ++argv;
        !           179:        }
        !           180:        if (argc != 1)
        !           181:                usage();
        !           182: 
        !           183:        welcome();
        !           184:        mkdev();
        !           185: 
        !           186:        fdisk();
        !           187:        if (update) {
        !           188:                new_boot();     /* write out new boot block for tboot */
        !           189:                save_files();
        !           190:        } else {
        !           191:                badscan();
        !           192:                mkfs();
        !           193:        }
        !           194:        copy();
        !           195: 
        !           196:        if (!update)
        !           197:                user_devices();
        !           198: 
        !           199:        rootpatch();
        !           200:        patches();
        !           201:        sys("/bin/echo /etc/build: success >>/mnt/etc/install.log", S_NONFATAL);
        !           202:        sprintf(cmd, "TIMEZONE=\"%s\" /bin/date >>/mnt/etc/install.log", tzone);
        !           203:        sys(cmd, S_NONFATAL);
        !           204:        sys("/bin/echo >>/mnt/etc/install.log", S_NONFATAL);
        !           205:        sprintf(cmd, "/etc/umount %s", devname(root, 1));
        !           206:        sync();
        !           207:        sys(cmd,S_NONFATAL);
        !           208:        done();
        !           209:        sys("/etc/reboot -p", S_IGNORE);
        !           210: 
        !           211:        /* NOTREACHED */
        !           212:        exit(0);
        !           213: }
        !           214: 
        !           215: /*
        !           216:  * Append devices as specified by /etc/mkdev to devices table.
        !           217:  */
        !           218: void
        !           219: add_devices()
        !           220: {
        !           221:        register FILE *fp;
        !           222:        register int i, n;
        !           223: 
        !           224:        if ((fp = fopen(DEVICE_FILE, "r")) == NULL)
        !           225:                return;
        !           226: 
        !           227:        for (i = ndevices; i < NDEVICES; i++) {
        !           228:                n = fscanf(fp, "%s %s %d %d\n",
        !           229:                        devices[i].d_xname, devices[i].d_dname,
        !           230:                        &devices[i].d_major, &devices[i].d_minor);
        !           231:                if (n == 0 || n == EOF)
        !           232:                        break;
        !           233:                else if (n != 4)
        !           234:                        fatal("scanf failed on %s, n=%d", DEVICE_FILE, n);
        !           235:                ++ndevices;
        !           236:        }
        !           237:        if (i == NDEVICES)
        !           238:                nonfatal("too many devices, excess ignored");
        !           239: 
        !           240:        fclose(fp);
        !           241: }
        !           242: 
        !           243: /*
        !           244:  * Scan each COHERENT device for bad blocks.
        !           245:  */
        !           246: void
        !           247: badscan()
        !           248: {
        !           249:        register int i;
        !           250:        register char *name;
        !           251: 
        !           252:        cls(1);
        !           253:        printf(
        !           254: "The next step in installation is to scan each COHERENT partition\n"
        !           255: "for bad blocks.  This will not write to the partition being scanned.\n"
        !           256: "Be patient.  This takes a few minutes.\n"
        !           257:                );
        !           258:        for (i = 0; i < ndevices; i++) {
        !           259:                if (notflag(i, F_COH) || notflag(i, F_ATDEV))
        !           260:                        continue;       /* scan only AT device COH partitions */
        !           261:                printf("\n");
        !           262:                name = devname(i, 0);
        !           263:                if (isflag(i, F_FS)) {
        !           264:                        printf(
        !           265: "Partition %d (%s) already contains a COHERENT filesystem.\n"
        !           266: "If you wish to continue to use the existing filesystem, you can skip\n"
        !           267: "scanning it for bad blocks.  If you want to replace it with an empty\n"
        !           268: "filesystem, you must scan it for bad blocks first.\n",
        !           269:                                i, name);
        !           270:                        if (yes_no("Do you want to scan %s for bad blocks",
        !           271:                                name) == 0)
        !           272:                                continue;
        !           273:                }
        !           274:                printf("Scanning partition %d:\n", i);
        !           275:                setflag(i, F_SCAN);
        !           276:                sprintf(cmd, "/etc/badscan -v -o %s %s %s",
        !           277:                        protoname(i), rawname(i, 1), xname(i, 1));
        !           278:                if (sys(cmd, S_NONFATAL) == 0) {
        !           279:                        setflag(i, F_PROTO);
        !           280:                        ++protoflag;
        !           281:                }
        !           282:        }
        !           283: }
        !           284: 
        !           285: /*
        !           286:  * Mount the root filesystem, copy files to it, patch /coherent.
        !           287:  * Kludge around as required.
        !           288:  */
        !           289: void
        !           290: copy()
        !           291: {
        !           292:        cls(0);
        !           293:        printf(
        !           294: "The next step is to copy some COHERENT files from the diskette to the\n"
        !           295: "root filesystem of your hard disk.  This will take a few minutes...\n"
        !           296:                );
        !           297: 
        !           298:        /* Mount the filesystem. */
        !           299:        sprintf(cmd, "/etc/mount %s /mnt", devname(root, 1));
        !           300: 
        !           301:        sys(cmd, S_FATAL);
        !           302: 
        !           303:        if(update){
        !           304:                printf(
        !           305: "The existing /coherent kernel on the root file system will now be renamed to\n"
        !           306: "coh.B4.420. After this the remainder of diskette #1 will be copied.\n\n"
        !           307:                );
        !           308: 
        !           309:                /* move the existing kernel names /coherent to coh.B4.420 */
        !           310:                sprintf(cmd,"/bin/cp /mnt/coherent /mnt/coh.B4.420 2>/dev/null");
        !           311:                sys(cmd,S_NONFATAL);
        !           312:        }
        !           313: 
        !           314:        /* Copy the boot floppy. */
        !           315:        sprintf(cmd, "/bin/cpdir -ad%s -smnt -sbegin -stmp %s / /mnt",
        !           316:          (vflag) ? "v" : "", (update) ? "`cat /conf/upd_suppress`" : "");
        !           317:        sys(cmd, S_FATAL);
        !           318: 
        !           319:        /* Copy idtune and idenable data files. */
        !           320:        sprintf(cmd, "/bin/cp %s %s /mnt/conf", IDCMDFILE, IDVARFILE);
        !           321:        sys(cmd, S_FATAL);
        !           322: 
        !           323:        /* Copy patch file for debugging. */
        !           324:        sprintf(cmd, "/bin/cp %s /mnt/conf", PATCHFILE);
        !           325:        sys(cmd, S_FATAL);
        !           326: 
        !           327:        if (!is_dir("/mnt/mnt"))
        !           328:                sys("/bin/mkdir /mnt/mnt", S_FATAL);
        !           329:        sys("/bin/chmog 0755 bin bin /mnt/mnt", S_NONFATAL);
        !           330: 
        !           331:        /* Write entry to /etc/install.log. */
        !           332:        sprintf(cmd, "/bin/echo /etc/build: %s %s >>/mnt/etc/install.log",
        !           333:                "386",
        !           334:                (update) ? "update" : "install");
        !           335:        sys(cmd, S_NONFATAL);
