Re: [libvirt] virsh create Guest Crashing
Stefan de Konink <skinkie(a)xs4all.nl> wrote on 19/05/2008
18:18:25:
Chris Lalancette schreef:
> Kenneth Nagin wrote:
>> Setting up new root fs
>> setuproot: moving /dev failed: No such file or directory
>> no fstab.sys, mounting internal defaults
>> setuproot: error mounting /proc: No such file or directory.
>> setuproot: error mounting /sys: No such file or directory
>> Switching to new root and running init.
>> unmounting old /dev
>> unmounting old /proc
>> unmounting old /sys
>> switchroot: mount failed: No such file or directory
>> Booting has failed.
>> Kernel panic - not syncing: Attempted to kill init!
>>
>> I see two possible sources to the problem:
>> XENBUS: Device with no driver ...
>> and
>> setuproot: moving /dev failed: No such file or directory
>> ...
>> switchroot: mount failed: No such file or directory
>>
>> Is there libvirt xml equivalent to the XEN configuration file's root =
>> "/dev/xvda1 ro"?
>>
>
> OK, yeah. The XENBUS: Device with no driver can be ignored, I'm
pretty sure.
> The problem is probably what you think, that you don't have a
root=/dev/xvda1
> line in there. Other people will have to comment on whether there
is a libvirt
> XML equivalent, since I'm just not sure.
<domain type='xen' >
<name>Gentoo</name>
<os>
<type>linux</type>
<kernel>/usr/lib/xen/boot/linux-2.6.20-xen-r6</kernel>
<cmdline> root=/dev/xvda ro
ip=85.17.131.4:1.2.3.4:85.17.131.253:255.255.255.0::eth0:off</cmdline>
</os>
<memory>131072</memory>
<vcpu>1</vcpu>
<devices>
<disk type='pool'>
<source pool='netapp' volume='lun-3' />
<target dev='xvda'/>
</disk>
<interface type='bridge'>
<source bridge='xenbr0'/>
<mac address='aa:00:00:00:00:11'/>
<script path='/etc/xen/scripts/vif-bridge'/>
</interface>
</devices>
</domain>
I think the target dev here can just be appended with an one?
Stefan
I used virsh xmldump to create an xml file.
I comment out the bootloader element since XEN create fails with an error
when
the bootloader element is empty. Also I commented out the target dev vif
directive because
it is ignored by create. The domain id directive is also ignored.
This is a commented copy of the working xml:
<domain type='xen' id='78'> <!-- create seems to ignore id
directive -->
<name>ken-30</name>
<uuid>c309cbc4-7e95-545f-0b16-2bf9e1e050dd</uuid>
<!--<bootloader/> create error xen doesn't accept empty bootloader
-->>
<os>
<type>linux</type>
<kernel>/data/images/boot/vmlinuz-2.6.21.7-3.fc8xen</kernel>
<initrd>/data/images/boot/2.6.21.7-3.fc8xen-fedora.fc8.img</initrd>>
<cmdline>root=/dev/xvda1 ro </cmdline>
</os>
<memory>131072</memory>
<vcpu>1</vcpu>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>>
<interface type='bridge'>>
<source bridge='virbr0'/>>
<!-- <target dev='vif78.0'/> create seems to ignore vif directive
-->
<mac address='00:16:3e:3b:46:d5'/>
<script path='vif-bridge'/>
</interface>
<input type='mouse' bus='xen'/>
<graphics type='vnc' port='5930'/>
<disk type='file' device='disk'>
<driver name='tap' type='aio'/>>
<source file='/data/images/nagin/c1/ken-30/fedora.fc8.img'/>
<target dev='xvda1'/>
</disk>
<disk type='file' device='disk'>
<driver name='tap' type='aio'/>
<source file='/data/images/nagin/c1/ken-30/fedora.swap'/>
<target dev='xvda2'/>
</disk>
<console tty='/dev/pts/8'/>
</devices>
</domain>
Thanks for the help.