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Re: [PATCH] New frame buffer detection algorithm and loadrom command for


From: Bean
Subject: Re: [PATCH] New frame buffer detection algorithm and loadrom command for efi platform
Date: Thu, 26 Mar 2009 14:56:03 +0800

Hi,

This is another update, it contains the following changes with regards
to the previous one:

1, Move loadbios command to commands/efi directory.
2, loadbios support an optional second parameter which is the int10
vector dump file.
3, The linux command enables frame buffer by default, so you don't
need video= option anymore.
4. New command fix_video to fix video register issue with efi. With
this, you can boot to console mode with agp enabled.
5, New shell script grub-dumpbios which can be used to generate the
bios dump from pc mode.

As the commands usage have changed in the previous patches, here is a
summary of what you should do with this latest patch:

1, Boot without bios dump.

This is the commands to use:

search --set /vmlinuz
fix_video
fakebios
linux /vmlinuz root=/dev/sdb1
initrd /initrd.img

2, Boot with bios dump.

First, boot to pc mode, then use script grub-dumpbios to generate the
dump files:

sudo grub-dumpbios -o /boot/

video bios dump is in vbios.bin, int10 vector is in int10.bin. /boot/
is the output directory.

Then, use the following commands in grub2:
search --set /vmlinuz
fix_video
loadbios /boot/vbios.bin /boot/int10.bin
linux /vmlinuz root=/dev/sdb1
initrd /initrd.img

Moreover, if you're booting 2.6.27-28, amd64 kernel, you need to add
noefi option.

-- 
Bean

Attachment: loadbios_3.diff
Description: Text Data


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