[linux-lvm] Urgent, Please help LVM-krash

Heinz J . Mauelshagen mauelshagen at sistina.com
Mon Dec 17 05:22:02 UTC 2001

On Thu, Dec 13, 2001 at 02:37:04PM +0100, Erik Bågfors wrote:
> Hi all!
> Yesterday I krashed my lvm.  This is the first time I'm having real
> problems with it.
> This is what happened.
> I was going to add a new lv and used the lvcreate-command as usual. 
> This time I forgot the -n switch and when I realized that I hit ctrl-c..
> BAD idea!


that's actually starneg, because the tools intercept ctrl-c and the like :-(

> Now my vg is gone.  I can't get it back whatever I try.  Any help would
> be VERY appreciated.
> A vgscan just sais "no volume groups found" or something like that. 
> doing a pvdisplay on the pv's in my vg gives me that they should be in
> "diskvg" (which is correct).  I've tried doing vgcfgrestore from the
> backups in /etc/lvmconf but that doesn't help.  vgscan still doesn't
> find it.

Did you run "pvcreate -ff" on all of your PVs belonging to diskvg *before*
you run vgcfgrestore on all of them?  vgscan afetrwards.

> I looked at the HOWTO and found a program named uuid_fixer that looked
> like it could solve the problem but it died with an "illegal
> instruction" regardless of if I used the precompiled version or compiled
> it myself.
> This is on a mandrake 8.1-box with lvm, xfs, reiserfs and devfs so there
> are alot of things to think about.
> When doing stuff I did the following first:
>  reboot into single user, remount / rw, mount /proc, restore some
> standar-stuff into /dev, and start devfsd
> After that I tried vgcfgrestore, vgscan, uuid_fixer and just about
> everything I could think or.

I think it was just the lack of pvcreate before vgcfgrestore.

> Please please please help me.  Can anyone solve this.  There are over 60
> GB of stuff on this computer and it needs to work TODAY :(
> /Erik
> -- 
> Erik Bågfors               | http://www.ardendo.se/
> Erik.Bagfors at ardendo.se    | GSM +46 733 279 273
> fingerprint: 6666 A85B 95D3 D26B 296B 6C60 4F32 2C0B 693D 6E32
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Heinz    -- The LVM Guy --

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


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

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