xen: Problem booting domain0

Ben Collins ben.collins at ubuntu.com
Wed Aug 22 14:44:24 UTC 2007


On Wed, 2007-08-22 at 17:16 +0530, dameem kasali wrote:
> Hi Hadmut Danisch ,
>  
>  
> ubuntu 7.04 doesn't support full virtualization, it just support
> para-virtualization,
>  
> In full virtualization you can access all these kind of resources
>  
> Regards
> Dameem Kasali

Ah, correct. You have to install the domU kernel in your guest to get
full virtualization.

>  
> On 8/22/07, Ben Collins <ben.collins at ubuntu.com> wrote: 
>         
>         On Wed, 2007-08-15 at 23:45 +0200, Hadmut Danisch wrote:
>         > Hi,
>         >
>         > when I try to use Xen of ubuntu 7.04, I can boot into
>         domain0, but
>         > domain0 can't access video cards and some pci devices, e.g.
>         it does
>         > not find sata disks. I've seen the problem on three
>         different machine.
>         >
>         > In contrast, I have one debian machine (although with a much
>         more modern 
>         > CPU) where disks and video behaves as normal, i.e. you don't
>         see any
>         > difference between a regular boot and booting into domain0.
>         Disks and
>         > X11 comes up as usual.
>         >
>         > Could this problem be caused by older processors, different
>         kernel 
>         > configurations, or domain configuration?
>         
>         Xen isn't really supported in pre-gutsy. In Gutsy, however, we
>         are
>         building xen dom0/domU out of our stock tree, and so it should
>         be much
>         more stable. In addition we are providing
>         linux-restrcited-modules and 
>         linux-ubuntu-modules for this kernel, so it should have the
>         exact same
>         hardware support.
>         
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