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RE: [Xen-users] Startup-Hook Script ?

To: "'Fajar A. Nugraha'" <fajar@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Startup-Hook Script ?
From: "Steffen Heil" <lists@xxxxxxxxxxxxxxx>
Date: Fri, 27 Jun 2008 23:32:09 +0200
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Hi

I did include "bootloader = /usr/bin/pygrub" in my config (and the root
partition does have a /boot/grub/menu.lst"), but xm create states that the
bootloader did not return any data.

My root partition is a LVM-based xfs filesystem.

Does pygrub support this? Where can I find documentation about pygrub?


Regards,
  Steffen


(BTW: using debootstraped ubuntu hardy only.)

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Fajar A. Nugraha
> Sent: Friday, June 27, 2008 11:47 AM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Startup-Hook Script ?
> 
> Steffen Heil wrote:
> >>> Reason: I'd like to automatically mount the root drive 
> and copy the 
> >>> kernel and initramdisk to dom0 and unmont again. So 
> updates of the 
> >>> kernel can be done inside the domU.
> >>>       
> >> Is there a reason for not using pyrgub, which does exactly 
> what you 
> >> want with regards to kernel and initrd?
> >>     
> >
> > I've read that pygrub would have some security problems.
> > If this is wrong, please correct me.
> >
> >   
> 
> It HAD one. They fixed it.
> I think the same security problem will also bite you if you 
> implement it manually using home-made script :)
> 
> > However, I also did not find a how-to how to use pygrup.
> >
> >
> >   
> 
> Yeah, that's the thing. Weird, considering it's the default 
> bootloader when installed using virt-manager/virt-install.
> 
> Try here
> http://www.centos.org/docs/5/html/5.2/Virtualization/sect-Virt
> ualization-Tips_and_tricks-Example_guest_configuration_files_a
> nd_parameters.html
> http://www.centos.org/docs/5/html/5.2/Virtualization/sect-Virt
> ualization-Installing_guests-Create_a_guest_using_virt_manager.html
> 
> In short, if your domU has kernel, initrd, and grub config on 
> it (as is the case when installed with virt-manager), you can 
> boot it with pygrub.
> 
> Regards,
> 
> Fajar
> 

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