ckandreou wrote:
> Thanks for the reply. I am not an expert on Backups. I did spend a lot of 
> time reading and researching about the tape backups on Linux. Here is the 
> full error message:
>[...] 
> bzip2: I/O or other error, bailing out.  Possible reason follows.
> bzip2: Inappropriate ioctl for device
>       Input file = (stdin), output file = (stdout)
> Executing: /bin/csh -cf -cf /usr/local/BackupPC/bin/BackupPC_tarCreate -t -h 
> ccdev10 -n 369 -s \* . | /usr/bin/bzip2 >> /dev/sa0
> Error: /usr/local/BackupPC/bin/BackupPC_tarCreate, compress or split failed
> Archive failed: Error: /usr/local/BackupPC/bin/BackupPC_tarCreate, compress 
> or split failed

What kind of tape device do you have?  Do you know if it requires a 
specific block size for reads/writes?   What does 'mt status' say about 
it?  Tar normally writes in 10k blocks with an extra block of nulls at 
the end, so if tar works directly, you might emulate that by adding dd 
with obs=10k to the end of the pipeline.  Or there may be some 
better-buffering tools around for tape writing.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com


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