[coreboot] Use VBIOS from vendor's original bin file

Mike Banon mikebdp2 at gmail.com
Tue Nov 6 23:43:01 CET 2018


Hello Zvika,

> How can it find [VBIOS] in the vendor's bin file ?

It really depends on the type of vendor's BIOS because they could be
packed differently. For example, if your vendor's BIOS is Inside then
you can use Inside H2OEZE utility (sadly its' Windows-only and not
available officially, but you could find it if really want). But
please keep in mind that your vendor's BIOS might be patching that
VBIOS during booting, if that is indeed so - then a "clean" unpatched
VBIOS extracted with this method, either will not work at all or work
with errors. So it is always recommended to extract VBIOS from a
running system, just in case. Usually these instructions are working -
https://www.coreboot.org/VGA_support#How_to_retrieve_a_good_video_bios
, see "Retrieval via Linux kernel" part. But if that's not working at
your system and you've tried everything else, here is a great
alternative method -
https://mail.coreboot.org/pipermail/coreboot/2017-July/084660.html

Best regards,
Mike Banon
On Tue, Nov 6, 2018 at 10:18 PM Zvi Vered <veredz72 at gmail.com> wrote:
>
> Hello,
>
> Currently I'm replacing the BIOS in the vendor's bin file with coreboot.bin
> Can coreboot use Vendor's VBIOS instead of the serial console ?
> How can it find it in the vendor's bin file ?
>
> Thank you,
> Zvika
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