On Sat, Jan 15, 2011 at 01:09:07AM +1100, Justin Clift wrote: > On 14/01/2011, at 9:39 PM, Daniel P. Berrange wrote: > > On Fri, Jan 14, 2011 at 11:50:01AM +0800, Osier Yang wrote: > >> 于 2011年01月12日 23:11, John Paul Walters 写道: > >>> Hi, > >>> > >>> I'm trying to get a virtual serial device up and running between my host > >>> and virtual machine with a device name on the host. I'm using libvirt > >>> 0.8.3 and qemu 0.13.0. The challenge that I'm running into is that I'm > >>> able to get a serial device, but I cannot fix it to a pre-defined device > >>> name. For example, I'm using the following in my VM's xml file: > >>> > >>> <serial type='pty'> > >>> <source path='/dev/pts/19' /> > >>> <target port='0' /> > >>> </serial> > >>> > >>> As I said this works, but it doesn't set the host side to /dev/pts/19. > >>> Is there any way to do this? > >> > >> I could reproduce it, trying to find out why. > > > > When using type='type', the source path is an output only > > attribute. You can't control it yourself, it is autoassigned > > by the kernel as it sees fit. > > Any idea if it's the kind of thing whose name could be selected or changed > using udev rules? No, these aren't normal devices. This is a magic filesystem which creates entries on the fly. Daniel
