Hi guys,
I came across a weird problem with LVM after a server rebuild. I
thought you might like to know about it.
Details:
LVM version: 2.01.14 (2005-08-04)
Library version: 1.01.04 (2005-08-02)
Driver version: 4.4.0
SUSE 10 with 2.6.13-15-default kernel.
I had two PVs (/dev/hdc2 and /dev/hdd2) in a VG called vg01 on the
original system. After the rebuild I assigned the first partition of
each disk to swap (as before) and the other two partitions to a raid
mirror and an LV.
Everything worked well until I tried to issue commands like vgdisplay,
when I got messages like the following:
LV work: inconsistent LE count 16 != 32
Internal error: LV segments corrupted in work.
Volume group "vg01" doesn't exist
...which, of course, it didn't anymore. I did an strace on vgdisplay to
see where the data came from and saw that it was the first partition of
each disk. I took the swap offline and issued the command:
dd if=/dev/zero of=/dev/hdc1 count=10
...on each disk to zap out any metadata on those partitions. Now it's fine.
Any comments?
Regards,
Justin.
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