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Re: [Xen-devel] Re: Failure to setup Xen 3.4.1 Dom0 on top of Ubuntu 9.1

To: xen-devel@xxxxxxxxxxxxxxxxxxx, Christian Tramnitz <chris.ace@xxxxxxx>
Subject: Re: [Xen-devel] Re: Failure to setup Xen 3.4.1 Dom0 on top of Ubuntu 9.10 Server HVM DomU ( xenified kernel)
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Sun, 30 Aug 2009 11:19:34 -0700 (PDT)
Delivery-date: Sun, 30 Aug 2009 11:19:56 -0700
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It does help for  xenified aka Suse kernel( via Andy Lyon's Patch Set V.3)  and doesn't help for 2.6.31-rc5 pvops enabled kernel.
I can't build  fresh 2-6-31-rc6 at the moment. Make fails.


--- On Sun, 8/30/09, Christian Tramnitz <chris.ace@xxxxxxx> wrote:

From: Christian Tramnitz <chris.ace@xxxxxxx>
Subject: [Xen-devel] Re: Failure to setup Xen 3.4.1 Dom0 on top of Ubuntu 9.10 Server HVM DomU ( xenified kernel)
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Sunday, August 30, 2009, 9:26 AM

Afaik grub2 does not pass the boot parameters "root=/dev/sda2 ro console=tty0" to the kernel in multiboot/module combination. I have seen the same problem on gentoo/grub2 and also read about this before. (This is not really Xen specific, but multiboot related).
My workaround was to compile the kernel options as static cmdline into the kernel itself...

Best regards,

Boris Derzhavets wrote:
> Karmic Server HVM DomU setup at Xen 3.4.1 Dom0 F11 via virt-install.
> Attempt to build Xen from source and xenified kernel succeeded.
> Before creating Grub 2 entry for Xen Host directive "root=UUID=.."  switched off by editing /etc/default/grub and update-grub run.
> Manually created entry /boot/grub/grib.cfg as advised for Debian (Grub 2)
>   Xen 3.4.1 Ubuntu 9.10 {
> multiboot (hd0,1)/xen-3.4.gz
> module    (hd0,1)/vmlinuz- root=/dev/sda2 ro console=tty0
> module    (hd0,1)/initrd-
> }
> Failure when waiting for /dev/sda2 and dropping to grub prompt
> HVM itself loads fine.
> Boris.

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