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Re: [Xen-devel] Re: Virtualization Test Day for F16 and Xen

On 09/16/2011 01:43 AM, Konrad Rzeszutek Wilk wrote:
> On Thu, Sep 15, 2011 at 03:38:09PM -0700, Adam Williamson wrote:
>> On Thu, 2011-09-15 at 10:10 -0500, W. Michael Petullo wrote:
>>>>> There are known bugs in FC15/FC16 that have been filled some time ago that
>>>>> folks will sadly run into: 728775, 658387  and 668063
>>>>> Fortunatly the bugs have patches attached and the files to be modified 
>>>>> are shell scripts.
>>>> Yep, links here:
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=728775
>>> The Fedora update system reports this is fixed in grub2-1.99-6.fc16.
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=658387
>>> Peter Jones submitted a new grubby package yesterday. This seems to fix
>>> bug #658387 (i.e., new-kernel-pkg creates a Dom0-style grub.cfg entry
>>> if /etc/sysconfig/kernel contains "HYPERVISOR=/boot/xen.gz").
>>> I have not yet tested this on Fedora 16. However, I did test on Fedora
>>> 15. In this case, bug #668063 is still in effect. That is, grubby creates
>>> most of a GRUB record, but the "module initramfs-..." entry is missing.
>>> Has anyone yet tested this new grubby package on Fedora 16 yet? Does
>>> using GRUB 2 makes #668063 irrelevant?
> I believe so (the irrelevant part). But the functionality part of grubby 
> picking
> up /etc/sysconfig/kernel and making that kernel the default is not in Grub2 - 
> so
> not sure how that can be addressed.
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=668063
>>> I just added some more description to this bug.
>> So, there's a meta-point here: we currently 'require' Beta releases to
>> boot as guests on Xen hosts:
>> "The release must boot successfully as a virtual guest in a situation
>> where the virtual host is running a supported Xen implementation"
>> I really don't have much knowledge of Xen and haven't followed this
>> discussion closely, but do any currently-known bugs prevent this? If so,
>> please flag them up so they can be considered as Beta blockers...thanks!
> Somehow the xen-kbdfront driver is not included in the initrd image
> (I think) - and we end with anaconda but can't type anything.  I've been 
> trying
> to figure out how to inject said module in the install initrd to see if that 
> is
> really the problem but running in roadblocks (like xz 5.1.1alpha or 5.0.3 
> complains
> about corrupt image, or I've no idea how to make driver disks).

I saw the same thing and worked around it by booting with "vnc
lang=en_US.UTF-8 keymap=us" which eliminiates the need to enter anything
before it starts X on a vnc server.  But it doesn't really address the
original problem.

I spent last Friday trying to get it to do an HVM install, but that
seemed to be very much a Xen problem.  It wouldn't accept keyboard input
or find its emulated devices properly until I added "acpi=off", or set
"acpi=0" in the Xen config.  But even then it refused to see my HD
image, even though the BIOS could list it.

I got stuck at that point, and am now (successfully) doing a PV install
(with the above workaround).


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