Bug#691271: lvm2: Losing data when moving LV between regular HD → SSD
Laurent Bigonville
bigon at debian.org
Tue Oct 23 18:24:11 UTC 2012
Package: lvm2
Version: 2.02.95-4
Severity: important
Hi,
I'm not sure if this should be reported against the LVM package or
against the kernel.
Today I've tried to move data[0] between my old HD to my new SSD. I first
set issue_discards = 1 in the /etc/lvm/lvm.conf config file. I then used
pvmove[0] to do the migration.
After the command has succeeded, I tried to mount it again, but it
failed to find a valid filesystem.
I've hopefully been able to find the backups of the old layout and
restore it. I tried again a 2nd time and it gave me the same result.
It worked perfectly when I've reverted the issue_discards setting back to 0.
Cheers
Laurent Bigonville
[0] pvmove -n home /dev/sdb4 /dev/sda5
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.5-trunk-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_BE.utf8, LC_CTYPE=fr_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages lvm2 depends on:
ii dmsetup 2:1.02.74-4
ii initscripts 2.88dsf-32
ii libc6 2.13-35
ii libdevmapper-event1.02.1 2:1.02.74-4
ii libdevmapper1.02.1 2:1.02.74-4
ii libreadline5 5.2-12
ii libudev0 175-7
ii lsb-base 4.1+Debian7
lvm2 recommends no packages.
lvm2 suggests no packages.
-- Configuration Files:
/etc/lvm/lvm.conf changed [not included]
-- no debconf information
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