Re: grub-efi: fails to load linux

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 11/29/2010 05:29 PM, A Mennucc wrote:
> Il 16/11/2010 10:30, Vladimir 'Æ-coder/phcoder' Serbinenko ha scritto:
> > On 11/16/2010 10:05 AM, A Mennucc wrote:
> >> I tried to follow instructions in
> http://grub.enbug.org/TestingOnMacbook
> >> (with some important changes)
> >>
> > These instructions are outdated since grub-install now supports EFI
> >> Currently the stanzas in the menu seem to load the kernel, but then the
> >> video is not properly initialized;
> > Of course not, you didn't load any video driver. You need to include
> > efi_uga or efi_gop depending on your EFI
>
>
> Ah that makes for a lot of difference! Thanks a lot!
> I can now boot my MacBook using the grub-efi!
>
> I attach the grub.cfg that does work, and a dmesg.
>
> This is what works and what does not:
> -> I got a fullscreen grub menu, with Debian-themed
>    background (beautiful)
> -> I did boot OK with linux kernel 2.6.32-5-amd64
>   (I attach a dmesg)
> -> network and audio were fine
> -> I started X11 with 'Driver  "fbdev"' , it started OK,
>  but the colors are wrong, red and blue are inverted in the desktop...
>  whereas they are not inverted in youtube videos (weird fact!)
> -> I tried to start X11 with the nouveau drivers, but it crashed;
>   this may be due to the fact that the OS is i386 , not amd64
>   (and unfortunately I do not have time currently to reinstall it all)
> -> I tried to boot with linux kernel 2.6.32-5-686
>   but the keyboard did not work (and this is a big showstopper, since
>  I have a crypted /home)
>
>   ------------
>
> BTW I also have added to /etc/initramfs-tools/modules
> the following modules
>  fbcon
>  uvesafb
>  hid_apple
>  hid
>  applesmc
>  input_polldev
You need to add uhci_hcd and ehci_hcd as well
> (the  first two are indicated in
>  http://grub.enbug.org/TestingOnMacbook
>  the other I added to try to get keyboard support in i386 mode)
>
> But then I noted the following errors in dmesg
> [    4.337629] uvesafb: failed to execute /sbin/v86d
> [    4.337702] uvesafb: make sure that the v86d helper is installed and
> executable
> [    4.337776] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2)
> [    4.337840] uvesafb: vbe_init() failed with -22
> [    4.337906] uvesafb: probe of uvesafb.0 failed with error -22
>
> so it seems that 'uvesafb' is not doing anything useful, you may want to
> change http://grub.enbug.org/TestingOnMacbook
>
> a.

-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko

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