[linux-lvm] Re: recovering the root partition under lvm

[Daniel Senderowicz]

Hi,

I made some progress but still cannot boot. With the gentoo disk
I ran:

vgscan
vgchange -ay

and the system re-activated the volumes /dev/VolGroup00/LogVol00
and /dev/VolGroup00/LogVol00. In fact I can now mount (within
gentoo) this volume in e.g. /tmp/foo and see the whole tree.
However if I try to boot still doesn't do it coming out with the
same kernel panic message. So I guess there is something else I
have to do to "register" this volume at boot time. If so, can
someone tell me what it is? Many thanks in advance.

Dan

>Hi,
>
>I'm new to the list and also "very" new to lvm. I need some help
>badly.
>
>I installed FC5 on a VMware machine with the host being XP. The
>installation went OK and as I said I didn't realize what the
>installation was offering me in terms of the disk configuration.
>Unfortunately at one point I stopped the virtual machine without
>going through the proper linux shutdown sequence. So now the system
>refuses the boot with a "kernel panic" message. After poking around
>a bit I realised that the root partition was installed under an
>LVM volume which I cannot access now. I booted the system with a
>live-cd (gentoo) which has all the lvm tools. I need help in the
>form of a recipe sequence on how I can fix the problem without
>wiping it irreversibly.  Below is the output from running "lvdisplay".
>Many thanks in advance.
>
>Daniel
>
>  --- Logical volume ---
>  LV Name                /dev/VolGroup00/LogVol00
>  VG Name                VolGroup00
>  LV UUID                BUx6ZG-QsMx-26hz-5iCv-0YF2-qm4B-ee0Mkw
>  LV Write Access        read/write
>  LV Status              NOT available
>  LV Size                95.00 GB
>  Current LE             3040
>  Segments               1
>  Allocation             inherit
>  Read ahead sectors     0
>   
>  --- Logical volume ---
>  LV Name                /dev/VolGroup00/LogVol01
>  VG Name                VolGroup00
>  LV UUID                R8uiEo-pCFO-MZd9-VTrr-To12-ZbGv-x5Pmbn
>  LV Write Access        read/write
>  LV Status              NOT available
>  LV Size                1.94 GB
>  Current LE             62
>  Segments               1
>  Allocation             inherit
>  Read ahead sectors     0
>
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>