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xen-users
Re: [Xen-users] "update-grub" adds line to "multiboot"
On Tue, Aug 30, 2011 at 2:54 PM, MisterE <MisterE2002@xxxxxxxxx> wrote:
> Hello Xen folks,
>
> I use Debian Squeeze. I want to passthrough PCI devices.
> With the old stable Debian (grub legacy) i did not have problems.
>
> I edit /etc/default/grub like:
> quote:
> GRUB_CMDLINE_XEN_DEFAULT="quiet xen-pciback.permissive
> xen-pciback.hide=(00:14.2)(01:05.1)"
>
>
> I run "update-grub". Now i look at /boot/grub/grub.cfg:
>
>
> ### BEGIN /etc/grub.d/20_linux_xen ###
> menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN
> 4.0-amd64' --class debian --class gnu-linux --class gnu --class os --class
> xen {
> insmod part_msdos
> insmod ext2
> set root='(hd0,msdos1)'
> search --no-floppy --fs-uuid --set 5a097ed6-415b-45ff-bba7-d628c92b1f7a
> echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
> multiboot /xen-4.0-amd64.gz placeholder quiet xen-pciback.permissive
> xen-pciback.hide=(00:14.2)(01:05.1)
> module /vmlinuz-2.6.32-5-xen-amd64 placeholder
> root=/dev/mapper/vg_dom0-lv_root ro quiet
> echo 'Loading initial ramdisk ...'
> module /initrd.img-2.6.32-5-xen-amd64
> }
>
>
> The "pciback" command is at the "multiboot" line. This does not work? It does
> not seize the device after a reboot.
>
> If i use:
> quote:
> GRUB_CMDLINE_LINUX_DEFAULT="quiet xen-pciback.permissive
> xen-pciback.hide=(00:14.2)(01:05.1)"
>
>
> The result is:
> ### BEGIN /etc/grub.d/20_linux_xen ###
> menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN
> 4.0-amd64' --class debian --class gnu-linux --class gnu --class os --class
> xen {
> insmod part_msdos
> insmod ext2
> set root='(hd0,msdos1)'
> search --no-floppy --fs-uuid --set 5a097ed6-415b-45ff-bba7-d628c92b1f7a
> echo 'Loading Linux 2.6.32-5-xen-amd64 ...'
> multiboot /xen-4.0-amd64.gz placeholder
> module /vmlinuz-2.6.32-5-xen-amd64 placeholder
> root=/dev/mapper/vg_dom0-lv_root ro quiet xen-pciback.permissive
> xen-pciback.hide=(00:14.2)(01:05.1)
> echo 'Loading initial ramdisk ...'
> module /initrd.img-2.6.32-5-xen-amd64
> }
>
>
>
> Now the "pciback" command is at the "module" line and the device is actually
> seized. The problem is that is added to all linux kernels and not only the
> Xen kernel.
>
This is more of a bug against the packaging of grub2 support for Xen
in Debian. You should file a bug with Debian.
Thanks,
Todd
--
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/
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