Re: [Xen-devel] Updating Xen 4.1.x xmexamples files (vfb line required for HVM guests)

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2011-07-25 at 17:05 -0400, Pasi KÃrkkÃinen wrote:
> On Mon, Jul 25, 2011 at 04:39:16PM -0400, jim burns wrote:
> > On Mon July 25 2011 3:57:23 PM Pasi wrote:
> > > On Mon, Jul 25, 2011 at 03:48:18PM -0400, jim burns wrote:
> > > > On Mon July 25 2011 3:31:22 PM Pasi wrote:
> > > > > On Sat, Jul 23, 2011 at 02:26:56PM -0400, jim burns wrote:
> > > > > > Pls cc: me, as I am not subscribed.
> > 
> > > > > Hello,
> > 
> > > > Hi, Pasi! Long time no 'see'.
> > 
> > Btw, maybe you were following the thread '[Xen-devel] Failure to create HVM 
> > DomU at Xen 4.1 ( kernel 3.0.0-5-generic) Ubuntu 11.10 (alpha 2)'.  In my 
> > fork 
> > of that thread, I summarized many other threads over the last month of 
> > people 
> > having problems starting an hvm domu under xen 4.1.x. Konrad finally 
> > provided 
> > the solution - 4.1.x requires the pv style vfb= line, not the indidvidual 
> > variables.

Perhaps I misunderstand this stuff but AIUI the vfb= line configures a
Xen PV framebuffer device whereas the individual vnc*/sdl*/etc variables
configure the backend for the emulated VGA device. IOW they are pretty
much orthogonal and (for an HVM guest) both should work (dependent on
the required in-guest support being available). Also I'm not sure if
they can be used simultaneously, I expect they can.

> > Which brings up my pet peev about documentation. Even something as simple 
> > as 
> > updating the xmexample files in the /etc/xen tree would have avoided this 
> > problem for so many people. Since you lurk around in Xen Devel, maybe you 
> > can 
> > make people aware of the problem?

If you find areas where xm* are not accurate than patches would be very
much appreciated.

> > 
> > Thanx.
> 
> Thanks!
> 
> Added xen-devel to CC list..
> 
> -- Pasi
> 
> 
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