Re: [Mactel-linux-users] grub-efi configuration

[Tino K. <tin...@ti...>]

On Fri, Mar 19, 2010 at 20:11:08 +1100, Andy Botting wrote:
> > I meant that messing around with MS-DOS partitions and the pretty long
> > delay for legacy boot.
> 
> This annoyed me too on my Mac Mini, until I found this:
>   http://ubuntuforums.org/showpost.php?p=5166788&postcount=21
> 
> Quote:
> 
> How to single boot Linux without delay on Mac
> ---------------------------------------------------------
> 
> 1. If you have OSX installed, boot to it and mute sound. This assures
> that you won't be annoyed by the startup/poweron sound afterwards. I
> even used This software to be absolutely sure.
> Restart to confirm that no startup sound is audible.
> 
> 2. Prepare rEFIt boot disk (CD-RW).
> 
> 3. Boot Ubuntu install and remove all partitions, partition as you
> like for your Linux installation. Install Ubuntu, restart.
> 
> 4. Put in rEFIt CD and holding down alt key, boot rEFIT cd.
> Synchronize GUID and MBR. Restart.
> 
> 5. Insert OSX disc, boot from it, open terminal and enter following:
>    bless --device /dev/disk0s2 --setBoot --legacy --verbose
> where /dev/disk0s2 is the partition you installed grub (do 'diskutil
> list' to find out correct partition). Of course, '--verbose' is
> optional.
> 
> This makes Macbook EFI firmware boot your Linux installation in legacy
> mode without long delay (20s vs 3s).
> 
> 6. Restart your Macbook (don't forget to remove OSX disc). And boot
> directly to Linux!
> 
> 
> Hope this helps :)

Not really, as I want to keep the OS X installation.

Furthermore, gptsync was causing trouble the last time I used it. The
4th partition with my LVM was gone after this, because gptsync inserted
a dummy partition before the EFI partition.  I had to use fdisk to
recover it.  So gptsync is marked as "unreliable" for me, which is
another reason why I want to switch from grub-pc to grub-efi.

Regards,
Tino