RE: FW: grub-efi with latest mac mini

[John Frankish]

> > -----Original Message-----
> > From: address@hidden
> > [mailto:grub-devel-
> > address@hidden On Behalf Of Vladimir 'f-
> > coder/phcoder' Serbinenko
> > Sent: Monday, 11 June, 2012 01:39
> > To: address@hidden
> > Subject: Re: FW: grub-efi with latest mac mini
> >
> > Can you give as exact reference about your mac?
> >
> > --
> > Regards
> > Vladimir 'φ-coder/phcoder' Serbinenko
> 
> From dmesg:
> 
> DMI 2.4 present.
> DMI: Apple Inc. Macmini5,3/Mac-7BA5B2794B2CDB12, BIOS
> MM51.88Z.0075.B00.1106271442 06/27/2011 Mac mini server - quad-core i7 -
> 8gb ram - single 250gb ssd

For some reason, I don't seem to be able to leave this alone...

Some more testing:

1. I can boot from a usb stick on a dell latitude e6220 using uefi without 
problems. If I take the same usb stick
and try to boot on the mac mini using efi from power-on <alt gr>, it boots to 
X, but the usb keyboard/mouse do not work. 

2. Using the same version of grub2.00~beta6, installed in the same way, on the 
first (gpt) partition of the mac mini hd (ssd),
it appears to start booting, but the screen remains blank.

3. With both usb stick/hd (ssd) boot on the mac mini, the grub-efi command line 
works and the following switches video mode:

insmod font
loadfont unicode
insmod efi_gop
insmod gfxterm
set gfxterm=auto
terminal_output gfxterm

With the usb stick boot, nothing is echoed to the screen after boot from the 
grub prompt until the kernel kmode driver loads,
with the hd (ssd) boot nothing is echoed to the screen at all.

What I have difficulty understanding is that the usb stick boot fails in one 
way and the hd (ssd) boot fails in a different way on
the same machine. Note that grub.cgf was copied from the usb stick to the hd 
(ssd) and the only change made was the
location of the kernel/initrd - (hd2,gpt2) -> (hd1,gpt4)

Any ideas?