Gentoo Archives: gentoo-user

From: Bill Kenworthy <billk@×××××××××.au>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] UEFI boot, again
Date: Fri, 12 Oct 2012 13:23:42
Message-Id: 1350048135.11186.6.camel@rattus
In Reply to: Re: [gentoo-user] UEFI boot, again by "Stefan G. Weichinger"
1 On Fri, 2012-10-12 at 10:33 +0200, Stefan G. Weichinger wrote:
2 > Am 12.10.2012 03:52, schrieb Bill Kenworthy:
3 > >
4 > > I am currently fighting this on a macbook air ... efi is crap, at least
5 > > the old grub was much easier to fix when it went wrong ...
6 > >
7 > > if you are using grub 2 (I tried refit/refind/grub2/efi kernel and
8 > > finally settled on grub2)
9 > >
10 > > try:
11 > > mount /boot
12 > > mount /boot/efi
13 > > `grub2-install --target=x86_64-efi`
14 > > `grub2-mkconfig -o /boot/efi/EFI/gentoo/grub.conf`
15 > > # have to sort this out one day, which is it using?
16 > > `cp /boot/efi/EFI/gentoo/grub.conf /boot/grub2/grub.cfg`
17 > >
18 > > Sounds like your install line is what you are missing ...
19 >
20 > Thanks a lot, Bill, I will look into this later this day.
21 >
22 > What do mean by "install line" ?
23 >
24 > Stefan
25 >
26 >
27
28 The grub2-install command above - with efi you have to "announce" the
29 the information to boot with. I look at it as similar to grub
30 installing into the MBR, but thats a very loose metaphor :)
31
32 The problem you are describing might be that this "announcement" is
33 missing/corrupted.
34
35 The EFI directory is Apples (this is a macbook air), the grub2-mkconfig
36 searches for all the bootable kernels and builds a menu for them. I
37 think this is close to default efi in layout as "EFI" seems to be in the
38 spec.
39
40 BillK

Replies

Subject Author
Re: [gentoo-user] UEFI boot, again "Stefan G. Weichinger" <lists@×××××.at>