[ILUG] cpio restore problem

[Tony Groves]

I create a backup tape:
   find $BACKUPDIRS | sort | cpio -oBH newc >/dev/st0 2>$LOGPATH

Then I catalogue the tape:
   cpio -tvB </dev/st0 >$TAPECATPATH 2>$LOGPATH
which includes in its output:
   -rw-rw----   1 mysql    mysql        8694 Dec 24 12:18 
/var/lib/mysql/dfs/dockets.frm
   -rw-rw----   1 mysql    mysql    2970642704 Mar 16 16:54 
/var/lib/mysql/dfs/dockets.MYD
   -rw-rw----   1 mysql    mysql     1289216 Mar 16 18:02 
/var/lib/mysql/dfs/dockets.MYI

All looks fine.

Then I try to restore those 3 files:
   cpio -iudBv -H newc "*dockets*" </dev/st0
but I get nothing except eventually an end-of-tape message. I've also
tried several variations on the above command, and previous tapes with
the same format, but nothing works.

Luckily, I had only recently switched from using tar-format tapes,
so I was able to restore from the last tar tape and the subsequent
incremental network backups. However, I would really like to get cpio
working properly, as it is claimed to be more fault-tolerant than tar.

Can anybody provide any suggestions?

Thanks a lot.

Tony.