Re: [Xen-users] xen 4 and grub2 on debian squeeze

[Andy Howell <AndyHowell@xxxxxxxxxxxxx>]

On 09/30/2010 06:04 PM, Igor Serebryany wrote:
> On Thu, Sep 30, 2010 at 05:08:13PM -0500, Andy Howell wrote:
>> On 09/30/2010 04:03 PM, Igor Serebryany wrote:
>>>     Is there a config file I'm overlooking?
> 
> I guess the config I was overlooking is /etc/default/grub -- settings
> set in there get imported into the scripts that generate the grub.cfg
> entries. Parsing the code, it looks like the 20_linux_xen script uses
> the following arguments:
> 
> for the hypervisor options, use GRUB_CMDLINE_XEN and
> GRUB_CMDLINE_XEN_DEFAULT. for instance:
> 
> GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=256M"
> 
> the dom0 kernel options come from the usual GRUB_CMDLINE_LINUX and
> LINUX_DEFAULT options. in both cases, the non-DEFAULT options come
> first, and the DEFAULT options are omitted in the rescue entries.
> 
> I wish there was a way to pass arguments only to kernels being started
> as part of Dom0. I should submit this as an easy patch to debian...
> 
> I also wasn't sure what the conventional way to make Xen be the first
> thing that boots is, so I just changed the order in which the entries
> are generated:
> 
> testbox1:/etc/grub.d# mv 20_linux_xen 09_linux_xen
> 
> --Igor
> 

Igor,

        If you edit /etc/default/grub and set GRUB_DEFAULT:

GRUB_DEFAULT="Ubuntu, with Linux 2.6.32-24-generic"

GRUB_DEFAULT is either the entry number or the exact menu text.

The Ubuntu docs may be of help:

https://help.ubuntu.com/community/Grub2

After you change it, run update-grub.

Andy

        

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