Re: [Xen-users] convert hvm installation to sxp

[Alex Volkov <Alex.Volkov@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Thanks,

# loosetup -o 32256 /dev/loop0 /dev/VG_Guests/ftest
# mount -t ext3 /dev/loop0 /mnt/fedora_mount2

Works for me.

On Thu, 2006-11-02 at 10:47 -0800, Tom Brown wrote:
> the xen docs that cover hvm installations talk about using losetup to 
> specify an offset into a block device (lvm partition) to solve this. See 
> section A.3 from 
> http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html
> 
> 
> 
> On Thu, 2 Nov 2006, Alex Volkov wrote:
> 
> > Hello all.
> > I'm trying to move a domU linux install from a machine that supports VT
> > to a machine that doesn't. 
> > I already installed dom0 using VT with a graphical installer and now I'd
> > like to transform the installation into paravitrualized one. So I need
> > do copy some stuff.
> > 
> > The problem is that I can't mount root partition from dom0.
> > domU is installed on lvm partition and whenever I try to mount it I get
> > the following:
> > #mount -t ext3 /dev/VG_Guests/ftest /mnt/fedora_mount2
> > mount: wrong fs type, bad option, bad superblock on ftest,
> >     missiing codepage or other error
> >     In some cases useful info is found in yslog - try
> >     dmesg | tail or so
> > When I open the system with fdisk I see the following:
> > #fdisk /dev/VG_Guests/ftest
> > Device      Boot    Start   End     Blocks          Id      System
> > ftestp1     *       1       522     4192933+        83      Linux
> > 
> > Notice that fdisk added 'p1' to the partition name. So I guess inside of
> > an lvm partition there is another partition + boot sector or some other
> > system information. How can I access that partition from dom0?
> > 
> > I tried to install a domU on already formattted ext3 partition, but the
> > installer doesn't seem to recognize it and reformats partition into
> > this.
> > The same thing happens when I use file on a disk, created with dd<
> > instead of a lvm volume.
> > 
> > Any help apreciated.
> > 
> > Alex.
> > 
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> > 
> 
> 
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