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SubjectRe: lvm 0.8 to 0.9 conversion?

I've been on vacation....

Nope, no snapshots.

Well, I couldn't get my orginal volume group visible under both
lvm 0.8 and 0.9. I don't know why. So I grabbed a big empty hard disk,
created a new volume group that was visible under both, dded all the logical
volumes over to it, updated fstab and removed the offending vg. I've yet to
recreate the original vg, copy stuff back and remove the new drive.
I should point out that the offending vg was relatively ancient, I think I
created it when 0.7 was king under some something like 2.2.14. Now I'm
running 2.4.0-ac4 and all works well.

> Date: Wed, 27 Dec 2000 20:53:36 +0100
> From: Andrea Arcangeli <>
> Cc:
> Content-Type: text/plain; charset=us-ascii
> Content-Disposition: inline
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> On Sat, Dec 23, 2000 at 04:29:19PM -0500, Todd M. Roy wrote:
> > group is visible, and you just told meit should be, then I can just
> > copy volumes over under test13-pre3 and destroy and recreate the
> > first volume group.
> Is it possible you had a snapshot in the volume group when you started
> lvm 0.9 the first time? snapshots are not persistent on pre3 so it doesn't make
> sense to left them before rebooting the kernel, and maybe lvmtools 0.9 doesn't
> cope correctly with non persistent snapshot created by 0.8 driver (trivial to
> temporarly workaround, just delete any snapshot volume before using 0.9 lvm :).
> Andrea
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