[Xen-users] RE: DomU boot fails with can't find root on Fedora 6

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: Ligesh [mailto:myself@xxxxxxxxxx] 
> Sent: 31 January 2007 13:18
> To: Petersson, Mats
> Cc: Xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: DomU boot fails with can't find root on Fedora 6
> 
> On Wed, Jan 31, 2007 at 02:10:21PM +0100, Petersson, Mats wrote:
> > 
> > Probably caused by the fact that you're using the same 
> initrd for your
> > guest as you do for the host - you should use a separate 
> initrd for your
> > guest (using the same kernel is fine). My guess is that the 
> initrd is
> > "messing" with the root argument.
> > 
> 
>  But initrd is nothing but a archive of the drivers. I 
> checked it, and it doesn't contain an etc or anything that 
> can mess with the boot. Or if it does, that's a very wrong 
> design. Anyway how do I create a new initrd that won't mess 
> with the boot?

Usually, the initrd contains a little bit of scripting too, which sets
up devices and such, and I suspect this is what causes a problem. 

You can create a new initrd with "mkinitrd file linuxver", such as
"mkinitrd someplace/initrd-xen 2.6.18-xen" - obviously, don't overwrite
your existing /boot initrd. 

I'm by no means an expert on initrd (nor do I use LVM on any of my
current machines), but the above is what I understand of it. (I had a
look at mkinitrd, but it's a fairly BIG shell-script file - but from
what I can see, it does set up a bunch of script stuff, and some are
directly related to using LVM). 

--
Mats
> 
>  PS: I solved the fedora-xen ml problem. I have around 60 
> mailboxes, and it appears I had filtered all mails from 
> redhat to another mbox, because rh used to spam me with their 
> newsletter. So I will ask there too.
> 
>  Thanks.
> 
> 
> 
> 



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