CentOS virt - Dec 2011 - Has anyone been able to start a Fedora 16 VM in Xen PV?

All,

I've had a heck of a time getting Fedora 16 to run as a guest VM under 
CentOS 5.7 host as a paravirtualized Xen guest.  I believe the issue has 
something to do with Fedora 16 using grub2...

When I attempt to start the VM (via xm create), I get this error:

Using config file "/etc/xen/fedora-workstation".
Traceback (most recent call last):
   File "/usr/bin/pygrub", line 686, in ?
     fs = fsimage.open(file, get_fs_offset(file))
IOError: [Errno 95] Operation not supported
No handlers could be found for logger "xend"
Error: Boot loader didn't return any data!


In my kickstart, I had to create a partition for F16 as:

part biosboot --fstype=biosboot --size=1


I didn't readily find the error when googling...

Has anyone been able to run F16 as a PV guest?  And if so, what did you do 
to make it happen?????


Thanks!!!!!!!!!!!!!



Scot P. Floess             RHCT  (Certificate Number 605010084735240)
Chief Architect FlossWare  http://sourceforge.net/projects/flossware
                            http://flossware.sourceforge.net
                            https://github.com/organizations/FlossWare

Sorry for the top post but I think it's appropriate here. The message
below was posted 20th of December last year with no response. I've now
hit the same problem.

I have CentOS 5.7 and and trying to install an F16 domU PV guest. It
seems that pygrub is failing to read the grub2 setup.

It also seems that there is a fix for this in xen-3.0.3-135.el according to:

https://bugzilla.redhat.com/show_bug.cgi?id=746602

(pygrub cannot start F16 PV guests (GPT partition) under Xen 4.1.1)

However, centos only has xen-3.0.3-132.el5_7.2 and so does not have
the pygrub fixes and I'm not even sure RH has relased xen-3.0.3-135.el
yet.

Has anyone found a way to install F16 as a domU guest on Centos 5.7?


On 20 December 2011 00:33, Scot P. Floess <sfloess at nc.rr.com>
wrote:
> All,
>
> I've had a heck of a time getting Fedora 16 to run as a guest VM under
> CentOS 5.7 host as a paravirtualized Xen guest. ?I believe the issue has
> something to do with Fedora 16 using grub2...
>
> When I attempt to start the VM (via xm create), I get this error:
>
> Using config file "/etc/xen/fedora-workstation".
> Traceback (most recent call last):
> ? File "/usr/bin/pygrub", line 686, in ?
> ? ? fs = fsimage.open(file, get_fs_offset(file))
> IOError: [Errno 95] Operation not supported
> No handlers could be found for logger "xend"
> Error: Boot loader didn't return any data!
>
>
> In my kickstart, I had to create a partition for F16 as:
>
> part biosboot --fstype=biosboot --size=1
>
>
> I didn't readily find the error when googling...
>
> Has anyone been able to run F16 as a PV guest? ?And if so, what did you do
> to make it happen?????
>
>
> Thanks!!!!!!!!!!!!!
>
>
>
> Scot P. Floess ? ? ? ? ? ? RHCT ?(Certificate Number 605010084735240)
> Chief Architect FlossWare ?http://sourceforge.net/projects/flossware
> ? ? ? ? ? ? ? ? ? ? ? ? ? ?http://flossware.sourceforge.net
> ? ? ? ? ? ? ? ? ? ? ? ? ? ?https://github.com/organizations/FlossWare
> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt at centos.org
> http://lists.centos.org/mailman/listinfo/centos-virt


-- 
Norman Gaywood, Computer Systems Officer
University of New England, Armidale,
NSW 2351, Australia

ngaywood at une.edu.au? ? ? ? ? ? Phone: +61 (0)2 6773 3337
http://mcs.une.edu.au/~norm? ? Fax:?? +61 (0)2 6773 3312

Please avoid sending me Word or Power Point attachments.
See http://www.gnu.org/philosophy/no-word-attachments.html

On Mon, Dec 19, 2011 at 08:33:22AM -0500, Scot P. Floess
wrote:
> All,
> 
> I've had a heck of a time getting Fedora 16 to run as a guest VM under 
> CentOS 5.7 host as a paravirtualized Xen guest.  I believe the issue has 
> something to do with Fedora 16 using grub2...
> 
> When I attempt to start the VM (via xm create), I get this error:
> 
> Using config file "/etc/xen/fedora-workstation".
> Traceback (most recent call last):
>    File "/usr/bin/pygrub", line 686, in ?
>      fs = fsimage.open(file, get_fs_offset(file))
> IOError: [Errno 95] Operation not supported
> No handlers could be found for logger "xend"
> Error: Boot loader didn't return any data!
> 
Just adding the info here.. Latest Xen pygrub in centos 5.8 properly supports
grub2 and Fedora 16/17 PV domUs,
with and without GPT partitioned disk.

Also there's the "nogpt" boot option for Fedora 16+ installer to
force it to create MSDOS partition table instead of GPT.

-- Pasi