On Thu, Apr 30, 2009 at 8:26 PM, Kevin O'Connor <[email protected]> wrote: > On Thu, Apr 30, 2009 at 09:18:45PM -0400, Ward Vandewege wrote: >> So - here's the problem with the sgabios approach. Unless I'm >> misunderstanding how this works, using sgabios means that I'd have >> to disable serial in any payload started from grub, as well? > > It seems to work fine under qemu. In any case, a seabios > implementation would have the same issues as sgabios - it would need > to do exactly what sgabios does. > >> > > > > serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 >> > > > > terminal --timeout=5 serial console > > I've reproduced this problem under qemu. If I boot > qemu/coreboot/seabios/grub, then grub wont use the serial console. > However, if I boot qemu/seabios/grub, then grub seems to work fine. > The above is true regardless of whether SeaBIOS has serial port > debugging on or off. I guess coreboot is initialzing the serial port > in some way that grub doesn't like.
I wonder if this is the same reason the serial console doesn't work from Linux sometimes when I do Linux-as-Bootloader kernels in the ROM. I gave up on that method because it was too hard to debug without serial output. Thanks, Myles -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
