Re: [Xen-users] pygrub on a ext2 filesystem

["Michael Paesold" <mpaesold@xxxxxx>]

Robert Hendrickx wrote:

> Hello,
>
> I installed a guest system directly on a LVM volume of my host.  I mean 
> this volume does not
> contain a partition table, but directly an ext3 fs.
>
> When I try to use pygrub on it, I receive :
>
> [...]
>    fs = fstype.open_fs(fn, offset)
>  File "/usr/lib/python/grub/fsys/ext2/__init__.py", line 35, in open_fs
>    return Ext2Fs(fn, offset = offset)
> ValueError: unable to open file
> Error: Boot loader didn't return any data!
>
> I checked the values for fn (this is well my LVM volume device driver) and 
> offset (0 as it must be
> if I understand correctly).
>
> The volume can be mounted without problem by the host, and was formatted 
> by the command "mke2fs -j
> /dev/VolGroup/guest_root".
>
> Has someone an idea ?
I receive the very same error for a partitioned image file. I have reported 
this about one or two weeks ago to this mailing list and have not yet 
received a single answer.
I don't have an idea, but I am also interested in a solution. Perhaps it 
does not work with ext3, only ext2?
Best Regards,
Michael Paesold 

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