Re: EFI boot on non Mac hardware.

[Cedric Lejeune]

Hello Matthew,

Thanks for your answer.

> Almost all motherboards are EFI but it is not enabled, you could
> verify if it is enabled by trying to install a retail copy of mac os
> x.
I do not own any copy of OS X. I only own a license for Windows 7. And 
obviously, there is Linux.

> Windows 7 has boot code for both efi and non efi boards this makes
> installing into os x boot camp easier.
I really think Windows 7 is booting using EFI since I succeed in 
starting it using \efi\Boot\bootx64.efi and 
\efi\Microsoft\Boot\bootmgfw.efi, both from EFI shell and from newly 
added entries in my boot menu.

> You may also be able to speak with your manufacturer to see if there
> is a jumper on the motherboard that can enable efi.
There is a BIOS option to enable UEFI boot that I have activated.

> Installing os x might not work as the os is now processor locked.
This is not an issue since I do not want to use OS X. Currently, I only 
want a working dual boot Windows 7 / Linux.

Thanks for your help,

cedric.

On 6/1/2010 5:09 PM, Matthew Ratzke wrote:
> Almost all motherboards are EFI but it is not enabled, you could verify
> if it is enabled by trying to install a retail copy of mac os x. Windows
> 7 has boot code for both efi and non efi boards this makes installing
> into os x boot camp easier. You may also be able to speak with your
> manufacturer to see if there is a jumper on the motherboard that can
> enable efi. Installing os x might not work as the os is now processor
> locked.
>
> Matthew Ratzke
>
> On 2010-06-01, at 7:45 AM, Cedric Lejeune
> <address@hidden> wrote:
>
> > Hello list,
> >
> > I have bought a EFI capable notebook (ASUS G73GH, x86_64, MegaTrend
> > BIOS) and I am trying to fully boot Linux (Debian) using EFI. I first
> > partitioned my disk using GPT and allocated some space to the ESP.
> > Then I installed Debian package grub-efi-amd64, used grub-install and
> > grub-mkconfig to generate grub.efi and grub.cfg config file and check
> > everything was on the ESP, including *.mod, *.lst and the like. I
> > added a new entry in my boot menu pointing to grub.efi, saved changes
> > and choose the newly added entry. The screen resolution changed and a
> > prompt appeared at the top left corner of the screen and tada! Epic
> > fail... Blank screen. So I tried using grub-efi-ia32, same result.
> > Next, I tried with grub-1.98 sources using grub wiki and
> > http://blog.fpmurphy.com/2010/03/grub2-efi-support.html as references
> > and once again, blank screen.
> >
> > So I give a try using Windows 7: EFI boot install DVD, wipe GPT from
> > the install disk and let Windows 7 installer manage everything. At the
> > end of the installation, a new boot entry was added to my boot menu
> > and I could fully boot Windows 7 using it. So, I guess that means my
> > notebook is really EFI capacble, right?
> >
> > I then tried to install and use Shell_Full.efi from EDK, added a new
> > entry to my boot menu and everything worked fine. I have tried rEFIt
> > too and it kinda worked (it complain about vollabel?). But at least, I
> > was seeing something one my screen. Manually added entry to boot
> > Windows 7 worked too.
> >
> > So here come the questions:
> > 1. Is there some way to precisely know which modules I have to include
> > when I generate grub.efi?
> > 2. Is there a way to make grub more verbose? Or a debug mode?
> > Something that would let me know at which step the boot sequence is?
> > Or a way to use EFI shell to run grub in verbose mode? To sum up, I
> > would like some log to track down what is wrong with my current setup.
> > 3. How could I check the problem is not due to my BIOS?
> >
> > I have already took a look at the mailing list, but a lot of (all?)
> > EFI issues are Mac related (no 'bless' command on Linux for instance).
> >
> > Thank you for your help.
> >
> > Kind regards,
> >
> > cedric.
> > <cedric_lejeune.vcf>
> > _______________________________________________
> > Help-grub mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/help-grub
>
> _______________________________________________
> Help-grub mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-grub

cedric_lejeune.vcf
Description: Vcard