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stage2: use atomic bind mounts

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This commit is contained in:
Michael Fellinger
2021-10-20 22:09:16 +02:00
committed by Jonathan Ringer
parent 726da12d8b
commit cb3a0f55e8
1 changed files with 5 additions and 3 deletions
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6
nixos/modules/system/boot/stage-2-init.sh
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@@ -62,9 +62,11 @@ chown -f 0:30000 /nix/store
chmod -f 1775 /nix/store chmod -f 1775 /nix/store
if [ -n "@readOnlyStore@" ]; then if [ -n "@readOnlyStore@" ]; then
if ! [[ "$(findmnt --noheadings --output OPTIONS /nix/store)" =~ ro(,|$) ]]; then if ! [[ "$(findmnt --noheadings --output OPTIONS /nix/store)" =~ ro(,|$) ]]; then
# FIXME when linux < 4.5 is EOL, switch to atomic bind mounts if [ -z "$container" ]; then
#mount /nix/store /nix/store -o bind,remount,ro
mount --bind /nix/store /nix/store mount --bind /nix/store /nix/store
else
mount --rbind /nix/store /nix/store
fi
mount -o remount,ro,bind /nix/store mount -o remount,ro,bind /nix/store
fi fi
fi fi