disksuite: detaching mirror and removing second disk

Hi,
I am trying to accomplish the following, provided I start with two disks
in sync:
1. detach the submirrors on the second disk
2. remove the second disk physically
3. boot up the system again with only first disk functioning
4. later insert disk2 and resync

For step 1, I ran metadetach on all submirrors on disk2, ran metaroot to
reference the disk1 real device name (not mirror name), edited the
vfstab to reference real device names. But when I boot up (even without
removing disk2), I always get the "bad super block" error complaining
about the slice on disk1 where the database replica resides.

I have database replicas on both disk1 and disk2. Should I delete the
disk2 database replicas before booting up disk1? If so, should I do
that before or after I detach the submirrors?

Many thanks and I'll post the summary.

Gloria
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