Xen users - Jul 2006 - Migration from 2.0.7 to 3.0.2, ReiserFS and (possibly) udev

Hello,

i upgraded a xenserver from version 2.0.7 to 3.0.2 and the OS from
Debian Sarge to Debian Etch.
I now use the 2.6.16-xen Kernel (for Dom0 and DomUs) with all required
modules in an initramfs.

The Dom0-Partitions run on LVM (all but /boot) and use ReiserFS.

When I try to create DomUs with my old filebased images from 2.0.7, only
those with ext3 work (e.g. fedora). Debian images with reiserfs  break
on boot with

("Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(8,1)").

It seems to me that ReiserFS is unknown in DomU.

I verified this by creating a testimage with debootstrap, first on a
ReiserFS formated file (which didn''t boot) and then the same on a Ext3
formated file (which did).

Has someone experienced the same problems? And even better, solved them?
Has this maybe something to do with udev and initramfs?

Thanks for help,

Holger


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Hi,

Your kernel config has support for Reiserfs? If it haven`t reiserfs support
the system does not go to start. If the support it is compiled as module
you need the ramdisk = ''/initdr.img....'' line. If the support
it isn`t
compiled as module, the system must start.

2006/7/19, FreiNet Technik <xen-users@freinet.de>:
>
> Hello,
>
> i upgraded a xenserver from version 2.0.7 to 3.0.2 and the OS from
> Debian Sarge to Debian Etch.
> I now use the 2.6.16-xen Kernel (for Dom0 and DomUs) with all required
> modules in an initramfs.
>
> The Dom0-Partitions run on LVM (all but /boot) and use ReiserFS.
>
> When I try to create DomUs with my old filebased images from 2.0.7, only
> those with ext3 work (e.g. fedora). Debian images with reiserfs  break
> on boot with
>
> ("Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(8,1)").
>
> It seems to me that ReiserFS is unknown in DomU.
>
> I verified this by creating a testimage with debootstrap, first on a
> ReiserFS formated file (which didn''t boot) and then the same on a
Ext3
> formated file (which did).
>
> Has someone experienced the same problems? And even better, solved them?
> Has this maybe something to do with udev and initramfs?
>
> Thanks for help,
>
> Holger
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>

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Javier Terceiro wrote:
> Hi,
>
> Your kernel config has support for Reiserfs? If it haven`t reiserfs
> support the system does not go to start. If the support it is compiled
> as module  you need the ramdisk = ''/initdr.img....'' line.
If the
> support it isn`t compiled as module, the system must start.
>
Great, the ramdisk did it.

Thanks a lot.

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