diff options
| -rw-r--r-- | nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh b/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh index 7da9c488f690..b9a42b2a196d 100644 --- a/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh +++ b/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh @@ -115,16 +115,18 @@ EOF addEntry $default default >> $tmpFile -# Add up to $numGenerations generations of the system profile to the menu, -# in reverse (most recent to least recent) order. -for generation in $( - (cd /nix/var/nix/profiles && ls -d system-*-link) \ - | sed 's/system-\([0-9]\+\)-link/\1/' \ - | sort -n -r \ - | head -n $numGenerations); do - link=/nix/var/nix/profiles/system-$generation-link - addEntry $link $generation -done >> $tmpFile +if [ "$numGenerations" -gt 0 ]; then + # Add up to $numGenerations generations of the system profile to the menu, + # in reverse (most recent to least recent) order. + for generation in $( + (cd /nix/var/nix/profiles && ls -d system-*-link) \ + | sed 's/system-\([0-9]\+\)-link/\1/' \ + | sort -n -r \ + | head -n $numGenerations); do + link=/nix/var/nix/profiles/system-$generation-link + addEntry $link $generation + done >> $tmpFile +fi mv -f $tmpFile $target/extlinux/extlinux.conf |