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nixos/systemd-tmpfiles: create /etc/mtab via environmemt.etc instead of tmpfiles

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This enables an immutable /etc via `system.etc.overlay.mutable = false`.
This commit is contained in:
nikstur 2024-08-07 16:09:52 +02:00
parent b663d72f08
commit 9e720a5881
3 changed files with 10 additions and 2 deletions
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6
nixos/modules/system/boot/systemd/tmpfiles.nix
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@ -200,6 +200,10 @@ in
rm -f $out/${removePrefix "tmpfiles.d/" name}
'') config.system.build.etc.passthru.targets;
}) + "/*";
"mtab" = {
mode = "direct-symlink";
source = "/proc/mounts";
};
};
systemd.tmpfiles.packages = [
@ -244,13 +248,11 @@ in
"L+ /nix/var/nix/gcroots/booted-system 0755 root root - /run/booted-system"
"d /run/lock 0755 root root - -"
"d /var/db 0755 root root - -"
"L /etc/mtab - - - - ../proc/mounts"
"L /var/lock - - - - ../run/lock"
# Boot-time cleanup
"R! /etc/group.lock - - - - -"
"R! /etc/passwd.lock - - - - -"
"R! /etc/shadow.lock - - - - -"
"R! /etc/mtab* - - - - -"
"R! /nix/var/nix/gcroots/tmp - - - - -"
"R! /nix/var/nix/temproots - - - - -"
];