[Fedora-xen] Document the lomount utility from Xen

[Ignacio Verona]

Hi Aleksander,

which is the size of the image you are mounting? Mine is 31Gb and I get 
the message:

lomount: File too large
Partition 1 was not found in autillo1.

Have you expercienced any problem like that?

Thanks,
Ignacio.


Aleksander Adamowski escribió:
> Hi!
>
> When trying to repair a messed up guest domain's disk image in FC5, 
> I've discovered a very usefule but undocumented utility from the Xen RPM:
>
> # lomount
> You must specify -diskimage and -partition
> ex. lomount -t fs-type -diskimage hda.img -partition 1 /mnt
>
> Since the disk images created with xenguest-install.py are images of 
> whole disk (including the partition table, MBR etc.), they can't 
> simply be mounted like in the Xen official documentation.
>
> This tool parses the partition table and allows to mount a chosen 
> partition from such a disk image. It automatically computes the needed 
> "offset" mount option.
>
> Using lomount I have successfully repaired the guest domain.
>
> I think lomount should be documented in the Wiki 
> (http://fedoraproject.org/wiki/FedoraXenQuickstartFC5).
>
> If you want, I can write that hint over there myself - just give me 
> edit permissions in the Wiki (user: AleksanderAdamowski).
>