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Re: [Xen-users] Using lvm for domUs

To: Rene Purcell <rene.purcell@xxxxxxxxx>
Subject: Re: [Xen-users] Using lvm for domUs
From: Nico Kadel-Garcia <nkadel@xxxxxxxxx>
Date: Tue, 08 May 2007 11:19:36 +0100
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Rene Purcell wrote:
did you create partition in your LV ? I mean you added something like "phy:/dev/main/xen_DomU_logs,hda,w" when you've installed your distribution did you create a partition hda1 in the installation process or did you just copy some data into hda ?

what's the distro you've installed ?
I'm working with RedHat and CentOS. The installer itself insists on having a local disk device to load up and install a boot loader, and I haven't worked out the details of a pitiful excuse for documentation of the Xen config files to figure out how to gracefully over-ride the use of pygrub. The result is that I have a disk image, not a partition image or set of partition images, where an LVM partition claled /dev/XEN/xenguest1 will be seen by the guest domain as /dev/xvda, and have internal partitions of /dev/xdva1 /dev/xvda[whatever].

I *want* to be able to snapshot the LVM partitions mount the snapshots, and run backup operations against those on Dom0 instead of paying the overhead of running them from DomU.

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