[SeaBIOS] Debug Seabios

Kevin O'Connor kevin at koconnor.net
Wed May 11 01:29:54 CEST 2011

I'm CC'ing the seabios mailing list.

On Tue, May 10, 2011 at 04:32:29PM -0500, Adnan Khaleel wrote:
> Hi Kevin,
> I'm using a modified version of Qemu that adds some additional
> functionality to the chipset being emulated and now I can't seem to
> boot from the hard disk since the bios is reporting that no boot
> devices are available.
> Would you give me some pointers on what I have to do to enable
> debugging on Seabios and Qemu so that I can see whats happening?
> I've changed the debug level to 8 in the seabios config but nothing
> seems to be printed on the terminal.
> Thanks
> Adnan

Sounds like you need the debug output routed to stdio:

qemu ... -chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios


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