[coreboot] SeaBIOS, serial output, and grub
ward at gnu.org
Thu May 21 18:38:30 CEST 2009
On Thu, May 21, 2009 at 12:13:04PM -0400, Ward Vandewege wrote:
> On Fri, May 15, 2009 at 10:37:56PM -0400, Kevin O'Connor wrote:
> > On Fri, May 15, 2009 at 11:27:35AM -0400, Ward Vandewege wrote:
> > > Now - the reason why I wanted to use sgabios, was to get the seabios console
> > > output on serial.
> > >
> > > As you can see in the logs, sgabios is loaded too late to be much use for
> > > that (after the disk detection, and after seabios prints 'Press F12 for boot
> > > menu').
> > >
> > > If sgabios is the way to get seabios to copy console to serial, would it be
> > > possible to load the sgabios option rom (much) earlier?
> > Sgabios isn't a PnP rom, and it therefore doesn't get called before
> > the boot menu. You can try the patch to sgabios below - I don't know
> > how reliable it will be.
> That worked! However, the serial bug is apparently back - grub's printing
> 'Press any key to continue' very very slowly, and ignoring serial console
> input while that is happening. See boot log at:
Disregard that. It works perfectly both with CONFIG_DEBUG_SERIAL on or off.
I was not using the seabios payload I thought I was.
Nathan - any chance that patch could be applied to sgabios?
Ward Vandewege <ward at fsf.org>
Free Software Foundation - Senior Systems Administrator
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