Yes, I am able to start a vm with libvirt and Xen, but I've not tried a xml based on the one openstack generates. I will see if I can try tomorrow to run a separate VM modifying OS's libvirt xml.
I really need to use libvirt due to the live migration support, thus XCP or XenServer + xenapi would not work for me. Also I have a very specific environment I am trying to include openstack that I can't change right now. Also that is a good way to test Openstack and Xen integration outside XenServer. Em 27 de setembro de 2011 23:11, Todd Deshane <todd.desh...@xen.org>escreveu: > 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/ >
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