grub2 EFI boot loader internal/external booting

[ngativ]

I'd finally installed grub-efi on my macbook 2.1 an d now i have snow leopard and ubuntu lucid. The only problem now is that i can not use bright keys under kde, it fails to adjust the screen brightness. (but using grub-pc works)

Here's my grub.cfg:

set timeout=100


menuentry "MacOSX Snow Leopard" {
  chainloader /usr/standalone/i386/boot.efi   
}
 
menuentry "Linux" {
  loadbios (hd0,5)/boot/vbios.bin (hd0,5)/boot/int10.bin
  linux (hd0,5)/boot/vmlinuz-2.6.32-22-generic root=/dev/sda5 ro  video=efifb    quiet splash
  initrd (hd0,5)/boot/initrd.img-2.6.32-22-generic
}

I there any problem using the load bios option along the kms kernel module? i cannot adjust my lcd brightness !

[jamesixgun]

Have you tried pommed? It got the brightness keys working for me, but that was in Gnome, so I don't know if it's available for KDE.

I have no idea about editing your bios or kernel or anything.

Hopefully someone more knowledgeable in the code arts will come along with better suggestions.

[scriptedSheep]

hej folks,

I got a little problem using a Ubuntu 10.04 Lucid Lynx Installation, put to an external hard drive, and my MacBook. Like in many threads mentioned I already installed rEFIt successfully...The problem: My bootloader, that means rEFIt recognizes the Linux-Partition on the plugged-in external HD, and when I select it, the penguine appears for some seconds. Then "the dash" appears in the upper left corners, it appears to blink some times, and exactly in the moment where I get happy that it seems to work, Windows (found on my internal HD, installed vie BootCamp side by side with Snow Leopard...) is starting to boot! I tried many things, I reinstalled GRUB several times, same try with the MBR of the external HDR and more on....Now I found myself reading through the german Ubuntu-Wiki and I discovered this project, used mainly when setting up a Live-USB media. I wondered if it could be needed/useful to install the grub2 EFI boot loader on my external HD and if yes, how I can manage this. Or do you guys got any other ideas solving my problems? I would be really, really, really happy to finally start using Ubuntu, I even can´t wait for it, so please help me folks

[scriptedSheep]

Situation changed a little: I managed it to install Ubuntu correctly on my ext. HD, I´m also able to boot into GRUB right now...But like always, I got another psroblem...when selecting an entry related to my Ubuntu-installation, I got the following error which I´m not really able to fix by myself, so please help me guys

Unknown Graphic card: 64710de
[Linux-bzImage, setup=0x3400, zize=0x3bef40]
Videomode 1440-900:32
Frame buffer base: 0xb0010000
Video line length: 8192
[Initrd, addr=0x3fa6f00, size=0x590e71]

[Elv13]

I compiled an image (tried with both 1686 and x86_64 target) of grub 1.98 and it work with rEFIt! But when I try to bless it with

bless --folder=/ --file=/efi/grub/grub.efi --setBoot

MacOSX start without showing a menu. What am I doing wrong?

[peterisza]

Hi!

I'm facing the same problem (Macbook Pro 7,1, Geforce 320M). I have tried loading a prerecorded video BIOS image, but it didn't help. Have you found any solution?

(**) May 10 15:47:17 NVIDIA(0): Enabling RENDER acceleration
(II) May 10 15:47:17 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) May 10 15:47:17 NVIDIA(0):     enabled.
(EE) May 10 15:47:17 NVIDIA(0): Failed to initialize the display subsystem for the NVIDIA
(EE) May 10 15:47:17 NVIDIA(0):     graphics device!
(EE) May 10 15:47:17 NVIDIA(0): Failed to determine chip display capabilities
(EE) May 10 15:47:17 NVIDIA(GPU-0): Failed to get supported display device(s)
(EE) May 10 15:47:17 NVIDIA(0): Failed to initialize dac HAL

[Taoye]

Has anyone had any success with Lucid on the macbook pro 5,5?

I set up my hard drive like this:
/dev/sda1 HFS+ 1GB
/dev/sda2 ext4 127GB

and put grub2 (which I compiled from source) on the first partition and blessed it with OS X. Grub2 starts fine, and it loads the kernel and initrd, but it freezes when I enter the boot command.

root=hd0,1
linux /vmlinuz-2.6.32-24-generic root=/dev/sda2 rootfstype=ext4 video=efifb
initrd /initrd.img-2.6.32-24-generic
boot
_

I've tried it with fix_video, fakebios and loadbios using a vbios and int10 bios captures... nothing seems to work. Maybe it's an issue with this kernel: Fedora 13 boots fine using a 2.6.33 kernel... so tonight I'll try Karmic and Maverick and see if something else will work.

Any ideas?

Thanks,

[metatechbe]

I've tried it with fix_video, fakebios and loadbios using a vbios and int10 bios captures... nothing seems to work. Maybe it's an issue with this kernel: Fedora 13 boots fine using a 2.6.33 kernel... so tonight I'll try Karmic and Maverick and see if something else will work.

Taoye,

It looks like I have a similar problem.
I have rEFIt 0.14, Ubuntu 10.04 32-bit and grub-1.98 downloaded and compiled from gnu.org, and I added in my kernel parameters :

video=efifb:base:0xc0030000,stride:2048,width:1440,height:900

Grub seems to hang at the end :

ROM image is present
   [Linux-bzImage, setup=0x3400, size=0x3d56c0]
Video mode: 1440x900-32@0
Display Controller: 2:0.0
Device id: 64710de
MMIO(0): 0xe4000000
VMEM(1): 0xc0000000
MMIO(3): 0xe2000000
Frame buffer base : 0xc0030000
Video line length: 8192
   [Initrd, addr=0x3f7fff000, size=0x7f0349]

Any idea ?

metatech

[engle.aj]

Has anyone been able to get Fedora 13 Live to boot from USB on a mac using Grub 2?

Thanks in advance.

[Sidolin]

Hey, I just wanted to tell everyone here that using the patch from this thread (http://140.211.166.79/mailarchive/li...4607435/thread) I am able to boot without the noefi option on a mbp 6,2. dmidecode, applesmc etc. work great.