        !           336:        sprintf(cmd, "TIMEZONE=\"%s\" /bin/date >>/mnt/etc/install.log", tzone);
        !           337:        sys(cmd, S_NONFATAL);
        !           338: 
        !           339:        /* If /etc/mkdev created devices in /tmp/dev, copy them to /dev. */
        !           340:        /* Remove the copies in /tmp/dev on the hard disk. */
        !           341:        if (exists("/tmp/dev"))
        !           342:                sys("/bin/cpdir -d /tmp/dev /mnt/dev", S_FATAL);
        !           343:        if (exists("/tmp/drvld.all")) {
        !           344:                sys("/bin/cp /tmp/drvld.all /mnt/etc/drvld.all", S_NONFATAL);
        !           345:                sys("/bin/chmog 0744 root root /mnt/etc/drvld.all", S_NONFATAL);
        !           346:        }
        !           347: 
        !           348:        sys("/bin/cat /tmp/ttys >>/mnt/etc/ttys", S_NONFATAL);
        !           349:        sys("/bin/cp /tmp/id-cmd /mnt/etc/conf/bin/id-cmd", S_NONFATAL);
        !           350:        sys("/bin/chmog 544 root root /mnt/etc/conf/bin/id-cmd", S_NONFATAL);
        !           351: 
        !           352:        /* Grow /lost+found to make room for files. */
        !           353:        sys("cd /mnt/lost+found \n"
        !           354:            "/bin/touch `/bin/from 1 to 200` \n"
        !           355:            "/bin/rm *", S_IGNORE);
        !           356: 
        !           357:        /* Create /autoboot. */
        !           358:        sys("/bin/ln -f /mnt/coherent /mnt/autoboot", S_FATAL);
        !           359: 
        !           360:        /* Replace the build version of /etc/brc with the install version. */
        !           361:        sys("/bin/rm /mnt/etc/brc", S_NONFATAL);
        !           362:        if (update)
        !           363:                sys("/bin/ln -f /mnt/etc/brc.update /mnt/etc/brc", S_FATAL);
        !           364:        else
        !           365:                sys("/bin/ln -f /mnt/etc/brc.install /mnt/etc/brc", S_FATAL);
        !           366: 
        !           367:        /* Link root device to /dev/root. */
        !           368:        sprintf(cmd, "/bin/ln -f /mnt%s /mnt/dev/root", devname(root, 0));
        !           369:        sys(cmd, S_FATAL);
        !           370: 
        !           371:        /* Write the timezone to /etc/timezone. */
        !           372:        sprintf(cmd, "/bin/echo export TIMEZONE=\\\"%s\\\" >/mnt/etc/timezone", tzone);
        !           373:        sys(cmd, S_NONFATAL);
        !           374:        sprintf(cmd, "/bin/echo export TZ=\\\"%s\\\" >>/mnt/etc/timezone", tzone5);
        !           375:        sys(cmd, S_NONFATAL);
        !           376: 
        !           377: 
        !           378:        /* If a mkdev file was created for tape devices for the hai driver,
        !           379:         * copy it to /etc/conf/hai/mkdev so that when the final kernel is
        !           380:         * finally built, the mkdev script will automatically be invoked to
        !           381:         * create the appropriate tape device nodes.
        !           382:         * Bob H. (August 13, 1993)
        !           383:         */
        !           384: 
        !           385:        if(exists("/tmp/haimkdev")){
        !           386:                sys("cp /tmp/haimkdev /mnt/etc/conf/hai/mkdev",S_NONFATAL);
        !           387:        }
        !           388: 
        !           389:        if (!update) {
        !           390:                /* Write the serial number to /etc/serialno. */
        !           391:                sprintf(cmd, "/bin/echo %s >/mnt/etc/serialno", serialno);
        !           392:                sys(cmd, S_NONFATAL);
        !           393:        }
        !           394: 
        !           395:        /* Save the prototypes from /tmp to /conf. */
        !           396:        if (protoflag)
        !           397:                sys("/bin/mv /tmp/*.proto /mnt/conf", S_NONFATAL);
        !           398: }
        !           399: 
        !           400: /*
        !           401:  * Generate a device name from a DEVICE entry name.
        !           402:  * Return a pointer to the statically allocated name.
        !           403:  * If flag and not one of the built-in AT device names,
        !           404:  * the device is in /tmp/dev rather than /dev.
        !           405:  * Sleazy hack: this always writes "/tmp/dev/..." in the buffer and
        !           406:  * massages the return value accordingly so that subsequent calls
        !           407:  * with same i but different flag will not clobber previous return values.
        !           408:  */
        !           409: char *
        !           410: devname(i, flag) int i, flag;
        !           411: {
        !           412:        static char name[4+4+1+NAMESIZE];       /* e.g. "/tmp/dev/at0a" */
        !           413: 
        !           414: #if 0
        !           415:        sprintf(name, "/tmp/dev/%s", devices[i].d_dname);
        !           416:        return (flag && notflag(i, F_ATDEV)) ? name : name+4;
        !           417: #endif
        !           418: 
        !           419:        sprintf(name, "/dev/%s", devices[i].d_dname);
        !           420:        return (name);
        !           421: }
        !           422: 
        !           423: /*
        !           424:  * Done.
        !           425:  * Print useful information.
        !           426:  */
        !           427: void
        !           428: done()
        !           429: {
        !           430:        cls(1);
        !           431:        printf(
        !           432: "You have installed the COHERENT operating system onto your hard disk.\n"
        !           433: "To install files from the remaining diskettes in the installation kit,\n"
        !           434: "you must boot the COHERENT system from the hard disk.  It will prompt\n"
        !           435: "you to install the remaining diskettes in the installation kit.\n"
        !           436: "\n"
        !           437: "After you finish reading this information, remove the floppy disk,\n"
        !           438: "hit <Enter> and your system will automatically reboot.\n"
        !           439: "\n"
        !           440:                );
        !           441:        if (mboot) {
        !           442:                printf(
        !           443: "If you type a partition number (0 to 7) while\n"
        !           444: "the boot procedure is trying to read the floppy disk,\n"
        !           445: "your system will boot the operating system on that partition.\n"
        !           446:                );
        !           447:                if (active != -1) {
        !           448:                        printf("If you type nothing, your system will boot ");
        !           449:                        if (active == root)
        !           450:                                printf("COHERENT (partition %d).\n", active);
        !           451:                        else {
        !           452:                                printf("active partition %d", active);
        !           453:                                if (activeos != NULL)
        !           454:                                        printf(" (%s)", activeos);
        !           455:                                printf(".\n", active);
        !           456:                        }
        !           457:                }
        !           458:        } else {
        !           459:                printf(
        !           460: "You must boot the new COHERENT root filesystem on partition %d.\n",
        !           461:                  root);
        !           462:        }
        !           463: 
        !           464:        sync();
        !           465:        printf(
        !           466: "\nNow remove the floppy disk so your system does not boot from the floppy.\n");
        !           467: 
        !           468:        if (mboot && root != active)
        !           469:                printf(
        !           470: "You MUST type %d when the system tries to read the floppy disk during the boot\n"
        !           471: "procedure to boot the partition containing the new COHERENT root filesystem.\n",
        !           472:                        root);
        !           473: }
        !           474: 
        !           475: /*
        !           476:  * See if the specified file exists and has non-zero length.
