[CentOS] virt-manager crashes Host during installation of guest
Bernhard Gschaider
bgschaid_lists at ice-sf.at
Wed Aug 19 11:52:52 UTC 2009
Thanks for the replies so far.
>>>>> On Wed, 19 Aug 2009 11:06:08 +0100
>>>>> "MMG" == Marcelo M Garcia <marcelo.maia.garcia at googlemail.com> wrote:
MMG> Bernhard Gschaider wrote:
>> Hi!
>>
>> I have the following problem: I have a server (CentOS 5.3
>> x86_64) on which I want to install a virtual Xen-machine
>> (CentOS 5.3 x86_64), I ssh from my workstation (Centos 5.3
>> x86_64 .... do you see the pattern ;) ) to that server and
>> start the virt-manager. I create a new Guest (Paravirtualiuzed)
>> and point it to the server with the installation files (CentOS
>> 5.3, but I already said that). The manager creates the disk
>> image an then opens the Graphical console for
>> installation. Sometime around the point where the installation
>> program wants me to select the keyboard the graphical console
>> it freezes. The server is completely dead (no console, no disk
>> activity, no ping, only a reset will "repair" it)
>>
>> My question: am I doing something stupid? But I figured
>> "They're all the same system, this must work"
>>
>> I don't want to play around with it too much as the server is
>> also our file-server and people start complaining.
>>
>> So any hint will be greatly appreciated (otherwise I'll have to
>> setup another machine for the guests)
>>
MMG> I use the virt-manager, but I always use a kickstart to do
MMG> the installation and I never had problems.
This (and other replies) lead me to two possible culprits:
- either the graphical console over X11 is not a good idea (but I
can't imagine that, it shouldn't shoot the kernel)
- I always installed as a paravirtualized machine, Could it be that
the install-kernel on the 5.3-media is not aware of this and somehow
manages to shot the host (because I noticed that most recipies on the
net, including http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU
never talk about paravirtualized (so I assume they use a fully
virtualized guest)
I will try these later today (when people left the office and no one
will complain about server downtimes)
Bernhard
BTW: Just one fundamental question: as the upstream OS vendor is
switching his virtualization to KVM anyway, is it a good idea to
forget Xen and use KVM (in other words: is it stable enough for
production)?
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