.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.\" @(#)dump.8 8.3 (Berkeley) 5/1/95
-.\" $Id: dump.8.in,v 1.1 1999/10/11 13:08:07 stelian Exp $
+.\" $Id: dump.8.in,v 1.16 2000/08/19 23:48:10 stelian Exp $
.\"
.Dd __DATE__
.Dt DUMP 8
-.Os "__VERSION__"
+.Os "dump __VERSION__"
.Sh NAME
.Nm dump
.Nd ext2 filesystem backup
.Sh SYNOPSIS
.Nm dump
-.Op Fl 0123456789acknu
+.Op Fl 0123456789ackMnSu
.Op Fl B Ar records
.Op Fl b Ar blocksize
.Op Fl d Ar density
+.Op Fl e Ar inode number
.Op Fl f Ar file
+.Op Fl F Ar script
.Op Fl h Ar level
.Op Fl L Ar label
.Op Fl s Ar feet
.Op Fl T Ar date
-.Ar filesystem
-.Nm dump
-.Op Fl 0123456789acknu
-.Op Fl B Ar records
-.Op Fl b Ar blocksize
-.Op Fl d Ar density
-.Op Fl f Ar file
-.Op Fl h Ar level
-.Op Fl L Ar label
-.Op Fl s Ar feet
-.Op Fl T Ar date
-.Ar directory
+.Ar file-to-dump
.Nm dump
.Op Fl W Li \&| Fl w
.Pp
By default, the same output file name is used for each volume
after prompting the operator to change media.
.Pp
+.Ar file-to-dump
+is either a mountpoint of a filesystem
+or a directory to be backed up as a subset of a filesystem.
+In the former case, either the path to a mounted filesystem
+or the device of an unmounted filesystem can be used.
+In the latter case, certain restrictions are placed on the backup:
+.Fl u
+is not allowed and the only dump level that is supported is
+.Fl 0 .
+.Pp
The following options are supported by
.Nm Ns :
.Bl -tag -width Ds
.Nm dump
to
copy all files new or modified since the
-last dump of the same or lower level.
+last dump of a lower level.
The default level is 9.
.It Fl B Ar records
The number of 1 KB blocks per volume.
Therefore
.Nm dump
will constrain writes to MAXBSIZE.
+The default blocksize is 10.
.It Fl c
Change the defaults for use with a cartridge tape drive, with a density
of 8000 bpi, and a length of 1700 feet.
+.It Fl e Ar inode
+Exclude
+.Ar inode
+from the dump (you can use
+.Ar stat
+to find the inode number for a file or directory).
.It Fl h Ar level
Honor the user
.Dq nodump
.Pa /etc/rmt ;
this can be overridden by the environment variable
.Ev RMT .
+.It Fl F Ar script
+Run script at the end of each tape. The device name and the
+current volume number are passed on the command line.
+The script must return 0 if
+.Nm
+should continue without asking the user to change the tape, 1 if
+.Nm
+dump should continue but ask the user to change the tape.
+Any other exit code will cause
+.Nm
+to abort.
+For security reasons,
+.Nm
+reverts back to the real user ID and the real group ID before
+running the script.
.It Fl k
Use Kerberos authentication to talk to remote tape servers. (Only
available if this option was enabled when
to be at most LBLSIZE (currently 16) characters, which must include
the terminating
.Ql \e0 .
+.It Fl M
+Enable the multi-volume feature. The name specified with
+.Fl f
+is treated as a prefix and
+.Nm
+writes in sequence to <prefix>001, <prefix>002 etc. This can be
+useful when dumping to files on an ext2 partition, in order to bypass
+the 2GB file size limitation.
.It Fl n
Whenever
.Nm
It is recommended to be a bit conservative on this option.
The default tape length is 2300 feet.
.ne 1i
+.It Fl S
+Size estimate. Determine the amount of space
+that is needed to perform the dump without
+actually doing it, and display the estimated
+number of bytes it will take. This is useful
+with incremental dumps to determine how many
+volumes of media will be needed.
.It Fl T Ar date
Use the specified date as the starting time for the dump
instead of the time determined from looking in
will be used to determine the pathname of the remote
.Xr rmt 8
program.
+.It Ev RSH
+.Nm Dump
+uses the contents of this variable to determine the name of the
+remote shell command to use when doing remote backups (rsh, ssh etc.).
+If this variable is not set,
+.Xr rcmd 3
+will be used, but only root will be able to do remote backups.
.Sh FILES
.Bl -tag -width __DUMPDATES__ -compact
.It Pa /dev/st0
.Pp
.Nm Dump
cannot do remote backups without being run as root, due to its
-security history. This will be fixed in a later version of
-.Bx Free .
+security history.
Presently, it works if you set it setuid (like it used to be), but this
-might constitute a security risk.
+might constitute a security risk. Note that you can set RSH to use
+a remote shell program instead.
.Sh AUTHOR
The
.Nm dump/restore
.Sh AVAILABILITY
The
.Nm dump/restore
-backup suit is available for anonymous ftp from tsx-11.mit.edu
-in /pub/linux/ALPHA/ext2fs (development versions) or
-/pub/linux/packages/ext2fs (stable versions).
-.Pp
-An alternate downloading location is http://perso.cybercable.fr/pop/dump.
+backup suit is available from
+.br
+http://dump.sourceforge.net
.Sh HISTORY
A
.Nm