Hi Kevin,

Your advice worked! Although, in a strange way - I first friend extra-root-pci set to 255 without luck. It enumerated the bus but no option rom was found/ran.

I then built sgabios and added to the image along with the option to fix the duplicate serial output issue. After flashing and rebooting I was presented with a SeaBIOS prompt on my screen, which was unexpected but great!

SeaBIOS then booted from the flash drive and I was presented with a linux kernel panic. I'll need to investigate that one, but it's looking promising.

Thanks again for your help!

-Nick

On Thu, May 7, 2015 at 12:43 PM, Kevin O'Connor <kevin@koconnor.net> wrote:

On Thu, May 07, 2015 at 12:29:47PM -0700, Nick wrote:
> Hi Kevin,
>
> Thanks for taking a look and thanks for your suggestions.
>
> So, SeaBIOS is not designed to detect and run a VGA option rom from a PCIe
> video card? I was hoping that I could get SeaBIOS to act similar to the
> vendor BIOS and not have to use a serial based console.

SeaBIOS can use VGA on PCIe cards - the problem appears to be that
SeaBIOS isn't scanning all the PCI buses on the machine. Try setting
extra-pci-roots as described previously.

> Any ideas on SeaBIOS not booting from hard disks or USB storage devices?

I suspect the problem with USB storage is really just a result of VGA
not working and the behavior of third-party bootloaders when a vgabios
isn't found. See my previous email.

-Kevin