[linux-lvm] Kernel panic - not syncing: No init found. Try passing init= option to,kernel

[Heinz Mauelshagen]

On Mon, May 19, 2008 at 10:09:51AM +0200, Raquel Real López wrote:
>
> Hello!
>
> I have got  a RedHat 3 Update 6 system. The system has a hard disk It's 
> partitioned like:
> /dev/sda1 /boot Linux
> /dev/sda2 LVM
>    /dev/disk1Vol/rootvol /
>    /dev/disk1Vol/export /export
>    /dev/disk1Vol/softw /softw
>
> The system was booted and it didn't start again.
> The message was:
> vgscan  ERROR "vg_read_with_pv_and_lv(): current PV" can't get data of 
> volume group "disk1Vol" from physical volume

Any indication that the disk turned bad from before ?

Looks like it either did and your single copy of the LVM1 metadata
went south
-or-
the metadata got corrupted somehow differently.

>
> And then:
>
> Kernel panic - not syncing: No init found. Try passing init= option to
> kernel.

Expected kernel behaviour w/o root fs.

>
> If I boot with a rescue disk and I type "lvdisplay", LV UUID is 
> "000000-00....".

LVM1 didn't have UUIDs on LVs, that's why.
Can you access the VG from the rescue disk and access your data alright ?

>
> How can I recover the system?

If the disk's intact, and you better prove that by running access tests
on /dev/sda from your rescue disk, you have to restore the metadata from
backup using pvcreate+vgcfgrestore. See man vgcfgrestore for details.

>
> Thanks in advance
> I
>
> _______________________________________________
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> linux-lvm at redhat.com
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> 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                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
Storage Development                               56242 Marienrachdorf
                                                  Germany
Mauelshagen at RedHat.com                            PHONE +49  171 7803392
                                                  FAX   +49 2626 924446
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