Graham Jenkins wrote:
Here's the problem. We perform full tar backups of our CentOS 4/5
machines in real-time at regular intervals. And when a disaster happens,
we are able to restore those backups onto virgin filesystems, make
the /dev/null, /dev/zero and /dev/console devices .. and boot the
machine.
This has worked well on standalone systems, and also on Xen 3.0.3 guests
on CentOS 4.4 machines, where each guest filesystem resides on regular
(Xen-host) real filesystem.
But there's no way we've been able to make it work for CentOS 5 Beta
guests on CentOS 5 Beta Xen hosts, where each guest disk resides in a
file.
The strategy goes something like:
* losetup -o 32256 /dev/loop0 /XenGuests/Guest1
* mkfs -t ext3 /dev/loop0
* mount -t ext3 /dev/loop0 /mnt
* cd /mnt && tar xjpf /tmp/Guest1.tbz
* for i in console null zero; do /sbin/MAKEDEV -d /mnt -x $i; done
* cd /tmp; umount /srv/vm1; losetup -d /dev/loop0
* xm create -c Guest1
And it always gets most of the way through .. then the guest dies.
What does "most of the way through" mean?
Do those files have partition tables?
Why not attach those volumes ro to another guest?
--
Cheers
John
-- spambait
1aaaaaaa@xxxxxxxxxxxxxxxx Z1aaaaaaa@xxxxxxxxxxxxxxxx
Please do not reply off-list
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
