[Libvir] Re: Virtualization things.

[Daniel P. Berrange]

On Tue, Jul 10, 2007 at 02:25:47PM +0100, Richard W.M. Jones wrote:
> [Moved to libvir-list.  The original thread was on fedora-devel-list, 
> starting here:
> https://www.redhat.com/archives/fedora-devel-list/2007-July/thread.html#00504]
> 
> Till Maas wrote:
> >On Di Juli 10 2007, Richard W.M. Jones wrote:
> >>Till Maas wrote:
> >>>The idea is imho great, but for me with qemu it does not work properly.
> >>I'd really like to help out here.  Did you get any error messages?
> >
> >The first problem is, that it seems to be a tool to create persisten 
> >virtual machines, e.g. virtual servers, but most of the time I only want 
> >to boot a live cd, e.g. a Fedora one. But virt-manager seems to demand an 
> >virtual HD drive. I only tested it twice or so, but it looked not 
> >promising.
> 
> The next version of virt-install will support this explicitly.  I am 
> reliably assured that it should work in qemu & Xen.
> 
> Support is not there yet in virt-manager.

If you want to watch for updates, the feature request ticket is here

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236782

> 
> This is a bug.  Do you know what version of libvirt & virt-manager this 
> happens with?  Suspend _ought_ to work with QEMU with libvirt >= 0.2.0.
> 
> >Then when I shut down the machine and clicked on "run", it did not boot 
> >the ISO Image I selected while creating the machine, but only complained 
> >that it could not boot from HD (which is true, because I did not install 
> >anything to the HD)
> >
> >Then I wanted to delete the machine, but the "Delete" button was still 
> >greyed out, even when I shut it down (Imho it should be available all the 
> >time and provide a warning that the machine needs to be shut down before 
> >it can be deleted). When I closed virt-manager and opened it again, then I 
> >was able to delete the machine.

Yeah, that's a bug in the code dealing with widget sensitivity. It forgets
to re-activate the delete button when the guest shuts down. Just select a
different guest, and then re-select the stopped one - it should enable the
button again then

> >But I cannot find a way to add an iso image to the machine or make it boot 
> >the iso image I selected at creation time.
> 
> I haven't played with live CDs & virt-manager at all, but I'll have a 
> go.  What live CD were you trying?

Live CDs aren't really supported yet - it will boot the CD the first time,
but it expects you to perform an install to the disk, so on sequent boots
it will boot of harddisk. THis is basically the problem BZ 236782 is asking
to be addressed.

> >Also the network selection seems not to work, when I want to add a network 
> >interface, I can choose between virtual and shared device, but both only 
> >have an empty list, where I have to select something to be able to click 
> >on "Forward".
> 
> This is another bug.  If you get me the version of virt-manager, I'll 
> look into it.

I think this probably happens if using QEMU in per-user (unprivileged)
mode. In that case only  slirp style networking is available so it should
not actually show that screen at all.

Dan.
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