Problem comparing tape with system

[Guido Leenders]

Hi, 

I've used tar 1.13 to create tar-archives on magnetic tape (DLT). Backup
is running 
fine since weeks, but the compare never succeeds, whatever I try.

I backup using:

# tar -b 256 --create --sparse --totals --verbose --verbose \
  --no-recursion --file=/dev/rmt0h --files-from FILE

When doing a compare using:

# cd /
# tar --no-recursion --compare --verbose --verbose --file /dev/rmt0h -b
256 --sparse
drwxr-xr-x root/system       0 2001-06-18 08:10 
: File does not exist
drwx------ root/system       0 2000-10-10 14:36 .tags/
-rw-r----- root/operator 647168 2001-01-22 09:11 quota.user
quota.user: Data differs
tar: Skipping to next file header
# ($?=1)

tar stops after the skipping to next file header but does not 
check the rest of the tape archive.

When doing a comparing from a different working directory:

# cd /tmp
# tar --no-recursion --compare --verbose --verbose --file /dev/rmt0h -b
256 --sparse

LOTS OF 'File does not exist' errors, but tar goes through the whole 
tape archive before ending.

When doing a list:

# tar --no-recursion --list --verbose --verbose --file /dev/rmt0h -b 256
--sparse

There is the normal output, no problems. Contents have also shown to be
restorable.

I would expect that the --compare would compare the tape archive, but
for some reason it
ends after the first difference. Is there a method to make sure it
compares the whole tape
instead of only the first file?

Thanks for all replies,

Guido Leenders

 
--
Guido Leenders
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