On 02/10/2011 09:14 PM, Peter Flass wrote:
> I'm truly sorry to bother the developers' list with this question, but
> I've searched and can't find an ansewr that works. A system crash seems
> to have corrupted something in my fedora system. I boot to a rescue CD
> and look thru LVM. The disk (sdb) has one vg and three lv's on it.
> Call the vg vg_xxx, the lv's are lv_boot (ext3, I believe), lv_swap (no
> fs) and lv_home (ext4). I can't fsck (e2fsck) lv_home or do anything
> else with it, LVM says it's open count=1 where the open count of the
> other two lv's is zero.
>
> I can't find who has it open. /proc/mounts shows /dev/sdb1 mounted on
> /media/usb0, when I umount it (either by mount point or device) it
> disappears, but the lv still shows open, and as a result I am unable to
> do anything with it. lsof also shows nothing open that resembles this
> lv. I can inactivate the other two lvs in this vg, but not lv_home.
>
> What can I do to fix this problem?
What does "dmsetup ls --tree" look like?
E.g.:
$ sudo dmsetup ls --tree
tvg0-l0 (253:7)
ââ (7:1)
bmr_vg1-swap (253:4)
ââ (9:1)
luks-ca3de7ff-5487-4e9b-ac2b-846efc71b2e2 (253:5)
ââbmr_vg0-data (253:2)
ââ (9:2)
bmr_vg0-var (253:1)
ââ (9:2)
luks-a48853af-19d8-4965-a346-d82ae4672b66 (253:6)
ââbmr_vg0-home (253:3)
ââ (9:2)
bmr_vg0-root (253:0)
ââ (9:2)
Regards,
Bryn.
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