Re: [Xen-users] Re: DomU (CentOS) on Dom0 (Debian) can't find /sys/block/sda/dev

[Tom Brown <tbrown@xxxxxxxxxxxxx>]

On Fri, 11 Aug 2006, Markus Schuster wrote:

> Michael Morris wrote:
> > register_blkdev: cannot get major 8 for sd
> > /bin/cat: /sys/block/sda/dev: No such file or directory
> > Waiting 1 seconds for /sys/block/sda/dev to show up
> > [..]
> > I would appreciate any suggestions on how to get my DomU to boot, or
> > requests for more information.
> 
> May it be that your domU uses yaird as initrd creator? I can remember that I
> had simmilar problems when trying unmodified yaird for the first time. I've
> created a custom domU yaird config and template. 
> I can post them if you use yaird. 

I would expect it was the incomplete path to his image files.

> disk    = [ 'phy:Debian/test-disk,sda1,w',
>            'phy:Debian/test-swap,sda2,w' ]

but I could be wrong. I would spec the full path /somedir/Debian/test-disk 
etc...

He shouldn't need an initrd if he just makes sure he's got a few minimal 
files in /dev/ (e.g. console zero null and maybe his sda devices .... e.g. 
enough for the system to get udev up and running). Personally I try to 
avoid anything that complicates things, and that is especially true of 
boot processes... so unless I _need_ an initrd, I avoid them ... but some 
boot processes require it (like nbd/AOE which require user-space help). 


-Tom

> 
> Greetings, Markus
> 
> 
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