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Re: [Xen-users] Manually create Fedora domU on CentOS 5.3 dom0

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Subject: Re: [Xen-users] Manually create Fedora domU on CentOS 5.3 dom0
From: Geert Janssens <info@xxxxxxxxxxxx>
Date: Wed, 23 Sep 2009 23:36:00 +0200
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I got a little further.

For the record, the error was due to a kernel mismatch anyway: dom0 was PAE, 
domU not. After having installed the PAE version in domU, I got passed the 
kernel loading.

But not passed boot, I'm afraid.

The domU crashes during the boot sequence. I found this error in the xend.log:
[2009-09-23 23:34:03 4893] DEBUG (DevController:166) Waiting for devices tap.
[2009-09-23 23:34:03 4893] DEBUG (DevController:166) Waiting for devices vtpm.
[2009-09-23 23:34:03 4893] WARNING (XendDomainInfo:1617) Domain has crashed: 
name=Maven id=54.
[2009-09-23 23:34:03 4893] ERROR (XendDomainInfo:1755) VM Maven restarting too 
fast (7.206110 seconds since the last restart).  Refusing to restart to avoid 
[2009-09-23 23:34:03 4893] DEBUG (XendDomainInfo:2402) XendDomainInfo.destroy: 
[2009-09-23 23:34:03 4893] DEBUG (XendDomainInfo:1939) Destroying device model
[2009-09-23 23:34:03 4893] DEBUG (XendDomainInfo:1946) Releasing devices
[2009-09-23 23:34:03 4893] WARNING (image:472) domain Maven: device model 
failure: no longer running; see /var/log/xen/qemu-dm-Maven.log
[2009-09-23 23:34:03 4893] DEBUG (XendDomainInfo:1959) Removing vif/0

This doesn't say much.

Any idea what's wrong here, please ?

If more info is needed, just tell me.


On Wednesday 23 September 2009, Geert Janssens wrote:
> I am trying to setup a Fedora 11 domU on my CentOS 5.3 dom0 installation.
> I want it to use a dom0 LVM partition as its root partition instead of as a
> virtual disk. I understand that Fedora's anaconda won't allow me to do
> this.
> I found this thread on xen-users
> http://lists.xensource.com/archives/html/xen-users/2009-06/msg00650.html
> Which refers to an Amazon EC2 tech doc, explaining how to install Fedora on
> a single root filesystem.
> Following these instructions, I managed to install fedora 11 on an LVM
> partition. However, when attempting to start this setup as a Xen PV, I get
> this error right after pygrub finishes:
> Error: (2, 'Invalid kernel', 'elf_xen_note_check: ERROR: Will only load
> images built for the generic loader or Linux images')
> I'm not sure how to proceed here. Is a special initrd required in a PV
> environment ?
> More details:
> My environment is all 32 bit (xen, dom0, domU)
> dom0 kernel is 2.6.18-128.1.10.el5.centos.plusxen
> xen is gitco xen 3.3.1
> domU kernel is
> Geert

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