        !           477:  */
        !           478: exists_and_nz(fn)
        !           479: char *fn;
        !           480: {
        !           481:        struct stat s;
        !           482: 
        !           483:        if (stat(fn, &s) == -1)
        !           484:                return 0;                       /* does not exist */
        !           485:        return (s.st_size > 0);                 /* exists and length > 0 */
        !           486: }
        !           487: 
        !           488: /*
        !           489:  * Get partition table information.
        !           490:  */
        !           491: void
        !           492: fdisk()
        !           493: {
        !           494:        register int fd, i, j, n, part, cohpart, flag;
        !           495:        char *fname, *s;
        !           496: 
        !           497:        cls(1);
        !           498:        if (update) {
        !           499:                printf("Reading existing partition tables...\n");
        !           500:        } else {
        !           501:                printf(
        !           502: "This installation procedure allows you to create one or more partitions\n"
        !           503: "on your hard disk to contain the COHERENT system and its files.\n"
        !           504: "Each disk drive may contain no more than four logical partitions.\n"
        !           505: "If all four partitions on your disk are already in use, you will\n"
        !           506: "have to overwrite at least one of them to install COHERENT.\n"
        !           507: "If your disk uses fewer than four partitions and has enough unused space\n"
        !           508: "for COHERENT (%d megabytes), you can install COHERENT into the unused space.\n"
        !           509: "If you intend to install MS-DOS after installing COHERENT,\n"
        !           510: "you must leave the first physical partition free for MS-DOS.\n"
        !           511: "\n"
        !           512: "The next part of the installation procedure will let you change the\n"
        !           513: "partitions on your hard disk.  Data on unchanged hard disk partitions\n"
        !           514: "will not be changed.  However, data already on your hard disk may be\n"
        !           515: "destroyed if you change the base or the size of a logical partition,\n"
        !           516: "or if you change the order of the partition table entries.\n"
        !           517: "If you need to back up existing data from the hard disk,\n"
        !           518: "type <Ctrl-C> now to interrupt COHERENT installation; then reboot your\n"
        !           519: "system and back up your hard disk data onto diskettes.\n"
        !           520: "\n", NEEDSIZE);
        !           521:                cls(1);
        !           522:                printf(
        !           523: "COHERENT initialization normally writes a new master bootstrap program onto\n"
        !           524: "your hard disk.  The COHERENT master boot allows you to boot the operating\n"
        !           525: "system on one selected disk partition (the active partition) automatically;\n"
        !           526: "it also allows you to boot the operating system on any disk partition by\n"
        !           527: "typing a key when you reboot.  Mark Williams strongly recommends that you\n"
        !           528: "use the COHERENT master boot.  However, the COHERENT master boot may not\n"
        !           529: "work with some operating systems (for example, Xenix) if you make the\n"
        !           530: "COHERENT partition active; instead, leave the other partition (e.g. Xenix)\n"
        !           531: "active and boot COHERENT by typing a key.  If you do not use the COHERENT\n"
        !           532: "bootstrap, you must understand how to boot the COHERENT partition using your\n"
        !           533: "existing bootstrap program.\n"
        !           534: "\n"
        !           535:                );
        !           536:                if (yes_no("Do you want to use the COHERENT master boot"))
        !           537:                        ++mboot;
        !           538: 
        !           539: retry:
        !           540:        /* Construct an /etc/fdisk command with appropriate xdevice names. */
        !           541:                strcpy(cmd, "/etc/fdisk -cB");
        !           542:                if (mboot)
        !           543:                        strcat(cmd, "b /conf/mboot");
        !           544: 
        !           545: 
        !           546:                for (i = 0; i < ndevices; i++) {
        !           547:                        if (i == 0
        !           548:         || strcmp(devices[i-1].d_xname, devices[i].d_xname) != 0) {
        !           549:                                if ((fd = open(xname(i, 1), 0)) < 0){
        !           550:                                        continue;
        !           551:                                }
        !           552:                                close(fd);
        !           553:                                strcat(cmd, " ");
        !           554:                                strcat(cmd, xname(i, 1));
        !           555:                        }
        !           556:                }
        !           557:                sys(cmd, S_FATAL);              /* do the fdisk command */
        !           558:        } /* !update */
        !           559: 
        !           560:        /* Read the partition table and set device flags appropriately. */
        !           561:        for (i = part = 0; i < ndevices; ++i) {
        !           562:                if (i != 0
        !           563:                 && strcmp(devices[i-1].d_xname, devices[i].d_xname) == 0)
        !           564:                        continue;               /* partition already done */
        !           565:                fname = xname(i, 1);
        !           566:                if ((fd = open(fname, 0)) < 0)
        !           567:                        continue;               /* cannot open xdevice */
        !           568:                if (read(fd, &hd, sizeof hd) != sizeof hd)
        !           569:                        fatal("%s: read failed", fname);
        !           570:                close(fd);
        !           571:                if (hd.hd_sig != HDSIG) {
        !           572:                        nonfatal("%s: invalid partition table", fname);
        !           573:                        continue;
        !           574:                }
        !           575:                /* The partition table is valid, check its partitions. */
        !           576:                for (j = 0; j < NPARTN && i + j < ndevices; j++) {
        !           577:                        n = i + j;              /* index in devices[] */
        !           578:                        if (part != n) {
        !           579:                                /*
        !           580:                                 * Copy over unopenable partitions.
        !           581:                                 * This allows subsequent code to use
        !           582:                                 * the devices[] index as the partition number.
