Re: [Xen-devel] Cannot create domU

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 24 Sep 2005, at 11:54, Chris Bainbridge wrote:

> I just tried echo /sbin/hotplug > /proc/sys/kernel/hotplug and it
> works! Woohoo! I can now mount the virtual device. So... there is
> something wrong with either xen or udevsend that should be fixed. I
> have no experience with hotplug, but if someone can point me in the
> right direction I'll try to debug.
As I understand it, there are two standard locations for hotplug 
scripts. One is a directory called /etc/hotplug.d/<name>, the other is 
a file called /etc/hotplug/<name>.agent.
We moved our script to the latter location, as we found that to work 
across debian, suse and redhat distros (unlike /etc/hotplug.d). You'll 
probably find that udevsend is a shell script -- take a look and see if 
it tries to do any hotplug stuff.
I guess it's possible it is looking in /etc/hotplug.d. If so it really 
ought to be updated. Alternatively, some distros have /sbin/hotplug 
search in /etc/hotplug.d, but they add a script to 
/etc/hotplug.d/defaults/ which also searches in /etc/hotplug/. That 
gives you the benefit of searching in both locations.
Anyway, I think it's gentoo's udevsend that is at fault here. Every 
other distro we know of searches /etc/hotplug/ these days.
 -- Keir


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