Date: Wed, 11 Aug 2021 23:25:17 +0000
To: "~alpine/devel@lists.alpinelinux.org" <~alpine/devel@lists.alpinelinux.org>
From: Phil Hofer <phil@sunfi.sh>
Reply-To: Phil Hofer <phil@sunfi.sh>
Subject: grub upgrade to 2.06-r0 changes menuentry order
Message-ID: <hfztFC5sd4iT8OuM5RCK0bmrheWOxub3u0I7ND3AIesbQKnue1rQNO6sc12HUzJ4C1xhXzR5kPfaNJJzu1_8jshH0BXWTFePRbmvxsjmkUs=@sunfi.sh>
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Hi folks,

I ran an `apk upgrade` on one of my systems that runs on edge this morning=
 and discovered that my system would no longer reboot.
The issue boiled down to the grub-mkconfig post-install hook changing the =
default boot menu entry.

One of the recent changes to grub introduced /etc/grub.d/30_uefi-firmware,=
 which introduces a menu entry for the UEFI interface.
For whatever reason, grub-mkconfig decided to make this menu entry the def=
ault rather than the menu entry from /etc/grub.d/10_linux.

The solution for my machine was just to run `grub-set-default 0`, but obvi=
ously that's not going to work for people who have more complex configurat=
ions.

I don't really know enough about grub to know what the fix is here, but ho=
pefully someone else does.

On a related note: this is the second time a grub-mkconfig has soft-bricke=
d on of my headless machines.
Is it possible to update grub without re-generating grub.cfg and grubenv?

Cheers,
Phil
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