[comp.unix.aux] dump arguments

ira@iear.arts.rpi.edu (Ira Lee) (03/20/91)

I'm trying to use dump.bsd to backup my directories to Apples 40 meg
cartrige tape drive. Anyone know what arguments to dump to use?

I've tried
dump.bsd 0cu ...

To back up over 40 megs
but with no luck...It looks like it is running to the end of the tape
before asking me to put in the next tape.  I've tried various
combinations of blocking factors and tape sizes (in feet,blocks,K) but
with no luck.

Has anybody out there successfully backed up their systems with
dump.bsd on AUX 2/0?

Thanks in advance
ira

-- 
bye
Ira Lee
iradx7@pawl.rpi.edu			ira@iear.arts.rpi.edu
(518) 276-IRAS				(718) 279-4814

gentner@Apple.COM (Don Gentner) (03/21/91)

In article <9R-={1@rpi.edu>, ira@iear.arts.rpi.edu (Ira Lee) writes:
> I'm trying to use dump.bsd to backup my directories to Apples 40 meg
> cartrige tape drive. Anyone know what arguments to dump to use?

In A/UX 2.0, the "c" option to dump.bsd did not work properly, and it
was necessary to specify the media size.  I used the following command
to do a complete (level 0) backup.

/etc/dump.bsd 0cubsf 16 37m /dev/rmt/tc1 /dev/dsk/c0d0s0

The meaning of the options is:
0	do a level 0 dump (change as needed)
c	set for Apple Tape Backup 40SC
u	write dump date to /etc/dumpdates
b 16	use blocking factor of 16k
s 37m	media size is 37 megabytes

/dev/rmt/tc1  is the tape device (replace 1 with correct SCSI id)
/dev/dsk/c0d0s0 is the file system being backed up (change as needed)

The "c" option is fixed in A/UX 2.0.1, so you can use a simpler
command, like the following:

/etc/dump.bsd 0cuf /dev/rmt/tc1 /dev/dsk/c0d0s0

                        Don
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Don Gentner			email: gentner@apple.com
Apple Computer			telephone: 408 974-5198
10440 Bubb Rd, MS: 58A		fax: 408 974-0892
Cupertino, CA 95014		AppleLink: GENTNER