First you need to access that file like a loopback device
losetup -f /var/lib/xen/images/disk.img
that will create a device like /dev/loop0
If you run "losetup -a" you'll get a list of the loopback devices that are configured.
Lets presume that it was /dev/loop0 that was created.
You have a device now but you don't have partitions yet.
You can do fdisk -l /dev/loop0 to see what partitions are in the loopback device but you can't access them yet.
You need to use kpartx to add the partition mappings.
kpartx -a /dev/loop0
This will add partition mappings under /dev/mapper.
You should now be able to access these like regular partitions.
If you used LVM during your install then you'll need to do a vgscan and a vgchange -ay to activate the volume groups.
Now you can mount the partitions/logical volumes.
At this point I hope you didn't use the default partitioning for both the guest and the host, otherwise you'll have duplicate VG names. There is a way to rename volume groups but that's a story for another day .....
On Tue, 2006-12-26 at 19:28 +1100, Phil Rhoades wrote:
People, Firstly, congratulations on some nice work! - I could not get inter-guest or host-guest networking on FC5 but it started working immediately on FC6 - thanks! On a FC6 host I have created a FC6 guest minimal install (everything checked off except for text networking) in a 1.5GB image file. What is the format of this image? Is it possible to somehow use a loopback switch to mount it like iso9660? - I want to be able to make a copy of the image file; in the image, edit the /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-eth0 files; add an appropriate /etc/xen config file and then be able to boot a second guest. Is this possible somehow? Thanks, Phil.
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