Re: [SeaBIOS] Sun Ultra 40 M2 - VGA Card Option Rom not detected

[Kevin O'Connor]

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

Sun Ultra 40 M2 - VGA Card Option Rom not detected

[Nick]

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  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