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Annotation of researchv10dc/dist/man/v4/man8/restor.8, revision 1.1.1.1

1.1       root        1: .th RESTOR VIII 11/24/73
                      2: .sh NAME
                      3: restor \*- incremental file system restore
                      4: .sh SYNOPSIS
                      5: .bd restor
                      6: key [ arguments ]
                      7: .sh DESCRIPTION
                      8: .it Restor
                      9: is used to read magtapes dumped with the
                     10: .it dump
                     11: command.
                     12: The
                     13: .it key
                     14: argument specifies what is to be done.
                     15: .it Key
                     16: is a character from the set
                     17: .bd trxw.
                     18: .s3
                     19: .lp +5 3
                     20: \fBt\fR        The date that the tape was made and the date that
                     21: was specified in the
                     22: .it dump
                     23: command are printed.
                     24: A list of all of the i-numbers on the tape
                     25: are also given.
                     26: .s3
                     27: .lp +5 3
                     28: \fBr\fR        The tape
                     29: is read and loaded into the file system
                     30: specified in
                     31: .it arguments.
                     32: This should not be done lightly (see below).
                     33: .s3
                     34: .lp +5 3
                     35: \fBx\fR        Each file on the
                     36: tape is individually extracted into
                     37: a file whose name is the file's i-number.
                     38: If
                     39: there are
                     40: .it arguments,
                     41: they are interpreted as i-numbers and only they are
                     42: extracted.
                     43: .s3
                     44: .lp +5 3
                     45: \fBw\fR        In conjunction with the
                     46: .bd x
                     47: option,
                     48: before each file is extracted,
                     49: its i-number is typed out.
                     50: To extract this file,
                     51: you must respond with
                     52: .bd y.
                     53: .s3
                     54: .i0
                     55: The
                     56: .bd r
                     57: option should only be used to restore
                     58: a complete dump tape onto a clear file system
                     59: or to restore an incremental dump tape onto this.
                     60: Thus
                     61: .s3
                     62:        /etc/mkfs /dev/rp0 40600
                     63: .br
                     64:        restor r /dev/rp0
                     65: .s3
                     66: is a typical sequence to restore a complete dump.
                     67: Another
                     68: .it restor
                     69: can be done to get an incremental dump
                     70: in on top of this.
                     71: .s3
                     72: A
                     73: .it dump
                     74: followed by a
                     75: .it mkfs
                     76: and a
                     77: .it restor
                     78: is used to
                     79: change the size of a file system.
                     80: .sh FILES
                     81: /dev/mt0
                     82: .sh "SEE ALSO"
                     83: dump, mkfs, check, clri (VIII)
                     84: .sh DIAGNOSTICS
                     85: There are various diagnostics
                     86: involved with reading the tape and writing the disk.
                     87: There are also diagnostics if the i-list or the free list
                     88: of the file system is not large enough to hold the dump.
                     89: .sh BUGS
                     90: There is redundant information on the tape
                     91: that could be used in case of tape reading problems.
                     92: Unfortunately,
                     93: .it restor's
                     94: approach is to exit if anything is wrong.
                     95: .s3
                     96: Files that have been deleted are
                     97: not removed when incremental tapes are loaded.
                     98: It will be necessary to
                     99: .it check
                    100: the restored file system and
                    101: .it clri
                    102: any files that show up with
                    103: a 201 delta diagnostic.
                    104: .s3
                    105: The current version of
                    106: .it restor
                    107: does not free space occupied
                    108: by files that are overwritten.
                    109: Thus a
                    110: .it check
                    111: will have to be performed to reclain the missing
                    112: space.

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