        !           583:                                 */
        !           584:                                devices[part] = devices[n];
        !           585:                                n = part;
        !           586:                        }
        !           587:                        part++;                 /* another valid partition */
        !           588:                        if (hd.hd_partn[j].p_boot != 0) {
        !           589:                                setflag(n, F_BOOT);
        !           590:                                if (active == -1)
        !           591:                                        active = n;     /* first active partition */
        !           592:                                switch(hd.hd_partn[j].p_sys) {
        !           593:                                case SYS_COH:
        !           594:                                        activeos = "COHERENT";
        !           595:                                        break;
        !           596:                                case SYS_DOS_12:
        !           597:                                case SYS_DOS_16:
        !           598:                                case SYS_DOS_XP:
        !           599:                                case SYS_DOS_LARGE:
        !           600:                                        activeos = "MS-DOS";
        !           601:                                        break;
        !           602:                                case SYS_XENIX:
        !           603:                                        activeos = "Xenix";
        !           604:                                        break;
        !           605:                                default:
        !           606:                                        activeos = NULL;
        !           607:                                        break;
        !           608:                                }
        !           609:                        }
        !           610:                        if (hd.hd_partn[j].p_sys != SYS_COH)
        !           611:                                continue;
        !           612: 
        !           613:                        /* Make sure the device can be accessed. */
        !           614:                        s = devname(n, 1);
        !           615:                        if (!exists(s)) {
        !           616:                                nonfatal("cannot open COHERENT partition %d (%s)",
        !           617:                                        n, devname(n, 0));
        !           618:                                continue;
        !           619:                        } else if (hd.hd_partn[j].p_size == 0L) {
        !           620:                                nonfatal("COHERENT partition %d (%s) is empty",
        !           621:                                        j, devname(n, 0));
        !           622:                                continue;
        !           623:                        }
        !           624: 
        !           625:                        /* OK, set flags in the device table. */
        !           626:                        ++ncohdev;
        !           627:                        setflag(n, F_COH);
        !           628:                        devices[n].d_size = hd.hd_partn[j].p_size;
        !           629:                        if (is_fs(s, devices[n].d_size))
        !           630:                                setflag(n, F_FS);
        !           631: 
        !           632:                        /* Make sure the device is not mounted. */
        !           633:                        sprintf(cmd, "/etc/umount %s 2>/dev/null", s);
        !           634:                        sys(cmd, S_IGNORE);
        !           635:                }
        !           636:        }
        !           637:        ndevices = part;
        !           638:        if (ndevices == 0)
        !           639:                fatal("cannot open partition tables");
        !           640:        else if (ncohdev == 0)
        !           641:                fatal("no COHERENT partition found");
        !           642:        cls(0);
        !           643:        printf("Your system includes %d COHERENT partition%s:\n",
        !           644:                ncohdev, (ncohdev == 1) ? "" : "s");
        !           645:        printf("Drive Partition\t  Device\tMegabytes\n");
        !           646:        for (flag = i = 0; i < ndevices; i++)
        !           647:                if (isflag(i, F_COH)) {
        !           648:                        cohpart = i;
        !           649:                        printf("%3d\t%3d\t%s\t%.2f\n",
        !           650:                                i/NPARTN,
        !           651:                                i,
        !           652:                                devname(i, 0),
        !           653:                                meg(devices[i].d_size));
        !           654:                        if (((int)meg(devices[i].d_size)) > MAXSIZE)
        !           655:                                flag = 1;
        !           656:                }
        !           657:        if (!update && flag) {
        !           658:                printf(
        !           659: "\n"
        !           660: "Your system includes a large COHERENT filesystem (larger than %d megabytes).\n"
        !           661: "You should repartition the hard disk to define smaller COHERENT partitions.\n",
        !           662:                        MAXSIZE);
        !           663:                if (yes_no("Do you want to repartition the hard disk"))
        !           664:                        goto retry;
        !           665:                printf("\n");
        !           666:        }
        !           667: 
        !           668:        if (ncohdev == 1) {
        !           669:                root = cohpart;
        !           670:                setflag(root, F_ROOT);
        !           671:                return;
        !           672:        }
        !           673:        printf(
        !           674: "You must specify one COHERENT partition as the root filesystem.\n"
        !           675:                );
        !           676:        if (!update)
        !           677:                printf(
        !           678: "The root filesystem contains the files normally used by COHERENT.\n"
        !           679: "The root filesystem should contain at least %d megabytes.\n",
        !           680:                        NEEDSIZE);
        !           681:        if (ndevices > ATDEVS)
        !           682:                printf(
        !           683: "The COHERENT root filesystem must be on partition 0 through 7.\n"
        !           684:                        );
        !           685:        if (active != -1 && isflag(active, F_COH)) {
        !           686:                printf("COHERENT partition %d is marked as active in the partition table.\n",
        !           687:                        active);
        !           688:                if (!update)
        !           689:                        printf(
        !           690: "If you choose it as the root, you can boot COHERENT automatically.\n"
        !           691:                                );
        !           692:        }
        !           693:        printf("\n");
        !           694: again:
        !           695:        if (update)
        !           696:                s = get_line("Which partition contains the COHERENT root filesystem?");
        !           697:        else
        !           698:                s = get_line("Which partition do you want to be the root filesystem?");
        !           699:        root = *s - '0';
        !           700:        if (*++s != '\0' || root < 0 || root >= ATDEVS || notflag(root, F_COH)) {
        !           701:                printf("Enter a number between 0 and 7 which specifies a COHERENT partition.\n");
        !           702:                goto again;
        !           703:        }
        !           704: 
        !           705:        if (meg(devices[root].d_size) < (double)NEEDSIZE) {
        !           706:                if (update) {
        !           707:                        printf(
        !           708: "\n"
        !           709: "Your current COHERENT 4.0.x root filesystem is too small to contain the\n"
        !           710: "COHERENT 4.2.0 update along with the on-line manual pages and the on-line\n"
        !           711: "dictionary.  If you wish to have the COHERENT 4.2.0 on-line manual pages and\n"
        !           712: "the on-line dictionary installed, you will need to do the following:\n\n"
        !           713: "\t1) Exit from the update.\n"
        !           714: "\t2) Boot from your existing COHERENT root partition.\n"
        !           715: "\t3) Perform a full \"backup\" of ALL PARTITIONS on your hard disk\n"
        !           716: "\t   include all of your existing programs, files, and any system\n"
        !           717: "\t   files that you have modified using backup utilities \"cpio\",\n"
        !           718: "\t   \"ustar\", or \"tar\".  If your hard disk includes partitions\n"
        !           719: "\t   assigned to other operating systems, be sure to back these up also!\n"
        !           720: "\t4) Perform a full installation of COHERENT 386 using the same disks\n"
        !           721: "\t   supplied for the update.  Note that you will need to increase the\n"
        !           722: "\t   size of the root partition, or you will need to select a different\n"
        !           723: "\t   partition to contain the root filesystem.   Please refer to the\n"
        !           724: "\t   chapter on installation found in the COHERENT 386 release notes.\n"
        !           725:                                );
        !           726:                        sync();
        !           727:                        if (yes_no("Do you wish to abort the update"))
        !           728:                                fatal("Insufficient disk space for update!");
        !           729:                } else {
        !           730:                        printf("Partition %d contains only %.2f megabytes.\n",
        !           731:                                root, meg(devices[root].d_size));
        !           732:                        if (meg(devices[root].d_size) < (double)MINSIZE) {
        !           733:                                printf("It is too small to contain the COHERENT root filesystem.\n");
        !           734:                                goto again;
        !           735:                        }
        !           736:                        if (!yes_no("Are you sure you want it to be the root partition"))
        !           737:                                goto again;
        !           738:                }
        !           739:        }
        !           740:        setflag(root, F_ROOT);
        !           741: }
        !           742: 
        !           743: /*
        !           744:  * Check if a special file is a well-formed filesystem.
        !           745:  * This routine is derived from code in "mount.c".
        !           746:  * Here the check that "special" is a block special file is eliminated
        !           747:  * and the size is checked against the partition size.
