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install: support grub2/30_console.cfg for console replacement #1360

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merged 1 commit into from
Dec 15, 2023

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dustymabe
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@dustymabe dustymabe commented Dec 15, 2023

Upstream we are starting to use grub configs that are partially baked into bootupd [1] and partially baked into the image via the OS vendor (in our case a grub2/30_console.cfg file [2]). Let's look first to see if grub2/30_console.cfg exists when trying to write new console settings before falling back to grub2/grub.cfg.

[1] coreos/bootupd#543
[2] coreos/fedora-coreos-config#2769

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@cgwalters cgwalters left a comment

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Looks sane to me

name = "grub2/grub.cfg";
path = mountpoint.join(name);
}
let grub_cfg = fs::read_to_string(&path).context(format!("reading {}", name))?;
let new_grub_cfg = update_grub_cfg_console_settings(&grub_cfg, &grub_commands)
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Very very minor but style is usually to use .with_context(|| format!(...)) to avoid string allocation even on non-error paths.

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ok I updated it.. shamefully I know very little about rust, but have been meaning to change that for a long time :(

Upstream we are starting to use grub configs that are partially
baked into bootupd [1] and partially baked into the image via
the OS vendor (in our case a grub2/30_console.cfg file [2]). Let's
look first to see if grub2/30_console.cfg exists when trying to
write new console settings before falling back to grub2/grub.cfg.

[1] coreos/bootupd#543
[2] coreos/fedora-coreos-config#2769
@dustymabe
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local tests with this are looking good.

@dustymabe dustymabe changed the title install: support grub2/50_coreos.cfg for console replacement install: support grub2/30_console.cfg for console replacement Dec 15, 2023
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@prestist prestist left a comment

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LGTM

@prestist prestist merged commit 3e96556 into coreos:main Dec 15, 2023
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3 participants