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: Saturday, 09 June, 2012 14:50
> To: address@hidden
> Subject: Re: FW: grub-efi with latest mac mini
> >>>>>> What does grub-probe -t fs /boot/grub say Do you run everything
> >>>>>> as
> >>>> root?
> >>>>>
> >>>>> $ sudo grub-probe -t fs /boot/grub
> >>>>> Error: failed to get canonical path of /boot/grub $ sudo
> >>>>> grub-probe -t fs /efi/boot
> >>>>> Error: failed to get canonical path of /efi/boot
> >>>>>
> >>>>
> >>>> Do you have those directories?
> >>>
> >>> Yes:
> >>> /mnt/sda1/EFI/BOOT (fat)
> >>> /mnt/sda2/boot/grub (hfs+)
> >>
> >> /mnt/sda1/EFI/BOOT isn't /efi/boot.
> >
> > Agreed, but it didn't find /mnt/sda2/boot/grub either...
> >
> 
> I don't have the exact output for those. Do you still have any problem with
> grub-install.

I didn't try it again - I note that it did not create 
/mnt/sda1/EFI/BOOT/grub/fonts, nor copy unicode.pf2 into /fonts

> >>>>> Insmod videotest
> >>>>> Insmod efi_gop
> >>>>> Videotest
> >>>>> [drops down a line, but no further output] <ctrl c> Color 0:
> >>>>> ff000000 Color 1: ffa80000 ...
> >>>>> Color 15: fffefefe
> >>>>>
> >>>>> Note that the video is output via hdmi -> dvi adapter that came
> >>>>> with the mac mini
> >>>>
> >>>> What does "videoinfo" say? Does "videotext" work if you set
> >>>> gfxmode="800x600" explicitly? (try other resolutions as well)
> >>>>
> >>> videoinfo
> >>> List of supported video modes:
> >>> Legend: mask/position = red/green/blue/reserved
> >>> Adapter: `EFI GOP driver`:
> >>> 0x000 1280 x 1024 x 32 direct color, mask 8/8/8/8 pos: 16/8/0/24
> >>>
> >>> gfxmode=1280x1024x32
> >>>
> >>
> >> But does it make videotest work?
> >
> > No, same thing - after <ctrl c> I get color 0, etc
> >
> 
> Hm, sounds like there is a firmware bug in GOP. What a surprise.

insmod font
loadfont unicode
set debug=video
videotest
video/efi_gop.c 388: GOP: keeping mode 0
video/efi_gop.c 496: GOP: initializing FB @ 0x91000000 1280x1024x32
video/efi_gop.c 521: GOP: success
<ctrl c>
color 0...

> >> USB problem is on Linux side.
> >
> > A combination of rEFIt/grub classic on the 4th (ext3) partition boots the
> same vmlinuz/initrd without problems.
> 
> You probably boot in BIOS mode with GRUB Legacy which results in
> completely different hardware init and presence of BIOS tables in
> 0xa0000-0x100000 range. This probably makes difference but the issue is
> either Linux or Apple hardware init.
> 
I note the hd controller does not start in ahci mode with grub legacy, but 
otherwise OK.

Should the fakebios command help with grub2-efi?