MAke_recovery tape - restore only one partition

[Kim Kendall]

Is there any trick (if at all possible) to restore just one logical volume from a make_recovery tape?

The lvol is a part of vg00 so it's on the tape, but I really didn't want to wipe the entire system getting it back.

[Randy Rayfield]

You should be able to "skip" forward on the tape and tar or dd it off.

[RAC_1 · Accepted solution]

I have done a selective file restore from ignite tape. IT was as follows.

Put in the tape in drive
mt -f /dev/rmt/0m fsf 1
tar -tvf /dev/rmt/0mn > /tmp/file_list.txt

Check the file_list.txt

mt /dev/rmt/0m rewind
mt -f /dev/rmt/0mn fsf 1
cd /dir
tar -xvf /dev/rmt/0mn dir/file_to_restore

Anil

[Steven E. Protter]

If possible this should be done fron the interactive insall interface. I'm not sure it can be done.

After the kernel load, on the console you are prompted to hit a key to get to the interactive interface.

This is really a job for a different kind of backup, either from fbackup or DP/omniback or a third party solution.

Ignite is really good at making a broke system fixed, it does not seem designed to restore single files or groups of files. It may be able to though.

SEP

[Kim Kendall]

Well - we ended up losing a drive and one partition (after drive replacement) was really messed up. Lost a lot of data from a single lvol, so I need to restore from tape.

I have an oracle db on the system that I take down every night and do a cold backup. So I can recover from our normal backups just fine....but...

I just found out someone else has put a sybase db on the system AND he has never shut it down or made any backups of it!!! The only time it was down was when I made the make_recovery tape (a couple months ago). And he doesn't know if he will be able to do a recovery if I just restore from our normal full/incremental backups.

I'll just try and tar that partition off the make_recovery tape.

[Patrick Wallek]

The others are correct. The only option is to restore from the make_tape_recovery tape via tar.

If you were to boot from the tape, it would rebuild and restore the ENTIRE system which is not what you want.