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Re: EFI Boot on MacPro

From: peter cros
Subject: Re: EFI Boot on MacPro
Date: Wed, 14 Jan 2009 17:11:17 +1100

Those numbers look better.
Hanging at that stage can be due to incorrect boot command - trying to boot a kernel which requires an initrd. (not the only possibility).

In my case I use -

linux /vmlinuz root=/dev/sda3 video=efifb
initrd /initrd.img

If I try to boot without initrd I get your result.

On Tue, Jan 13, 2009 at 7:06 AM, Ziling Zhao <address@hidden> wrote:
On Fri, Jan 9, 2009 at 4:06 PM, peter cros <address@hidden> wrote:
It all seems a bit strange, 

 [Linux-bzImage, setup=0x2c00, size=0x2ff4701]
 Size=50 MB - very big kernel if it is true.

On Fri, Jan 9, 2009 at 5:36 PM, Bean <address@hidden> wrote:
On Fri, Jan 9, 2009 at 5:32 AM, Ziling Zhao <address@hidden> wrote:
> I haven't had much success with testing directly on the XServe that I have
> here, but I was able to get as far as getting grub to show up. However, it
> stalls after:
>      [Linux-bzImage, setup=0x2c00, size=0x2ff4701]
> Video mode: address@hidden
> Video frame buffer: f0000000
> Just as far as I can get the Mac Pro. I don't exactly have a macbook to test
> on, so I don't know if I'm just doing something wrong, or the Mac
> Pro/XServes are just different. Of course, using refit works on the mac
> pros, but applying the same process to the XServes didn't work.
> I've attached my .config just in case someone wants to look it over, I
> believe I have all the EFI stuff in there.


The video mode line doesn't seem to be valid, so I guess xserver is
indeed different.

Fedora also have efi loader, which is basically some hacking with grub
legacy. Perhaps you can try that and see if it works.


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I've just checked the kernel's size, and nothing is 50MB.

After fiddling, now it says. (for x86 kernel) 3.5MB

    [Linux-bzImage, setup=0x3000, size=0x367f70]
Video mode: address@hidden
Video frame buffer: f0000000

The x86_64 kernel has:

    [Linux-bzImage, setup=0x2c00, size=0x2ff470]
Video mode: address@hidden
Video frame buffer: f0000000

~Ziling Zhao

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