Comment 2 for bug 705790

Thanks Ant. I wasn't aware of this, but our Xen.org team was, as there was a thread about it on xen-devel. This is a daft thing for Ubuntu to have done, and it has been reverted:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/684875
http://www.gossamer-threads.com/lists/xen/devel/192003

Do we need workaround code in the meantime? We could maybe autodetect the broken versions of Ubuntu, and fix up the problem. An alternative would be for you to add a udev rule that symlinked xvdX to sdX when it was hotplugged. That would work I think.

I don't like the idea of unconditionally assuming that it's sdX if xvdX isn't there -- we'll destroy someone's root filesystem that way.