System won't boot after mirroring boot drive with disksuite

From: Dave Martini 1 (martini@mrpeabody.llnl.gov)
Date: Thu Dec 18 2003 - 12:21:15 EST


I mirrored these partitions on my boot drive to my 2nd. internal disk

/
/var

I ran the bootmirror command on the / partition only.
I manually changed the /etc/vfstab file to have /var mount
onto the /etc/md device and I commented out the /var entry
that was mounting on the /dev/dsk/c#t#d#. I did this right after
I issued the metainit commands to create the concat/strip and then
the metainit -m to attach them for var.

When I rebooted the computer /var would not mount. I received
this error

"inconsistency please run fsck manually"

When I ran fsck on the var slice I received this error

"bad super block use alternate"

When I tried to fsck using an alternate I got the same error and
nothing worked.

I had to re-install the OS.

My question is there a certain procedure for unmounting /var
from it's /dev/c#t#d# over to /dev/md? Should I have brought
the system down to single and then manually tried to remount
it onto the /dev/md? Is it ok to create the strip and mirror
on a mounted /var partition?

Any help would be great.
David Martini
LLNL
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