Re: Testing On Macbook on enbug.org

[KESHAV P.R.]

On Thu, Mar 31, 2011 at 05:59, Chris Murphy <address@hidden> wrote:
> re: http://grub.enbug.org/TestingOnMacbook
>
> I am wondering who the author of this page is, and if it's possible to get a
> more clear step by step of how a Macbook Pro 4,1 – one of the testing
> configurations on that page – was configured to successfully boot Linux in
> EFI native mode. So far I have been unable to reproduce it based on the
> information provided on that page, and have found no other guides or
> resources indicating it's possible.
> See Ben Skaggs take on this "I think you'll find the binary driver will also
> fail in this case with "NVRM: failed to copy vbios to system memory". Unless
> there's some other magic way of retrieving the VBIOS image on these
> machines, there's not a lot we can do."
> https://bugzilla.redhat.com/show_bug.cgi?id=493754#c12
> An advantage of GRUB2 here is the ability to use loadbios. But I have not
> been successful at getting this to work as described.
>

I do not know who started the page and wrote most of it, but i merged
http://grub.fsij.org/TestingOnEFI with
http://grub.fsij.org/TestingOnMacbook (since the latter had more info,
but the page itself is appplicable to both Apple and non-Apple
systems). Most of the troubleshooting part was written by
http://ubuntuforums.org/member.php?u=1121774 (nickname metatech). He
is active in http://ubuntuforums.org/forumdisplay.php?f=328 sub-forum.

You can try these instructions
http://www.rodsbooks.com/ubuntu-efi/index.html written by the author
of GPT fdisk (aka gdisk).

If loadbios does not work, you can try fakebios, although i cant help
you there since i have not used that option and i do not own a mac (i
did my testing in a proper UEFI 2.3 x86_64 firmware - non Apple
system).

> http://bugzilla.redhat.com/show_bug.cgi?id=691609
> Basically this problem blocks Live CD's from natively EFI booting a large
> class of EFI supporting hardware. But even if it's not possible to get this
> to work with Live CD, it would be nice if a clear step by step were
> documented with best practice to get this working after a e.g. text only
> installation (under EFI native booting) were performed.
>
> Chris Murphy
> _______________________________________________
> Help-grub mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-grub
>
>

Regards.

Keshav