Re: [Xen-users] create LVM-based domU using more than one volume group

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Adam Gold wrote:
> Is it possible to create a guest installation which sources its 
> partitions using more than one volume group.  For example, let's 
> saying there are two VGs on dom0, vgxen1 and vgxen2, could I define 
> the guest creation paramters such that root and swap are LVs within 
> vgxen1 and home is an LV within vgxen2?
Xen doesn't care - you just need to specify the right block device 
for each virtual disk.
> Is there an additional flag I can add to xen-create-image maybe?
Ah, now that's a different matter. I don't use tools any more for 
creating images - I just manually create block devices and either 
copy a template blank guest onto them, or us debootstrap to install a 
fresh install (all my hosts and guests are Debian).
Worst case is that you could create the guest using just one (or a 
small number of) devices, then once it's installed you can mount the 
disks in Dom0 and move stuff about - eg make a new filesystem for 
/home, mount it as (say) /mnt2, move everything from /mnt/home/ to 
/mnt2/ (assuming the guest root is mounted at /mnt), and then edit 
the guest fstab.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
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