Re: [Xen-users] Problems running Debian as Guest System on SLES10 Dom0

[Jonathan Ervine <jervine@xxxxxxxxxx>]

On Wednesday 30 January 2008 00:21:09 Todd Deshane wrote:
> its quite funny because sles 10 does not have any pygrub, the only
> way
>
> > to create vms is the domUloader.
> > yesterday I tried had some idea but i dont know if this is a good
> > or a worse idea maybe you can give my some feedback.
>
> Why doesn't sles 10 have pygrub? pygrub comes with Xen.

SLES seems to use domUloader instead of pygrub. I'm not the person to 
ask as to why this is the case, though I believe it was done to support 
booting operating systems that don't use grub as a bootloader. Using 
domUloader requires the kernel and ramdisk to be booted to be specified 
in the config file though. It did look like the original poster had 
done this correctly via bootargs. I'll need to check that the syntax 
used is correct, and I can only do this tonight when I can fire up my 
Xen system. The kernel and ramdisk do not necessarily have to be within 
the DomU filesystem - they can reside on the Dom0 filesystem.

> > ok i thought maybe its possible to create a block device with dd
> > (the normal way). than create a partition table on it and create
> > some partitions with filesystem on it. afterwards to mount this
> > first partition an do the installation stuff with
> > debootstrap.....like i told you i created a partition table...and
> > now its possible to install grub on the block-device, which can
> > start and load the normal xen fixed kernel from debian....
> >
> > what do you think? a worse idea or a good idea ^^
>
> For a PV guest, you can't boot directly with grub. You need to use
> either the kernel= parameter or use a bootloader of some kind.

But other than that, it seems reasonable to install via debootstrap. It 
should then just be a case of booting via the kernel and bootloader. I 
think I've pretty much done the same as the original poster, only to 
stumble because I'm on a 32 bit system with everything installed as 
non-PAE whereas Debian do not make a Xen enabled non-PAE kernel 
available...

Jon

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