[libvirt-users] How to debug Ubuntu 8.04 LTS guest crash during install?

[Daniel P. Berrange]

On Tue, Jan 19, 2010 at 10:54:12PM -0600, Neil Aggarwal wrote:
> Hello:
> 
> I am using kvm on a CentOS 5.4 server.
> 
> I am trying to install the TunkeyLinux Core appliance 
> found here: http://www.turnkeylinux.org/core
> 
> I downloaded the ISO file from the web site.
> 
> Then, I used this command to intall it:
> virt-install -n tkl-core -r 512 --vcpus=1 --check-cpu --os-type=linux 
> --os-variant=ubuntuhardy -v --accelerate 
> -c /tmp/turnkey-core-2009.10-hardy-x86.iso 
> -f /var/lib/libvirt/images/tkl-core.img -s 15 -b br0 --vnc noautoconsole
> 
> When I connect to the VNC console, I get the Turnkey linux 
> options screen.
> I select Install to hard disk from there and it seems to 
> start the install but crashes during the installer startup.
> 
> This is repeatable so there has to be a way to debug it.
> 
> I tried turning on the debug option for virt-install but that
> did not give me any useful info.

virt-install debug options only relate to host side debugging. From your
description it sounds like the crashes is guest side, so you'd likely
need to set guest kenrel debug options - eg make it log to the serial
console at boot time so you see guest kernel messages

Daniel
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