        !           748:  */
        !           749: int
        !           750: is_fs(special, size) char *special; unsigned long size;
        !           751: {
        !           752:        static struct filsys f;
        !           753:        register int fd;
        !           754:        register struct filsys *fp;
        !           755:        register daddr_t *dp;
        !           756:        register ino_t *ip, maxinode;
        !           757: 
        !           758:        if ((fd = open(special, 0)) < 0                 /* cannot open */
        !           759:         || lseek(fd, (long)SUPERI*BSIZE, 0) == -1L     /* seek failed */
        !           760:         || read(fd, &f, sizeof(f)) != sizeof(f))       /* read failed */
        !           761:                return 0;
        !           762:        close(fd);
        !           763: 
        !           764:        /* Canonical stuff. */
        !           765:        fp = &f;
        !           766:        canshort(fp->s_isize);
        !           767:        candaddr(fp->s_fsize);
        !           768:        canshort(fp->s_nfree);
        !           769:        for (dp = &fp->s_free[0]; dp < &fp->s_free[NICFREE]; dp += 1)
        !           770:                candaddr(*dp);
        !           771:        canshort(fp->s_ninode);
        !           772:        for (ip = &fp->s_inode[0]; ip < &fp->s_inode[NICINOD]; ip += 1)
        !           773:                canino(*ip);
        !           774:        candaddr(fp->s_tfree);
        !           775:        canino(fp->s_tinode);
        !           776: 
        !           777:        /* Test for rationality. */
        !           778:        maxinode = (fp->s_isize - INODEI) * INOPB + 1;
        !           779:        if (fp->s_isize >= fp->s_fsize)
        !           780:                return 0;
        !           781:        if ((fp->s_tfree < fp->s_nfree)
        !           782:        ||  (fp->s_tfree >= fp->s_fsize - fp->s_isize + 1))
        !           783:                return 0;
        !           784:        if ((fp->s_tinode < fp->s_ninode) || (fp->s_tinode >= maxinode-1 ))
        !           785:                return 0;
        !           786:        for (dp = &fp->s_free[0]; dp < &fp->s_free[fp->s_nfree]; dp += 1)
        !           787:                if ((*dp < fp->s_isize) || (*dp >= fp->s_fsize))
        !           788:                        return 0;
        !           789:        for (ip = &fp->s_inode[0]; ip < &fp->s_inode[fp->s_ninode]; ip += 1)
        !           790:                if ((*ip < 1) || (*ip > maxinode))
        !           791:                        return 0;
        !           792:        if (fp->s_fsize > (daddr_t)size)
        !           793:                return 0;
        !           794:        if (fp->s_fsize > (daddr_t)size)
        !           795:                nonfatal("warning: filesystem size=%ld but partition size=%ld",
        !           796:                        (long)fp->s_fsize, size);
        !           797:        return 1;
        !           798: }
        !           799: 
        !           800: /*
        !           801:  * Make new devices with /etc/mkdev if appropriate.
        !           802:  */
        !           803: void
        !           804: mkdev()
        !           805: {
        !           806:        int hdc;
        !           807: 
        !           808:        cls(0);
        !           809: printf("Most PC compatible computer systems use MFM, RLL, IDE, or ESDI disk\n");
        !           810: printf("controllers and disk drives.  A few percent use SCSI disk drives.\n");
        !           811: printf("Please indicate the type(s) of disk drive(s) used in your computer system.\n");
        !           812: printf("If you are uncertain of the type, please select choice 1.\n\n");
        !           813: printf("Are you using:\n\n");
        !           814: printf("1.  AT-compatible hard drive controller (IDE/RLL/MFM/ESDI).\n");
        !           815: printf("2.  SCSI hard drive controller.\n");
        !           816: printf("3.  Both.\n\n");
        !           817:        hdc = get_int(1, 3, "Enter your choice:");
        !           818: 
        !           819:        /*
        !           820:         * Note: -b option to mkdev also OK for update
        !           821:         */
        !           822:        sprintf(cmd, "/etc/mkdev -b%s%s %s %s",
        !           823:                (dflag) ? "d" : "",
        !           824:                (vflag) ? "v" : "",
        !           825:                (hdc == 1 || hdc == 3) ? "at" : "",
        !           826:                (hdc == 2 || hdc == 3) ? "scsi" : "");
        !           827:        sys(cmd, S_NONFATAL);
        !           828:        add_devices();
        !           829: 
        !           830: /* Call add_devices to read /tmp/devics for ALL types of drives. Previously,
        !           831:  * the 2 possible AT drives were hard coded so that they would always be read,
        !           832:  * even if only one or none were present.
        !           833:  * Bob H. (8/10/93)
        !           834:  */
        !           835: 
        !           836: /*     if (hdc == 2 || hdc == 3) */
        !           837: 
        !           838: }
        !           839: 
        !           840: /*
        !           841:  * Make filesystems on COHERENT partitions.
        !           842:  */
        !           843: void
        !           844: mkfs()
        !           845: {
        !           846:        register int i;
        !           847:        char *name;
        !           848: 
        !           849:        cls(0);
        !           850:        printf(
        !           851: "You must create an empty COHERENT filesystem on each COHERENT partition\n"
        !           852: "before you can use it.  Creating an empty filesystem will destroy all\n"
        !           853: "previously existing data on the partition.\n"
        !           854:                );
        !           855:        for (i = 0; i < ndevices; i++) {
        !           856:                if (notflag(i, F_COH) || (isflag(i, F_ATDEV) && notflag(i, F_SCAN)))
        !           857:                        continue;
        !           858:                printf("\n");
        !           859:                if (isflag(i, F_FS))
        !           860:                        printf("Partition %d (%s) already contains a COHERENT filesystem.\n",
        !           861:                                i, devname(i, 0));
        !           862:                if (i == root)
        !           863:                        printf(
        !           864: "\nWARNING!!!\n\n"
        !           865: "The installation process expects a NEW file system in the root partition.\n"
        !           866: "If you are trying to update an existing COHERENT partition, you must run\n"
        !           867: "the COHERENT update.  If you are trying to install again after a partial\n"
        !           868: "or failed installation, a new root file system must be created again now.\n\n"
        !           869:                        );
        !           870:                name = devname(i, 1);
        !           871: again:
        !           872:                if (yes_no("Do you want to create a new COHERENT filesystem on partition %d", i)) {
        !           873:                        if (notflag(i, F_ATDEV))
        !           874:                                sprintf(cmd, "/etc/mkfs %s %lu", name, devices[i].d_size);
        !           875:                        else if (notflag(i, F_PROTO)) {
        !           876:                                printf("The attempt to scan %s for bad blocks previously failed.",
        !           877:                                        name);
        !           878:                                if (yes_no("Do you want to create a new filesystem on it without a bad block list"))
        !           879:                                        sprintf(cmd, "/etc/mkfs %s %lu", name, devices[i].d_size);
        !           880:                                else
        !           881:                                        continue;
        !           882:                        } else
        !           883:                                sprintf(cmd, "/etc/mkfs %s %s",
        !           884:                                        name, protoname(i));
        !           885:                        clrflag(i, F_FS);
        !           886:                        if (sys(cmd, S_NONFATAL) == 0) {
        !           887:                                setflag(i, F_FS);
        !           888:                                if (notflag(i, F_PROTO)) {
        !           889:                                        /* Stick a boot block on device. */
        !           890:                                        /* The proto does it in the other case. */
        !           891:                                        sprintf(cmd, "/bin/cp /conf/boot %s", name);
        !           892:                                        sys(cmd, S_NONFATAL);
        !           893:                                }
        !           894: 
        !           895:                                /*
        !           896:                                 * Mount the file system,
        !           897:                                 * create /lost+found,
        !           898:                                 * unmount it.
