[linux-lvm] [catch22] lvm vs reiserfs
Chris Mason
mason at suse.com
Thu Mar 22 20:10:55 UTC 2001
On Thursday, March 22, 2001 02:46:31 PM -0500 Ed Tomlinson
<tomlins at cam.org> wrote:
> Hi,
>
> I decided to really try out some of the features built into 2.4. Using a
> 2.4.2-ac20 kernel I my root on /dev/lv/root as a reiserfs filesystem. So
> far so good. Now I want to back it up. So I created a snapshot with
> lvcreate -L 50 -s -n snap /dev/lv/root. This works too. Problem happens
> when I want to mount /dev/lv/snap to back it up logically. At this point
> reiserfs wants to replay its journal.... Of course it cannot
> (snapshot=ro).
>
> How can this be resolved? Is there a way to sync root just after the lvm
> data gets updated in /etc but before the snapshot starts? How else might
> this be fixed (is it fixed already somewhere)?
Go to ftp.sistina.com, and grab 0.9.1_beta6. Apply
linux-2.4.2-VFS-lock.patch that is included in PATCHES directory after
untarring. This provides the rest of the lockfs API I coded with the LVM
guys.
-chris
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