[RFC] Trusty plans for xen-api/xcp

Stefan Bader stefan.bader at canonical.com
Mon Mar 17 09:38:53 UTC 2014

On 14.03.2014 18:58, George Dunlap wrote:
> On 02/10/2014 03:00 PM, Stefan Bader wrote:
>> On 10.02.2014 15:47, George Dunlap wrote:
>>> On Mon, Feb 10, 2014 at 9:24 AM, Robie Basak <robie.basak at ubuntu.com> wrote:
>>>> On Fri, Jan 31, 2014 at 01:45:44PM +0000, Robie Basak wrote:
>>>>> Unless somebody steps up to maintain xen-api, I don't think it makes
>>>>> sense to continue keeping these packages in Ubuntu, given that Debian
>>>>> have removed them from testing and the existing packages broken (and, it
>>>>> seems, thus stuck in trusty-proposed). So we should remove them from
>>>>> trusty-proposed.
>>>> I have filed bug 1278352 to have these packages removed from Trusty.
>>> FYI, I just had a chat with the lead xapi developer.  He's said that
>>> unfortunately management has told them not to work on the open-source
>>> xapi packages (at least for now); so if there is nobody in the
>>> community willing to maintain it, then I think removing it is probably
>>> the best option.
>>> On a related note -- what version of libvirt / Xen will be in Trusty?
>>> The SuSE guys have made a lot of progress on getting good support for
>>> libxl and libvirt; that's probably the best way forward.
>>>   -George
>> Libvirt version 1.2.x (currently .1) not sure whether this may or may not change
>> until release. Xen ... at least 4.3.2 (not yet uploaded) but there has been some
>> interest (for the better Arm support) on 4.4. Depends a bit how soon/late the
>> release is compared to Trusty.
>> Anyway, I would like to make xl the default for new setups at least. I am
>> currently using it a lot together with virt-manager (though it has some odd ends
>> still) and I am being told that openstack integration is done via libvirt at
>> least (not sure they mandate the stack being xl or not).
> I've just downloaded a daily snapshot from 03/13 and gone through the process of
> installing Xen and testing basic functionality.
> A couple of suggestions:
> * The wiki minimally needs to be tweaked a bit for the new release; I can do
> that when it's closer to the release.
> * It would be good to be able to boot Xen be default if it's installed, without
> having to muck about with setting the default. Is there any chance of patching
> grub to reverse the default order?
> * It would be better to default to xl rather than xend
> * If you update to Xen 4.4 (which was released earlier this week) and use 1.2.2
> for libvirt, the libvirt/libxl driver should be really solid.
> If you do update to 4.4, let me know when that's done, and I can help test the
> libvirt integration.
> Another advantage of upgrading to 4.4 is that nested virtualization is much
> improved: you can feasibly install Xen inside a an HVM guest, and then install
> HVM guests inside of that.  Nested virtualization is really slow, but it may be
> easier to test.
>  -George
Hi George,

I am trying to get 4.4 into Trusty right now. In that package I changed the
default to xl already. The default boot is something that should be possible.
Maybe not immediately as I want to get the 4.4 update through feature freeze.
But I wanted to make some changes to grub integration anyway, so that would be
part of that.
The wiki, you mean a xen.org wiki or some Ubuntu?
Currently I got the new package only on my ppa (apt-add-repository ppa:smb/xen).
Adding that you could have a look at the intended package earlier. Note that
this always needs a recompiled libvirt due to libxen dependencies. I will try to
keep an up to date recompiled version in my PPA as well.


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