        !           899:                                 */
        !           900:                                sprintf(cmd, "/etc/mount %s /mnt", name);
        !           901:                                if (sys(cmd, S_NONFATAL))
        !           902:                                        continue;
        !           903:                                sprintf(cmd, "/bin/mkdir /mnt/lost+found");
        !           904:                                if (sys(cmd, S_NONFATAL) == 0)
        !           905:                                        sys(
        !           906: "cd /mnt/lost+found \n"
        !           907: "/bin/touch `/bin/from 1 to 200` \n"
        !           908: "/bin/rm *",
        !           909:                                                S_IGNORE);
        !           910:                                sprintf(cmd, "/etc/umount %s", name);
        !           911:                                sys(cmd, S_NONFATAL);
        !           912:                        } else if (i == root)
        !           913:                                fatal("%s: root partition mkfs failed", name);
        !           914:                } else if (i == root) {
        !           915:                        if (notflag(i, F_FS)) {
        !           916:                                printf("You must create a filesystem on the root partition.\n");
        !           917:                                goto again;
        !           918:                        } else {
        !           919:                                /* Stick a boot block on the root device. */
        !           920:                                sprintf(cmd, "/bin/cp /conf/boot %s", name);
        !           921:                                sys(cmd, S_NONFATAL);
        !           922:                        }
        !           923:                }
        !           924:        }
        !           925: }
        !           926: 
        !           927: /*
        !           928:  * Place a bootstrap on the root filesystem.
        !           929:  * This is only called from update.
        !           930:  */
        !           931: void
        !           932: new_boot()
        !           933: {
        !           934:        sprintf(cmd, "/bin/cp /conf/boot %s", devname(root, 1));
        !           935:        sys(cmd, S_FATAL);
        !           936: }
        !           937: 
        !           938: /*
        !           939:  * If PATCHFILE exists, execute it.
        !           940:  */
        !           941: void
        !           942: patches()
        !           943: {
        !           944:        printf(
        !           945: "\nThe kernel on your hard drive will now be patched to run on your system.\n");
        !           946:        if (access(PATCHFILE, F_OK) == 0) {
        !           947:                sprintf(cmd, "/bin/sh %s", PATCHFILE);
        !           948:                sys(cmd, S_NONFATAL);
        !           949:        }
        !           950: }
        !           951: 
        !           952: /*
        !           953:  * Generate a prototype name from a DEVICE entry name.
        !           954:  * Return a pointer to the statically allocated name.
        !           955:  */
        !           956: char *
        !           957: protoname(i) int i;
        !           958: {
        !           959:        static char pname[5+NAMESIZE+6];        /* e.g. "/tmp/at0a.proto" */
        !           960: 
        !           961:        sprintf(pname, "/tmp/%s.proto", devices[i].d_dname);
        !           962:        return pname;
        !           963: }
        !           964: 
        !           965: /*
        !           966:  * Generate a raw device name from a DEVICE entry name.
        !           967:  * Return a pointer to the statically allocated name.
        !           968:  * If flag and not one of the built-in AT device names,
        !           969:  * the device is in /tmp/dev rather than /dev.
        !           970:  */
        !           971: char *
        !           972: rawname(i, flag) int i, flag;
        !           973: {
        !           974:        static char rname[4+4+1+1+NAMESIZE];    /* e.g. "/tmp/dev/rat0a" */
        !           975: 
        !           976:        sprintf(rname, "/tmp/dev/r%s", devices[i].d_dname);
        !           977:        return (flag && notflag(i,  F_ATDEV)) ? rname : rname+4;
        !           978: }
        !           979: 
        !           980: /*
        !           981:  * Patches to be done to the kernel - but can't do them yet because
        !           982:  * kernel hasn't been linked.
        !           983:  */
        !           984: void
        !           985: rootpatch()
        !           986: {
        !           987:        char line[120];
        !           988: 
        !           989:        /*
        !           990:         * After fdisk() we know "root".  Write to PATCHFILE the patches
        !           991:         * that will be needed when a new kernel is linked at /mnt/coherent.
        !           992:         */
        !           993:        /* For third kernel. */
        !           994:        sprintf(line, "unsigned long\t%s = 0x%lx;", BAR_BAR, atol(serialno));
        !           995:        cohtune_ent("cohmain", BAR_BAR, line);
        !           996: 
        !           997:        sprintf(line, "unsigned long\t%s = 0x%lx;", BAR_ENTRY, atol(serialno));
        !           998:        cohtune_ent("cohmain", BAR_ENTRY, line);
        !           999: 
        !          1000:        sprintf(line, "dev_t\t\t%s = makedev(%d,%d);",
        !          1001:          ROOTDEV, devices[root].d_major, devices[root].d_minor);
        !          1002:        cohtune_ent("cohmain", ROOTDEV, line);
        !          1003: 
        !          1004:        sprintf(line, "dev_t\t\t%s = makedev(%d,%d);",
        !          1005:          PIPEDEV, devices[root].d_major, devices[root].d_minor);
        !          1006:        cohtune_ent("cohmain", PIPEDEV, line);
        !          1007: 
        !          1008:        /* For the second kernel. */
        !          1009:        sprintf(cmd,
        !          1010:          "echo /conf/patch -v /mnt/coherent ronflag=0 "
        !          1011:          "\\\"%s\\=makedev\\(%d,%d\\)\\\" "
        !          1012:          "\\\"%s\\=makedev\\(%d,%d\\)\\\" >> %s\n",
        !          1013:          ROOTDEV, devices[root].d_major, devices[root].d_minor,
        !          1014:          PIPEDEV, devices[root].d_major, devices[root].d_minor, PATCHFILE);
        !          1015:        sys(cmd, S_FATAL);
        !          1016: }
        !          1017: 
        !          1018: /*
        !          1019:  * Need to mount root.
        !          1020:  * Need to set serialno.
        !          1021:  * Remove /usr/man/{ALL,COHERENT,MULTI}, /usr/man/man.tar*
        !          1022:  * Save off any special files before copying in the update
        !          1023:  * Need to umount root.
        !          1024:  */
        !          1025: void
        !          1026: save_files()
        !          1027: {
        !          1028:        char    buf[20];                /* more than enough for a serial # */
        !          1029:        int     fd;                     /* file descriptor */
        !          1030:        int     i;
        !          1031:        char    *s;
        !          1032: 
        !          1033:        cls(1);
        !          1034:        printf("We will now mount your existing COHERENT root filesystem...\n");
        !          1035:        sprintf(cmd, "/etc/mount %s /mnt", devname(root, 1));
        !          1036:        sys(cmd, S_FATAL);
        !          1037: 
        !          1038:        if (!is_dir("/mnt/dev"))        /* sanity check! */
        !          1039:                fatal("Corrupt or incorrect root filesystem specified");
        !          1040:        /*
        !          1041:         * Read in the old 286 serial number and save it off for later.
        !          1042:         * If it doesn't exist on the disk, make the user re-enter
        !          1043:         * the old serial number by hand.
