Re: [Xen-devel] udev

[Kurt Garloff <garloff@xxxxxxx>]

Hi Stephan,

On Tue, Oct 18, 2005 at 02:02:42PM +0200, Stephan Böni wrote:
> # mknod /dev/hda3 b 3 3
> # mount /dev/hda3
> mount: /dev/hda3 is not a valid block device
>  
[...]
> I have no hda devices configured in my dom0.
>  
> Now i'm looking very puzzled, because on every restart of my 
> domU there are other hda devices missing. Does anyone know 
> how to solve this problem?

Somehow, hotplug events get lost somewhere.
Most probably in dom0, otherwise the mknod+mount would work.

Look for syslog messages in dom0: You should find things like
logger: /etc/xen/scripts/block: Writing backend/vbd/1/769/physical-device
  0x0700 backend/vbd/1/769/node /dev/loop0 to xenstore.
there.

Use xenstore-read backend/vbd/DOM/DEVNO to check what the scripts
have set up in dom0. (DEVNO = 256*major+minor)

Best,
-- 
Kurt Garloff                   <kurt@xxxxxxxxxx>             [Koeln, DE]
Physics:Plasma modeling <garloff@xxxxxxxxxxxxxxxxxxx> [TU Eindhoven, NL]
Linux: SUSE Labs (Director)    <garloff@xxxxxxx>            [Novell Inc]

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