[CentOS-virt] Xen List

Thu Apr 17 20:45:38 UTC 2008
Ross S. W. Walker <rwalker at medallion.com>

Joseph L. Casale wrote:
> >you should disable NetworkManager with Xen or
> >bad things will happen.
> NetworkMangler is only installed with Gnome right? I did a 
> minimal install without Gnome.

Check I think it's include in the 'core' group.

> >I would just create an ifcfg with no IP address and that
> >should work.
> Ok, I will try that if I cant get the pass through to work.
> >There's no need for a custom kernel, all the CentOS Xen kernels
> >include pciback and pcifront support, and most other distros
> >pre-compiled Xen kernels do too.
> Well, I assumed it wasn't as dmesg says unknown kernel option 
> passed when I stick the line into grub.conf? The syntax was 
> righty out of xen doc's and similar to all I found when 
> searching the net. I also tried unpacking the srpm and 
> looking at it to see if I could spot anything which might 
> lead me to believe it was turned on by default but I couldn't 
> figure out where to look, you're sure the srpm has this option on?

It's no longer statically compiled, but as a module, so you need
to define the options in /etc/modprobe.conf and if you need it
to seize the device early you need to make an initrd that grabs
it before all else otherwise you need a little modprobe trick.

Here's an example using my sound card.

options pciback hide=(00:10.1)
# If you aren't preloading pciback in the initrd uncomment the next line
#install snd-hda-intel /usr/sbin/modprobe pciback; /sbin/modprobe --first-time --ignore-install snd-hda-intel

To preload pciback in initrd:

# mkinitrd -f --preload=pciback /etc/initrd-$(uname -r).img $(uname -r)

That should do it.


This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
distribution or copying of this e-mail, and any attachments thereto,
is strictly prohibited. If you have received this e-mail in error,
please immediately notify the sender and permanently delete the
original and any copy or printout thereof.