[Fedora-xen] iSCSI root

[Daniel P. Berrange]

On Wed, Feb 28, 2007 at 03:09:18PM +0000, Adrian Revill wrote:
> Hi
> Has anyone had any luck using iSCSI as the root device for a DomU.
> 
> Is it possible to specify the target address in the virt-manager 
> directly? as i have seen comments on google that it has to be mounted on 
> Dom0 first. Which kinda defeats the object of virtual storage for 
> virtual machines.

No you can't specify anything wrt to iSCSI in virt-manager. We only
support creating guests which boot from a locally attached storage
device - since pygrub has to access the disk in dom0 to etract the
boot kernel & initrd. If you want to use iSCSI, then you'll need to
create a diskless guest, and keep its kernel/initrd in dom0 rather
than using pygrub. None of the tools are able to help with such a
setup though, so its a mnual process.

> If i was doing a straight FC6 install i could select an iSCSI target as 
> the target drive.

Basically create yourself a guest config in /etc/xen, and have it
explicitly boot the kernel/init you pull from $INSTALL_URL/images/xen
to get started. Then after install copy the newer kernel / initrd back
to Dom0

Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|