        !          1044:         */
        !          1045:        serialno[0] = '\0';
        !          1046:        buf[0] = '\0';
        !          1047:        if ((fd = open("/mnt/etc/serialno", 0)) >= 0) {
        !          1048:                read(fd, buf, sizeof(buf)-1);   /* ignore errors */
        !          1049:                close(fd);
        !          1050:                if (!isserial(buf))             /* sets serialno[] */
        !          1051:                        serialno[0] = '\0';
        !          1052:        }
        !          1053:        if (serialno[0] == '\0') {
        !          1054:                printf(
        !          1055: "\nA card included with your original COHERENT distribution gives the\n"
        !          1056: "serial number of your copy of COHERENT.\n\n"
        !          1057:                        );
        !          1058:                for (i = 1; i <= 3; i++) {
        !          1059:                        s = get_line("Type in the serial number from the card:");
        !          1060:                        if (isserial(s))
        !          1061:                                break;
        !          1062:                        if (i < 3)
        !          1063:                                printf("Invalid serial number, please try again.\n");
        !          1064:                        else
        !          1065:                                fatal("invalid serial number");
        !          1066:                }
        !          1067:        }
        !          1068: 
        !          1069:        printf("\nRemoving old on-line COHERENT manual pages -- please wait...\n");
        !          1070:        sys("/bin/rm -rf /mnt/usr/man/ALL /mnt/usr/man/COHERENT "
        !          1071:            "/mnt/usr/man/MULTI /mnt/usr/man/man.tar*", S_NONFATAL);
        !          1072:        sync();
        !          1073: 
        !          1074:        /*
        !          1075:         * Save off any special files just in case the user wants to
        !          1076:         * get the old ones back...
        !          1077:         */
        !          1078:        if (!is_dir("/mnt/old_coh")) {
        !          1079:                printf(
        !          1080: "\nSaving existing configuration files to directory /old_coh -- please wait...\n\n"
        !          1081:                        );
        !          1082:                sys("mkdir -r `cat /conf/upd_dirs`", S_NONFATAL);
        !          1083:                sys(
        !          1084: "for a in `cat /conf/upd_save` ;"
        !          1085: " do ;"
        !          1086: " cp -d /mnt/$a /mnt/old_coh/$a 2>/dev/null && echo $a... ;"
        !          1087: " done ;"
        !          1088: " echo", S_IGNORE);
        !          1089:                sync();
        !          1090:        } else
        !          1091:                printf("Directory /old_coh contains configuration file backups.\n");
        !          1092: 
        !          1093: 
        !          1094:        sprintf(cmd, "rm -f /mnt/coherent.* /mnt/drv/*");  /* rm stale copies */
        !          1095:        sys(cmd, S_FATAL);
        !          1096: 
        !          1097:        sprintf(cmd, "/etc/umount %s", devname(root, 1));
        !          1098:        sys(cmd, S_FATAL);
        !          1099: 
        !          1100: }
        !          1101: 
        !          1102: /*
        !          1103:  * Configure user devices.
        !          1104:  * Assumes hard disk filesystem mounted on /mnt.
        !          1105:  * Write lines to /etc/mount.all, /etc/umount.all to [u]mount the user devices.
        !          1106:  */
        !          1107: void
        !          1108: user_devices()
        !          1109: {
        !          1110:        register int i, status;
        !          1111:        register char *s, *s2, *name, *rname;
        !          1112: 
        !          1113:        if (ncohdev == 1) {
        !          1114:                sys("/bin/echo /dev/root >>/mnt/etc/checklist", S_NONFATAL);
        !          1115:                return;
        !          1116:        }
        !          1117: 
        !          1118:        /* Create user device names. */
        !          1119:        cls(0);
        !          1120:        printf(
        !          1121: "Your system includes %d partition%s in addition to the root partition.\n"
        !          1122: "These partitions are usually mounted on directories in the COHERENT\n"
        !          1123: "root filesystem when the system goes into multiuser mode.\n"
        !          1124: "For example, one non-root partition might be mounted on\n"
        !          1125: "directory \"/u\", another on \"/v\", and so on.\n"
        !          1126: "You now may specify where you want each partition mounted.\n",
        !          1127:                ncohdev - 1, ncohdev == 2 ? "" : "s");
        !          1128:        for (i = 0; i < ndevices; i++) {
        !          1129:                if (notflag(i, F_COH) || notflag(i, F_FS) || isflag(i, F_ROOT))
        !          1130:                        continue;
        !          1131:                name = devname(i, 0);
        !          1132:                rname = rawname(i, 0);
        !          1133:                printf("\nPartition %d (%s):\n", i, name);
        !          1134:                if (yes_no("Do you want %s mounted", name)) {
        !          1135:                        setflag(i, F_MOUNT);
        !          1136: again:
        !          1137:                        s = get_line("Where do you want to mount it?");
        !          1138:                        if (*s != '/') {
        !          1139:                                printf("Type a directory name beginning with '/', such as \"/u\".\n");
        !          1140:                                goto again;
        !          1141:                        } else if ((s2 = strchr(s, ' ')) != NULL)
        !          1142:                                *s2 = '\0';
        !          1143:                        sprintf(cmd, "/mnt/%s", s);
        !          1144:                        if ((status = is_dir(cmd)) == -1) {
        !          1145:                                printf("%s exists but is not a directory.\n", s);
        !          1146:                                goto again;
        !          1147:                        } else if (status == 1) {
        !          1148:                                strcpy(buf2, s);
        !          1149:                                printf("Directory %s already exists.\n", s);
        !          1150:                                if (!yes_no("Are you sure you want %s mounted on %s", name, s))
        !          1151:                                        goto again;
        !          1152:                                s = buf;
        !          1153:                                strcpy(s, buf2);
        !          1154:                        } else {
        !          1155:                                /* Make the target directory, uid=bin, gid=bin. */
        !          1156:                                sprintf(cmd, "/bin/mkdir -r /mnt%s", s);
        !          1157:                                if (sys(cmd, S_NONFATAL))
        !          1158:                                        goto again;
        !          1159:                                sprintf(cmd, "/bin/chown bin /mnt%s", s);
        !          1160:                                sys(cmd, S_NONFATAL);
        !          1161:                                sprintf(cmd, "/bin/chgrp bin /mnt%s", s);
        !          1162:                                sys(cmd, S_NONFATAL);
        !          1163:                        }
        !          1164:                        printf("%s will be mounted on %s when COHERENT goes multiuser.\n",
        !          1165:                                name, s);
        !          1166: 
        !          1167:                        /* Change e.g. /usr/src to usr_src. */
        !          1168:                        strcpy(buf2, &s[1]);
        !          1169:                        while ((s2 = strchr(buf2, '/')) != NULL)
        !          1170:                                *s2 = '_';
        !          1171: 
        !          1172:                        /* Make link to pseudo-device, e.g. "/dev/usr_src". */
        !          1173:                        sprintf(cmd, "/mnt/dev/%s", buf2);
        !          1174:                        if (exists(cmd))
        !          1175:                                status = 1;             /* use normal name */
        !          1176:                        else {
        !          1177:                                sprintf(cmd, "/bin/ln -f /mnt%s /mnt/dev/%s",
        !          1178:                                        name, buf2);
        !          1179:                                if ((status = sys(cmd, S_NONFATAL)) == 0)
        !          1180:                                        printf(
        !          1181: "/dev/%s is linked to %s to provide a mnemonic device name.\n",
        !          1182:                                                buf2, name);
        !          1183:                        }
        !          1184: 
        !          1185:                        /* Add lines to /etc/mount.all, /etc/umount.all. */
