I am trying to debug the debian bug for Xen http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656792. The domU debian machine (HVM and PV) fails to bootup and redirects to initramfs prompt. The error is "Unable to find a medium containing a live image system". I did a cat on proc/modules. Looks like the xen drivers are not loaded. A modprobe of xen_blkfront doesnt help the bootup either. Any workaround suggested. Debian Kernel 3.0 work fine. Thanks _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Ian Campbell
2012-Aug-16 08:09 UTC
Re: Debian kernel 3.1 onwards fails to boot on Xen domU
On Thu, 2012-08-16 at 00:29 +0100, Deepti kulkarni wrote:> I am trying to debug the debian bug for Xen > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656792. > > > The domU debian machine (HVM and PV) fails to bootup and redirects to > initramfs prompt. The error is "Unable to find a medium containing a > live image system". > > > I did a cat on proc/modules. Looks like the xen drivers are not > loaded. > > > A modprobe of xen_blkfront doesnt help the bootup either. > > > Any workaround suggested. Debian Kernel 3.0 work fine.There are several suggested workarounds and diagnostics to try in that bug log -- have you tried them? That said I''m not necessarily convinced your issue is related to that bug, which was quite PVHVM specific (yet you mention having the problem on PV too). If none of the suggested workarounds help then I would suggest making a full bug report (with logs etc) as described in http://wiki.xen.org/wiki/Reporting_Bugs_against_Xen In particular full guest logs and a description of the installation method which you used would be useful. Ian.
Deepti kulkarni
2012-Aug-16 20:22 UTC
Re: Debian kernel 3.1 onwards fails to boot on Xen domU
On a PV, the vm doesn''t boot and I see error "Error: Starting VM - Traceback (most recent call last): - File "/usr/bin/pygrub", line 808, in ? - fs = fsimage.open(file, part_offs[0], bootfsoptions) - IOError: [Errno 95] Operation not supported" Deepti On Thu, Aug 16, 2012 at 1:09 AM, Ian Campbell <Ian.Campbell@citrix.com>wrote:> On Thu, 2012-08-16 at 00:29 +0100, Deepti kulkarni wrote: > > I am trying to debug the debian bug for Xen > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656792. > > > > > > The domU debian machine (HVM and PV) fails to bootup and redirects to > > initramfs prompt. The error is "Unable to find a medium containing a > > live image system". > > > > > > I did a cat on proc/modules. Looks like the xen drivers are not > > loaded. > > > > > > A modprobe of xen_blkfront doesnt help the bootup either. > > > > > > Any workaround suggested. Debian Kernel 3.0 work fine. > > There are several suggested workarounds and diagnostics to try in that > bug log -- have you tried them? > > That said I''m not necessarily convinced your issue is related to that > bug, which was quite PVHVM specific (yet you mention having the problem > on PV too). > > If none of the suggested workarounds help then I would suggest making a > full bug report (with logs etc) as described in > http://wiki.xen.org/wiki/Reporting_Bugs_against_Xen > > In particular full guest logs and a description of the installation > method which you used would be useful. > > Ian. > > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Ian Campbell
2012-Aug-17 07:50 UTC
Re: Debian kernel 3.1 onwards fails to boot on Xen domU
Please don''t top post. It makes it very hard to follow the flow of a conversation. On Thu, 2012-08-16 at 21:22 +0100, Deepti kulkarni wrote:> On a PV, the vm doesn''t boot and I see error "Error: Starting VM - > Traceback (most recent call last): - File "/usr/bin/pygrub", line 808, > in ? - fs = fsimage.open(file, part_offs[0], bootfsoptions) - IOError: > [Errno 95] Operation not supported"Quoting myself from earlier:> If none of the suggested workarounds help then I would suggest > making a full bug report (with logs etc) as described in > http://wiki.xen.org/wiki/Reporting_Bugs_against_Xenhttp://wiki.xen.org/wiki/Reporting_Bugs_against_Xen lists many logs and other information which are often useful in diagnosing issues, please supply them or we cannot help you. Ian.