[linux-lvm] rc4 can't take snaphots of 0.9.1_beta7 lvs
Chris Mason
mason at suse.com
Tue Oct 9 16:30:36 UTC 2001
On Tuesday, October 09, 2001 04:58:01 PM +0100 Joe Thornber
<thornber at btconnect.com> wrote:
>
> Some of the betas misaligned the logical volumes. If the volumes
> aren't page aligned the snapshot code (which uses kiovecs) cannot
> work. You have this problem. Fixing it isn't easy; you need to
> shuffle your extents up or down by the appropriate amount. No one has
> written a program to do this as of yet. Sorry.
>
Well, it worked in beta7 so it certainly should be possible in rc4. I'm
sorry if I missed this in the thread(s) where backwards compatibility was
discussed, but this does not work as a clean upgrade.
I really do appreciate the compatibility work done so far, but snapshots
don't count as a minor feature that can be ignored.
Joe, thanks for the quick response.
-chris
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