Re: [Xen-users] Howto access the guest filesystem under LVM ?

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Pascal wrote:
> > On Sun, Jun 17, 2007 at 08:17:58PM +0200, Pascal wrote:
> >   
> > > I have created a guest using virt-install.
> > > On the dom0 we have created a LogicalVolume and used it to install the guest
> > >
> > > We need to copy all the contents of the guest, so we'd like to access 
> > > the guest filesystem from dom0
> > > Tried something like :
> > > mount -o loop /dev/xenvps/mylv /mnt
> > >
> > > But it doesn't work
> > >     
> > Omit "-o loop". /dev/xenvps/mylv is a (symlink-to) a real block device
> > file, so there's no need for loop.
> >
> > Keep in mind that having it mounted R/W in guest and R/W or R/O in dom0
> > at the same time is asking for trouble.
> >
> >   
> Thanks
>
> Does it mean I should first shutdown the guest ?
>
> and maybe do
> mount /dev/mapper/xenvps-centos45 /mnt
>
> (loke this it is not a symlink)
> Pascal
In general, yes. Shut down the guest, to avoid the file system changing 
under you. Or if you're using LVM and just want to look at it, simply 
LVM snapshot it and look at the snapshot.
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