help with "mt" and "dd"
Bob Beaulieu
bobb at netcom.UUCP
Tue Jan 1 17:10:07 AEST 1991
I would like to be able to write multiple archives (probably tar'd files)
to a single tape. I am using a Pyramid M/120 at 4.51.
Let say I have 2 tar'd files:
file_one.tar
file_two.tar
Assuming I have the proper tape and drive shouldn't I be able to do this:
TAPE=/dev/rmt/Q120-0
mt -f $TAPE rew
dd if=file_one.tar of=$TAPE bs=5120
mt -f $TAPE append
dd if=file_two.tar of=$TAPE bs=5120
Now when I try to get data from the tape, its not working. Can someone tell
me what I'm doing wrong?
TAPE=/dev/rmt/Q120-0
mt -f $TAPE rew
dd if=$TAPE of=recovered_file_one.tar
mt -f $TAPE eof
dd if=$TAPE of=recovered_file_two.tar
I am always able to recover the last file put on tape, I seem to be writing
over the previous archive. Any help would be greatly appreciated...
Thanks
bobb
--
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