Return to reboot.8 CVS log

Up to [Power 6/32 Unix Tahoe 4.2BSD] / cci / usr / src / man / man8

Annotation of cci/usr/src/man/man8/reboot.8, revision 1.1

1.1     ! root        1: .TH REBOOT 8 "10 May 1981"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: reboot \- OSPower bootstrapping procedures
        !             5: .SH SYNOPSIS
        !             6: .B /etc/reboot
        !             7: [
        !             8: .B \-n
        !             9: ] [
        !            10: .B \-q
        !            11: ]
        !            12: .SH DESCRIPTION
        !            13: .PP
        !            14: OSPower is started by placing it in memory
        !            15: at location 0x800 and transferring to 0x800.
        !            16: Since the system is not reenterable,
        !            17: it is necessary to read it in from disk or tape
        !            18: each time it is to be bootstrapped.
        !            19: .PP
        !            20: .B Rebooting a running system.
        !            21: When a OSPower is running and a reboot is desired,
        !            22: .IR shutdown (8)
        !            23: is normally used.
        !            24: If there are no users then
        !            25: .B /etc/reboot
        !            26: can be used.
        !            27: Reboot causes the disks to be synced, and then a multi-user
        !            28: reboot (as described below) is initiated.  This causes a system to be
        !            29: booted and an automatic disk check to be performed.  If all this succeeds
        !            30: without incident, the system is then brought up for many users.
        !            31: .PP
        !            32: Options to reboot are:
        !            33: .TP
        !            34: .B \-n
        !            35: option avoids the sync.  It can be used if a disk or the processor
        !            36: is on fire. 
        !            37: .TP
        !            38: .B \-q
        !            39: reboots quickly and ungracefully, without shutting down running
        !            40: processes first.
        !            41: .PP
        !            42: .B "Power fail and crash recovery."
        !            43: Normally, the system will attempt to reboot itself at power-up or after crashes.
        !            44: An automatic consistency check of the file systems will be performed
        !            45: then and unless this fails the system will resume multi-user operations.
        !            46: .PP
        !            47: .B Cold starts.
        !            48: .br
        !            49: These are processor type dependent.
        !            50: On the Power 6/32, the front panel PROM takes care of initialization
        !            51: and power-up confidence checks,
        !            52: then tries to load and execute
        !            53: .I /boot;
        !            54: if that fails, a boot from the console is still possible.
        !            55: .PP
        !            56: Giving the command
        !            57: .IP
        !            58: >fb.
        !            59: or
        !            60: .IP
        !            61: >fr /boot
        !            62: .LP
        !            63: Would boot the system from (e.g.) an FSD and run the automatic consistency
        !            64: check as described in
        !            65: .IR fsck (8).
        !            66: (Note that it may
        !            67: be necessary to type `<return>~h'
        !            68: to gain the attention of the panel processor before getting the > prompt.)
        !            69: .PP
        !            70: To boot with boot flags you
        !            71: may specify
        !            72: .IP
        !            73: >gb \fIn\fR
        !            74: .LP
        !            75: where, giving a \fIn\fR of 1 causes the boot program
        !            76: to ask for the name of the system to be bootstrapped,
        !            77: giving a \fIn\fR of 2 causes the boot program to come up single
        !            78: user, and a \fIn\fR of 3 causes both of these actions to occur.
        !            79: .PP
        !            80: The 
        !            81: .I boot
        !            82: program
        !            83: finds the corresponding file on the given device, loads that file
        !            84: into memory location 0x800, and starts the program at the entry address
        !            85: specified in the program header (after clearing off the high bits
        !            86: of the specified entry address.)
        !            87: Normal line editing characters can be used in specifying the pathname.
        !            88: .PP
        !            89: A device specification has the following form:
        !            90: .IP
        !            91: device(unit, minor)
        !            92: .PP
        !            93: where
        !            94: .I device
        !            95: is the type of the device to be searched,
        !            96: .I unit
        !            97: is the unit number of the device,
        !            98: and
        !            99: .I minor
        !           100: is the minor device index.
        !           101: The following list of supported devices may vary from installation to
        !           102: installation:
        !           103: .ta 5 10
        !           104: .nf
        !           105:        fsd     FSD disk drive
        !           106:        xmd     SMD disk drive
        !           107:        xsd     XFSD disk drive
        !           108:        cyp     CYPHER tape drive
        !           109: .fi
        !           110: .PP
        !           111: For tapes, the minor device number gives a file offset.
        !           112: .SH FILES
        !           113: .ta \w'/vmunix   'u
        !           114: /vmunix        system code
        !           115: .br
        !           116: /boot  system bootstrap
        !           117: .br
        !           118: /poc   power-up confidence tests
        !           119: .br
        !           120: /wcs   microcode writable control storage
        !           121: .SH "SEE ALSO"
        !           122: crash(8V),
        !           123: fsck(8),
        !           124: init(8),
        !           125: rc(8),
        !           126: shutdown(8),
        !           127: halt(8),
        !           128: newfs(8)
        !           129: .br
        !           130: Console Processor handbook

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.