Re: [linux-lvm] vgchange -a y /dev/System fails

From: "Heinz J . Mauelshagen" <mauelshagen@sistina.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] vgchange -a y /dev/System fails
Date: Mon Jan 28 03:47:01 2002	[thread overview]
Message-ID: <20020128104258.A24830@sistina.com> (raw)
In-Reply-To: <20020125233533.GK26045@merlins.org>; from marc_lvm@merlins.org on Fri, Jan 25, 2002 at 03:35:33PM -0800

Marc,

I am afraid you need to figure out the last metadata backup in /etc/lvmconf/
which *doesn't* contain the flaky snapshot(s).

You didn't mention the name of you VG so let's say it was 'A'.

You can do that with "vgcfgrestore -f /etc/lvmconf/A.conf.1.old -n A -ll".
Replace the '1' in the metadata backup filename above with 2, 3 and so on
(you should have a default of up to 9).
After you found one (say #3), remember all you PVs belonging to that VG and run

pvcreate -yff /dev/AllYourPVsBelongingToA
for pv in /dev/AllYourPVsBelongingToA
do
   vgcfgrestore -f /etc/lvmconf/A.conf.3.old -n A $pv
done
vgscan
vgchange -ay A

That should be it (crossing fingers ;-)

On Fri, Jan 25, 2002 at 03:35:33PM -0800, Marc MERLIN wrote:
> It fails and says:
> parameter error setting up snapshot copy on write exception
> 
> So yes, I have  snapshots in there, but I can't delete  the snapshots if the
> volume isn't active, and I can't activate the volume because of a snapshot.
> 
> To make things worse, /dev/System contains /usr and /var.
> 
> The snapshots were created with 1.0.1rc4 on 2.4.14 and I now run 2.4.17 with
> 1.0.1rc4-ish
> 
> What's the magic override I need to use to make the volume active again?
> 
> Thanks
> Marc
> -- 
> Microsoft is to operating systems & security ....
>                                       .... what McDonalds is to gourmet cooking
>   
> Home page: http://marc.merlins.org/   |   Finger marc_f@merlins.org for PGP key
> 
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-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
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