Alex Samad wrote:
On Mon, Apr 20, 2009 at 08:03:38PM -0400, Miles Fidelman wrote:
I just got badly bit by this. I had root on lvm on md (RAID 1). After
one of the component drives died, lvm came back up on top of the other
component drive - during boot from initrd - making it impossible to
rebuild the RAID array (the component drive with all the data was
already mounted).
you can change lvm to look at only md devices and not the sd* or hd* -
depends on your setup.
I am guessing that lvm looked at the raw disk's because they didn't form
a md
learned this just a little bit too late, as well as the bit about
needing to generate a new initrd
basic gist of what happened was, when I installed a new drive, and
rebuilt the mirror (from a live cd), the drive with the data was
overwritten by the new drive, sigh... good thing I made a copy first -
all I lost was time :-)
Learned my lesson though - no real reason to have root on lvm - it's now
on 3-disk RAID 1.
all ways thought this, KISS
absolutely - when I forget, is when I mess up (I find my sig line has
been particularly appropriate of late)
Miles
--
In theory, there is no difference between theory and practice.
In practice, there is. .... Yogi Berra
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