[linux-lvm] lv not persistent across reboot?
Tim Pepper
tpepper at opensales.com
Mon Sep 25 23:52:40 UTC 2000
I've set up a little test machine to play with lvm. It's running RedHat 6.2
with a 2.4-test8 kernel and lvm 0.8.
I've successfully created and used an lv (with a reiserfs filesystem on top
of it). My problem is that when I reboot the lv is gone. vgscan finds
nothing. pvdisplay, lvdisplay and vgdisplay likewise show nothing. If I go
through the steps though to recreate the lvm, pvcreate seems to think
something's there and wants me to do a '-ff'. I can then continue on.
Playing around I see:
[root at qalab5 /root]# umount /mnt/nz
[root at qalab5 /root]# lvdisplay /dev/netzero/big
--- Logical volume ---
LV Name /dev/netzero/big
VG Name netzero
LV Write Access read/write
LV Status available
LV # 1
# open 0
LV Size 34.18 GB
Current LE 8750
Allocated LE 8750
Allocation next free
Read ahead sectors 120
Block device 58:0
[root at qalab5 /root]# vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- no volume groups found
[root at qalab5 /root]# lvdisplay /dev/netzero/big
lvdisplay -- ERROR: VGDA in kernel and lvmtab are NOT consistent; please run
vgscan
[root at qalab5 /root]# vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- no volume groups found
[root at qalab5 /root]# mount /mnt/nz
I can't seem to display it, but it does remount here.
I was thinking that maybe the 'vgchange -a n' shouldn't be done or perhaps I
was doing it at the wrong time (at shutdown after the filesystem on the lv was
umounted), but the above seems flakey even without vgchange in the picture.
Any ideas what could be going on? Thanks in advance for any help.
Tim
--
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* tim.pepper at opensales dot com * Venimus, Vidimus, *
* http://www.opensales.com * Dolavimus *
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