        !          1186:                        if (status == 0)
        !          1187:                                sprintf(cmd, "/bin/echo /etc/mount /dev/%s %s >>/mnt/etc/mount.all",
        !          1188:                                        buf2, s);
        !          1189:                        else
        !          1190:                                sprintf(cmd, "/bin/echo /etc/mount %s %s >>/mnt/etc/mount.all",
        !          1191:                                        name, s);
        !          1192:                        sys(cmd, S_NONFATAL);
        !          1193:                        if (status == 0)
        !          1194:                                sprintf(cmd, "/bin/echo /etc/umount /dev/%s >>/mnt/etc/umount.all",
        !          1195:                                        buf2);
        !          1196:                        else
        !          1197:                                sprintf(cmd, "/bin/echo /etc/umount %s >>/mnt/etc/umount.all",
        !          1198:                                        name);
        !          1199:                        sys(cmd, S_NONFATAL);
        !          1200: 
        !          1201:                        /* And again, for the raw device. */
        !          1202:                        sprintf(cmd, "/mnt/dev/r%s", buf2);
        !          1203:                        if (exists(cmd))
        !          1204:                                status = 1;
        !          1205:                        else {
        !          1206:                                sprintf(cmd, "/bin/ln -f /mnt%s /mnt/dev/r%s",
        !          1207:                                        rname, buf2);
        !          1208:                                if ((status = sys(cmd, S_NONFATAL)) == 0)
        !          1209:                                        printf(
        !          1210: "/dev/r%s is linked to %s to provide a mnemonic device name.\n",
        !          1211:                                                buf2, rname);
        !          1212:                        }
        !          1213: 
        !          1214:                        /* Add raw device line to /etc/checklist. */
        !          1215:                        if (status == 0)
        !          1216:                                sprintf(cmd, "/bin/echo /dev/r%s >>/mnt/etc/checklist",
        !          1217:                                        buf2);
        !          1218:                        else
        !          1219:                                sprintf(cmd, "/bin/echo %s >>/mnt/etc/checklist",
        !          1220:                                        rname);
        !          1221:                        sys(cmd, S_NONFATAL);
        !          1222:                } else {
        !          1223:                        /* Not mounted, check using standard name. */
        !          1224:                        sprintf(cmd, "/bin/echo %s >>/mnt/etc/checklist", rname);
        !          1225:                        sys(cmd, S_NONFATAL);
        !          1226:                }
        !          1227:        }
        !          1228:        sys("/bin/echo /dev/root >>/mnt/etc/checklist", S_NONFATAL);
        !          1229: 
        !          1230:        /* Link /dev/dos if desired. */
        !          1231:        if (yes_no("Do you use both COHERENT and MS-DOS on your hard disk")) {
        !          1232:                i = get_int(0, ndevices-1, "Enter the partition number of your MS-DOS partition:");
        !          1233:                sprintf(cmd, "/bin/ln -f /mnt%s /mnt/dev/dos", devname(i, 0));
        !          1234:                if (sys(cmd, S_NONFATAL) == 0)
        !          1235:                        printf(
        !          1236: "Device name /dev/dos is now linked to %s for use as a mnemonic\n"
        !          1237: "device name.  You may use the \"dos*\" family of commands to transfer files\n"
        !          1238: "to and from the MS-DOS partition on your hard disk as well as MS-DOS floppies.\n",
        !          1239:                                devname(i, 0));
        !          1240:                printf("\n");
        !          1241:        }
        !          1242: }
        !          1243: 
        !          1244: 
        !          1245: 
        !          1246: /*
        !          1247:  * Hi there.
        !          1248:  */
        !          1249: void
        !          1250: welcome()
        !          1251: {
        !          1252:        register char *s;
        !          1253:        int i;
        !          1254: 
        !          1255:        cls(0);
        !          1256:        printf(
        !          1257: "\n\n\n\n\n\n\n\n"
        !          1258: "                              The COHERENT System\n\n"
        !          1259: "                Copyright (c) 1982, 1992 by Mark Williams Company\n\n"
        !          1260: "                     60 Revere Drive, Northbrook, IL  60062\n\n"
        !          1261: "                        708-291-6700, 708-291-6750 (FAX)\n"
        !          1262: "\n\n\n\n\n\n"
        !          1263:                );
        !          1264: 
        !          1265:        cls(1);
        !          1266:        printf(
        !          1267: "Welcome to the COHERENT operating system!\n\n"
        !          1268: "Your computer is now running COHERENT "
        !          1269: "386"
        !          1270: " from the floppy disk.\n");
        !          1271:        if (update)
        !          1272:                printf(
        !          1273: "This program will update your existing COHERENT 4.0.x system to COHERENT 4.2.0.\n"
        !          1274: "\n"
        !          1275: "Be sure to read the section on \"Updating\" in the COHERENT 386 Release\n"
        !          1276: "Notes prior to attempting this update!\n\n"
        !          1277: "Please be patient and read the instructions on the screen carefully.\n"
        !          1278: "\n"
        !          1279:                        );
        !          1280:        else
        !          1281:                printf(
        !          1282: "This program will install COHERENT onto your hard disk.\n"
        !          1283: "\n"
        !          1284: "If you are already running COHERENT on your hard disk, you must perform an\n"
        !          1285: "update rather than a full installation.  To do so, please REBOOT NOW and\n"
        !          1286: "follow the detailed update instructions in the COHERENT release notes supplied\n"
        !          1287: "with this release.\n"
        !          1288: "\n"
        !          1289: "You can interrupt installation at any time by typing <Ctrl-C>;\n"
        !          1290: "then reboot and start the installation procedure again.\n"
        !          1291: "Please be patient and read the instructions on the screen carefully.\n"
        !          1292: "\n"
        !          1293:                        );
        !          1294:        cls(1);
        !          1295:        if (update)
        !          1296:                sys("/etc/kbdinstall -u", S_NONFATAL);
        !          1297:        else
        !          1298:                sys("/etc/kbdinstall -b", S_NONFATAL);
        !          1299: 
        !          1300:        cls(1);
        !          1301:        if (!update) {
        !          1302:                printf(
        !          1303: "A card included with your distribution gives the serial number\n"
        !          1304: "of your copy of COHERENT.\n"
        !          1305:                        );
        !          1306:                for (i = 1; i <= 3; i++) {
        !          1307:                        s = get_line("Type in the serial number from the card:");
        !          1308:                        if (isserial(s))
        !          1309:                                return;
        !          1310:                        printf("Invalid serial number, please try again.\n");
        !          1311:                }
        !          1312:                fatal("invalid serial number");
        !          1313:        }
        !          1314: }
        !          1315: 
        !          1316: /*
        !          1317:  * Generate a partition table device name from a DEVICE entry name.
        !          1318:  * Return a pointer to the statically allocated name.
        !          1319:  * If flag and not one of the built-in AT device names,
        !          1320:  * the device is in /tmp/dev rather than /dev.
        !          1321:  */
        !          1322: char *
        !          1323: xname(i, flag) int i, flag;
        !          1324: {
        !          1325:        static char xname[4+4+1+NAMESIZE];      /* e.g. "/tmp/dev/at0x" */
        !          1326: 
        !          1327: #if 0
        !          1328:        sprintf(xname, "/tmp/dev/%s", devices[i].d_xname);
        !          1329:        return (flag && notflag(i,  F_ATDEV)) ? xname : xname+4;
        !          1330: #endif
        !          1331: 
        !          1332:        sprintf(xname, "/dev/%s", devices[i].d_xname);
        !          1333:        return (xname);
        !          1334: }
        !          1335: 
        !          1336: /* end of build.c */

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