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    SubjectRe: [PATCH[RFC] Quirk macbook pro 6,2 into ahci mode
    On 07/18/2010 11:40 PM, Tino Keitel wrote:
    > On Sun, Jul 18, 2010 at 14:34:46 -0600, Jens Axboe wrote:
    > [...]
    >> See this is where I'm getting confused, since I'm not entirely sure what
    >> the boot process is. If I boot a DVD directly, then it's in piix mode.
    >> Booting through refit -> Linux, it's in piix mode. So my logic was that
    >> it is probably getting switched into ahci mode by the OSX boot loader or
    >> perhaps the driver does it there.
    > If this helps: I switched from grub-pc to grub-efi on my oldish Mac
    > mini Core 2 Duo (i945 chipset) and the hard disk used AHCI after this.
    > Suspend also works fine. So I would guess that the AHCI/PIIX difference
    > is caused by booting with EFI/legacy DOS bootblock, and the latter is
    > just done for Windows compatibility.

    Great! That sounds way better. DO you have a pointer to grub-efi? I'm
    finding some grub2 efi stuff with google, just want to make sure that is
    it. A grub 0.9x with efi would be preferable, I find grub2 to be horrible
    to work with in general...

    Jens Axboe

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