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Re: [PATCH] x86_64 EFI support for grub2

From: Bean
Subject: Re: [PATCH] x86_64 EFI support for grub2
Date: Thu, 5 Jun 2008 19:40:17 +0800


Ok, I solve this now, the new patch is capable of booting Linux from
x86_64 EFI. In theory, it should also be able to boot from 32-bit EFI,
but I haven't verified it yet.

You should add root=/dev/sdaX command line so that it can find the
root partition. After booting, it may seem hang, just give it some
time, it could still be running. After a short while, you should see a
scramble screen, that's it, linux have started !

The reason of scramble screen is that it can't find the proper frame
buffer driver, you can add the following line to .config


and recompile the kernel. You should also add parameter like
"video=fbimac:macbook" to the command line. For more information,
check out Documentation/fb/imac.txt in the kernel source.

BTW, you need 2.6.25 if you are using x86_64 firmware. 2.5.24 is not
working ! It actually cause me a lot of time to figure this out.


Attachment: efi_2.diff
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