Xen users - Mar 2006 - xen not generating hotplug/udev events?

I''m using kubuntu dapper, so /proc/sys/kernel/hotplug is disabled,
and instead udevd is running to get events from kernel and do what
is necessary.

in my first steps with xen (unstable), I get this error:
root@nandemonai:~# xm create myxm 
Using config file "/etc/xen/myxm".
Error: Device 2049 (vbd) could not be connected. Hotplug scripts not
working.
root@nandemonai:~# 

udevmonitor does not show any event happening, so I guess
there are none. is some special kernel option needed? 
CONFIG_KOBJECTS_UEVENT does no longer exist in linux kernel, so I
guess it is compiled in always.

any idea what is wrong? the kernel is compiled with CONFIG_HOTPLUG
of course (both xen0 and xenU).

what else is missing?

Thanks, Andreas


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Hi Andreas,
> udevmonitor does not show any event happening, so I guess
> there are none. is some special kernel option needed? 
> CONFIG_KOBJECTS_UEVENT does no longer exist in linux kernel, so I
> guess it is compiled in always.
>   
I had problems with hotplug/udev either.
One reason was that the file xen-backendagent.rules was not copied to 
/etc/udev/rules.d.
The installation script/Makefile didn''t copied it. So just copy it
manually.
A second reason was the main network interface had the name "eth1",
but
the XEN scripts in /etc/xen/scripts are bound  to "eth0".


Gruß boris

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Boris Kröger wrote:
> I had problems with hotplug/udev either.
> One reason was that the file xen-backendagent.rules was not copied to
> /etc/udev/rules.d.
found it. it was linked into rules.d/, but the order is important.
if it is named "xen-backendagent.rules" it does not work. but
if I rename the link to "92-xen-backendagent.rules", it does.

also my own network custom scripts did not work. switching to
the route version it works fine.

Andreas


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