How to fsck a mirrored ufs root fs & how to ufsrestore this fs.

From: Andres Rojas (arojasm@adexus.cl)
Date: Thu Feb 13 2003 - 14:19:26 EST


Dear Sunmanagers,

I am dealing with a "dev_seek error" occured during a root ufsdump process
and don't have any summary yet to share.

I was able to ufsdump the other volume manager mirrored filesystems rather
than root (/var and /opt) and finished cleanly. I strongly suspect of a
root filesystem corruption as I was suggested in one of the replies you
sent.

Now I'd like to count on you to perform two steps to:

1.- Correctly check the root filesystem. I.E. How to fsck a VXVM mirrored
root filesystem. I was thinking to boot from cdrom and fsck each partition
separately

2.- "What if ..." If I find too much corruption in the root filesystem? I
have a backup tape to perform a ufsrestore but, again, should I ufsrestore
each partition separately? Or should I first break the mirroring and then
resync the partitions?

Thanks in advance for your comments.

- Andres.
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