[linux-lvm] vgchange -- ERROR "parameter error"

[linux-lvm] vgchange -- ERROR "parameter error"

[Gayatri Prabhu]

Hi,

I read a few emails on this mailing list with the same
problem. I'm using LVM version 1.0.1-rc4, kernel
2.4.7, Redhat 7.2. I've been unable to activate a VG
since yesterday. I've been trying to recover data from
the VG using  the "pvcreate, vgcfgrestore, vgscan,
vgchange" procedure given as a solution to this
problem. I still get the following error:
vgchange -- ERROR "parameter error" setting up
snapshot copy on write exception table for
"/dev/vgtest/snap.02"

I've tried using all the old config files for this VG
in /etc/lvmconf, but even the oldest file has the
"messy" snapshot since the snapshot creation was being
done as part of an hourly cron job. 

I would appreciate it if you could let me know whether
there is any other way to still recover the data on
the disk ? Also, is there a later version of LVM in
which this problem has been fixed ?

Thanks,
Gayatri


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Re: [linux-lvm] vgchange -- ERROR "parameter error"

[Heinz J . Mauelshagen]

Gayatri,

this looks like a bad snapshot exception table.
Install LVM 1.0.6 which is able to drop the bad snapshot.

On Fri, Nov 01, 2002 at 12:16:01PM -0800, Gayatri Prabhu wrote:
> Hi,
> 
> I read a few emails on this mailing list with the same
> problem. I'm using LVM version 1.0.1-rc4, kernel
> 2.4.7, Redhat 7.2. I've been unable to activate a VG
> since yesterday. I've been trying to recover data from
> the VG using  the "pvcreate, vgcfgrestore, vgscan,
> vgchange" procedure given as a solution to this
> problem. I still get the following error:
> vgchange -- ERROR "parameter error" setting up
> snapshot copy on write exception table for
> "/dev/vgtest/snap.02"
> 
> I've tried using all the old config files for this VG
> in /etc/lvmconf, but even the oldest file has the
> "messy" snapshot since the snapshot creation was being
> done as part of an hourly cron job. 
> 
> I would appreciate it if you could let me know whether
> there is any other way to still recover the data on
> the disk ? Also, is there a later version of LVM in
> which this problem has been fixed ?
> 
> Thanks,
> Gayatri
> 
> 
> __________________________________________________
> Do you Yahoo!?
> HotJobs - Search new jobs daily now
> http://hotjobs.yahoo.com/
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

-- 

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
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