Can u try with the ttylinux images and see if those work for you? I know when I tried it I had to adjust the libvirt xml was creating (which may have not been the right solution) to get those to work.
I think the ttylinux ones might work better (from the last time I tried). On 9/27/11 7:11 PM, "Todd Deshane" <todd.desh...@xen.org> wrote: 2011/9/27 Rogério Vinhal Nunes <roge...@dcc.ufmg.br>: > Hello, I've upgraded to Diablo to see if this issue was resolved, but > apparently it isn't. > > There is already a thread talking about it, but it didn't come to a solution > that I could use. After having Openstack configured with Xen and libvirt in > Ubuntu 10.04 whenever I run an instance it is started, but it stops with a > kernel panic trying to mount root by using xvda, but sda is the only > available. > > I'm using Diablo's nova + glance and the > ubuntu1010-UEC-localuser-image.tar.gz from the manual. > > The kernel panic is like this: > > [ 0.170563] VFS: Cannot open root device "xvda" or unknown-block(0,0) > [ 0.170572] Please append a correct "root=" boot option; here are the > available partitions: > [ 0.170585] ca00 32768 sda driver: vbd > [ 0.170594] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > [ 0.170604] Pid: 1, comm: swapper Not tainted 2.6.35-24-virtual > #42-Ubuntu > > I've played with libvirt.xml.template, it changed a lot since Cactus, so I > tried to replace xvda with sda, and the kernel panic didn't go away, just > changed a little: > > [ 0.161237] List of all partitions: > [ 0.161248] ca00 32768 sda driver: vbd > [ 0.161257] No filesystem could mount root, tried: ext3 ext2 ext4 > fuseblk > [ 0.161275] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(202,0) > [ 0.161286] Pid: 1, comm: swapper Not tainted 2.6.35-24-virtual > #42-Ubuntu > Are you able to start a guest manually with Xen + libvirt (without OpenStack)? That's the first step to debugging this issue. > I've tried using --xenapi_remap_vbd_dev=true, but it didn't work (it > wouldn't also because I'm using libvirt, not xenapi). > Would XCP or XenServer work for you in general? (The XenAPI-based hypervisors are more tested and even have more features compared with libvirt - http://wiki.openstack.org/XenAPI) Or even Project Kronos (also uses XCP/XenServer toolstack) http://blog.xen.org/index.php/2011/07/22/project-kronos/ Thanks, Todd -- Todd Deshane http://www.linkedin.com/in/deshantm http://www.xen.org/products/cloudxen.html http://runningxen.com/ _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
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