Multivolume dumps via dump | compress | dd
Jeff Hayward
jeff at nic.the.net
Thu Mar 1 03:14:25 AEST 1990
I'm trying to save some space and time by compressing my dumps before writing
them to tk50 on my DS3100 running UWS 2.1. I use
dump 0ucf - /usr | compress | dd of=/dev/rmt0h obs=60k
to write a dump, which seems to work fine. dd prompts me to replace cartridges
when appropriate, and dump seems happy.
A restore of the form
dd if=/dev/rmt0h ibs=60k | uncompress | restore if -
works, until the end of the first tape is reached. I then get "read: i/o
error" from restore (I think). dd just tells me its usual records in/out
count. I've tried using the files=n argument to dd, to no avail. Can anyone
shed light on what I'm doing wrong?
Jeff Hayward
The University of Texas System jah at mojo.ots.utexas.edu
Office of Telecommunication Services +1 512 471 2427
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