On Thu, Sep 10, 2009 at 03:15:44PM +0200, Matthias Schmidt wrote:
Hi,
I'm currently trying to boot a Xen VM with the root file system on NFS via libvirt. Previously we used a small python script and "xm create" to boot a number of VMs (which worked fine). Now I'm trying to integrate that functionality in a python project which uses libvirt, but sadly booting the VMs fail.
The small script constructs a Xen command line which looks like the following:
create =("/usr/sbin/xm create /foo.cfg \ kernel=%s ramdisk=%s memory=64\ root=/dev/nfs nfs_server=%s nfs_root=%s name=%s vif='mac=%s'\ dhcp='dhcp' vcpus=1 extra='init=/stateless.sh xencons=tty1'\ ")%(vm_kernel, vm_ramdisk, vm_nfs_server, vm_nfs_root, hostname, vif)
kernel and ramdisk are the path to the installed version, vm_nfs_server is the IP address of the NFS server and vm_nfs_root the path to the operating system installation (which is a Debian Linux). Firing up the script brings up all VMs with a read-only NFS root file system.
Now I tried to do this with libvirt, but all attempts failed with the following error popping up after the VM boots (after a certain time(out)):
It is hard to tell if this is just a configuration error, or an actual libvirt Xen bug since there are a great many variables here. I think it would be best to file a BZ against libvirt and include the following - The output of 'xm list --long GUESTNAME' when launched using 'xm' - The output of 'xm list --long GUESTNAME' when launched using libvirt - The /var/log/xen/xend.log file - The libvirt XML you used to launch the guest, or virsh dumpxml - The /foo.cfg file used with xm Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|