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Re: clang appends an extra string to Grub2 making it not work with MBR s
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From: |
Daniel Kiper |
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Subject: |
Re: clang appends an extra string to Grub2 making it not work with MBR systems |
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Date: |
Tue, 17 Jan 2023 18:50:52 +0100 |
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User-agent: |
NeoMutt/20170113 (1.7.2) |
On Tue, Jan 03, 2023 at 01:15:46AM +0000, Immolo via Grub-devel wrote:
> Using Gentoo with clang on a MBR system I have come across an extra string the
> content /lib/ld-linux.so.2 is being added to
> /usr/lib/grub/i386-pc/diskboot.img
> and /usr/lib/grub/i386-pc/boot.img taking it over 512 bytes meaning it can't
> be
> used on a MBR system.
> You can use truncate to remove the extra string then it will install and boot
> correctly but I am highlighting this here in hopes of a better fix.
> Steps to reproduce in Gentoo:
> 1. Use a clang stage3 on a MBR system.
> 2. emerge -va sys-boot/grub
> 3. grub-install /dev/sda
> Error:
> Installing for i386-pc platform.
> grub-install: error: diskboot.img size must be 512 bytes.
> Workaround:
> 1. truncate -s 512 /usr/lib/grub/i386-pc/diskboot.img
> 2. truncate -s 512 /usr/lib/grub/i386-pc/boot.img
> 3. grub-install /dev/sda
> I'm not really sure what files I can attach to help debugging this one but if
> you can think of any please ask for them.
It looks we will have a fix for this soon [1]...
Daniel
[1] https://lists.gnu.org/archive/html/grub-devel/2023-01/msg00085.html