docs: Added UNIX V10 Manuals

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+.th RESTOR VIII 11/24/73
+.sh NAME
+restor \*- incremental file system restore
+.sh SYNOPSIS
+.bd restor
+key [ arguments ]
+.sh DESCRIPTION
+.it Restor
+is used to read magtapes dumped with the
+.it dump
+command.
+The
+.it key
+argument specifies what is to be done.
+.it Key
+is a character from the set
+.bd trxw.
+.s3
+.lp +5 3
+\fBt\fR	The date that the tape was made and the date that
+was specified in the
+.it dump
+command are printed.
+A list of all of the i-numbers on the tape
+are also given.
+.s3
+.lp +5 3
+\fBr\fR	The tape
+is read and loaded into the file system
+specified in
+.it arguments.
+This should not be done lightly (see below).
+.s3
+.lp +5 3
+\fBx\fR	Each file on the
+tape is individually extracted into
+a file whose name is the file's i-number.
+If
+there are
+.it arguments,
+they are interpreted as i-numbers and only they are
+extracted.
+.s3
+.lp +5 3
+\fBw\fR	In conjunction with the
+.bd x
+option,
+before each file is extracted,
+its i-number is typed out.
+To extract this file,
+you must respond with
+.bd y.
+.s3
+.i0
+The
+.bd r
+option should only be used to restore
+a complete dump tape onto a clear file system
+or to restore an incremental dump tape onto this.
+Thus
+.s3
+	/etc/mkfs /dev/rp0 40600
+.br
+	restor r /dev/rp0
+.s3
+is a typical sequence to restore a complete dump.
+Another
+.it restor
+can be done to get an incremental dump
+in on top of this.
+.s3
+A
+.it dump
+followed by a
+.it mkfs
+and a
+.it restor
+is used to
+change the size of a file system.
+.sh FILES
+/dev/mt0
+.sh "SEE ALSO"
+dump, mkfs, check, clri (VIII)
+.sh DIAGNOSTICS
+There are various diagnostics
+involved with reading the tape and writing the disk.
+There are also diagnostics if the i-list or the free list
+of the file system is not large enough to hold the dump.
+.sh BUGS
+There is redundant information on the tape
+that could be used in case of tape reading problems.
+Unfortunately,
+.it restor's
+approach is to exit if anything is wrong.
+.s3
+Files that have been deleted are
+not removed when incremental tapes are loaded.
+It will be necessary to
+.it check
+the restored file system and
+.it clri
+any files that show up with
+a 201 delta diagnostic.
+.s3
+The current version of
+.it restor
+does not free space occupied
+by files that are overwritten.
+Thus a
+.it check
+will have to be performed to reclain the missing
+space.