From: Marius Bakke <mbakke@fastmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel@gnu.org
Subject: Re: [PATCH 6/6] gnu: Add grub-efi.
Date: Sun, 18 Dec 2016 15:36:36 +0100 [thread overview]
Message-ID: <87lgvdnw23.fsf@kirby.i-did-not-set--mail-host-address--so-tickle-me> (raw)
In-Reply-To: <87y3zdo6cx.fsf@gnu.org>
[-- Attachment #1: Type: text/plain, Size: 2558 bytes --]
Ludovic Courtès <ludo@gnu.org> writes:
>> Relatedly, I think the way to build a 'multi-grub' is to have one
>> expression for each supported grub platform, and then consolidate
>> out/lib/grub from each.
>
> So in essence, GRUB itself supports only one platform at a time?
AFAICT yes. Gentoo works around this by running the build for each
user-specified platform and combining the outputs. Most other distros
just carry separate grub-pc and grub-efi packages.
>>> Now there are things I didn’t quite get. Apparently you’re supposed to
>>> have a /boot/efi as a vfat partition, and ‘grub-install’ is supposed to
>>> detect it and install the EFI stuff, or so I thought (info "(grub)
>>> Installing GRUB using grub-install").
>>>
>>> However, ‘grub-install’ still seems to be installing for “i386-pc”
>>> instead of EFI.
>>>
>>> What am I missing?
>>
>> IIRC grub-install will detect and install for the running mode (pc, efi,
>> etc). So in a classic chicken-and-egg situation, you need to be booted
>> with UEFI mode for grub to select the correct installation platform!
>
> My understanding is that it would install for UEFI if it fines
> /boot/efi or if --efi-directory is passed.
I'm not so sure, but it's been a while since I played around with this.
At least building the 'gnu/system/install.scm' image works fine when
passing --efi-directory (see the bottom two patches from
https://lists.gnu.org/archive/html/guix-devel/2016-12/txtchTym4QVKr.txt ),
and I think it would choose i386-pc even if x86_64-efi was available
since the VM boots in BIOS mode.
Tangentially, I'm not aware of any way to build a "hybrid" ISO image
using only grub. I've started work on packaging syslinux/isolinux which
is what Debian uses for their hybrid UEFI/BIOS install image.
> BTW, as far as I’m concerned, most of the other patches are ready:
>
> https://lists.gnu.org/archive/html/guix-devel/2016-11/msg00303.html
> https://lists.gnu.org/archive/html/guix-devel/2016-11/msg00304.html
>
> Could you push them?
Done.
> The remaining issue is how to run fsck for vfat.
>
> Currently I still have a preference for something like what I suggested
> at:
>
> https://lists.gnu.org/archive/html/guix-devel/2016-12/msg00095.html
>
> Thoughts?
This approach looks better than the one I started working on. It's not
clear to me how to pass the device to these procedures, or how
'check-file-system' will know which checker to use. We should try to
have this in place before 0.13 :-)
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 487 bytes --]
next prev parent reply other threads:[~2016-12-18 14:36 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-05 12:55 Initial vfat support Marius Bakke
2016-11-05 12:55 ` [PATCH 1/6] gnu: Add fatfsck-static Marius Bakke
2016-11-05 16:01 ` Hartmut Goebel
2016-11-05 16:11 ` Marius Bakke
2016-11-06 21:42 ` Ludovic Courtès
2016-11-05 12:55 ` [PATCH 2/6] linux-initrd: Support FAT filesystems Marius Bakke
2016-11-06 21:44 ` Ludovic Courtès
2016-11-05 12:55 ` [PATCH 3/6] file-systems: Suppress fsck status completion bar Marius Bakke
2016-11-06 21:47 ` Ludovic Courtès
2016-11-07 0:00 ` Marius Bakke
2016-11-07 8:59 ` Ludovic Courtès
2016-11-07 9:29 ` Marius Bakke
2016-11-07 10:15 ` Danny Milosavljevic
2016-12-17 9:40 ` Marius Bakke
2016-12-18 10:57 ` Ludovic Courtès
2016-11-05 12:55 ` [PATCH 4/6] gnu: Add efivar Marius Bakke
2016-11-06 21:51 ` Ludovic Courtès
2016-11-05 12:55 ` [PATCH 5/6] gnu: Add efibootmgr Marius Bakke
2016-11-06 21:52 ` Ludovic Courtès
2016-11-05 12:55 ` [PATCH 6/6] gnu: Add grub-efi Marius Bakke
2016-11-05 18:58 ` Leo Famulari
2016-11-05 19:38 ` Marius Bakke
2016-11-06 22:00 ` Ludovic Courtès
2016-11-07 0:19 ` Marius Bakke
2016-11-07 9:00 ` Ludovic Courtès
2016-11-07 9:23 ` Marius Bakke
2016-12-16 17:09 ` Ludovic Courtès
2016-12-16 17:16 ` Danny Milosavljevic
2016-12-16 17:33 ` Marius Bakke
2016-12-18 10:54 ` Ludovic Courtès
2016-12-18 14:36 ` Marius Bakke [this message]
2016-12-19 10:48 ` Ludovic Courtès
2016-12-19 15:49 ` Marius Bakke
2016-12-19 21:16 ` Ludovic Courtès
2016-12-19 22:48 ` Marius Bakke
2016-12-20 13:53 ` Ludovic Courtès
2016-12-20 14:42 ` Marius Bakke
2016-12-20 16:53 ` Ludovic Courtès
2016-12-20 18:43 ` Marius Bakke
2016-12-21 9:12 ` Ludovic Courtès
2016-12-21 18:55 ` Danny Milosavljevic
2017-01-03 16:06 ` Ludovic Courtès
2017-01-03 16:16 ` Chris Marusich
2017-01-04 22:18 ` Ludovic Courtès
2016-12-17 9:38 ` Marius Bakke
2016-12-17 10:15 ` Marius Bakke
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://guix.gnu.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87lgvdnw23.fsf@kirby.i-did-not-set--mail-host-address--so-tickle-me \
--to=mbakke@fastmail.com \
--cc=guix-devel@gnu.org \
--cc=ludo@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/guix.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).