diff --git a/nixos/modules/system/boot/loader/grub/install-grub.pl b/nixos/modules/system/boot/loader/grub/install-grub.pl index a36b3c180eb4..a09c5dc47618 100644 --- a/nixos/modules/system/boot/loader/grub/install-grub.pl +++ b/nixos/modules/system/boot/loader/grub/install-grub.pl @@ -407,6 +407,29 @@ addEntry("NixOS - Default", $defaultConfig); $conf .= "$extraEntries\n" unless $extraEntriesBeforeNixOS; +# Find all the children of the current default configuration +# Do not search for grand children +my @links = sort (glob "$defaultConfig/fine-tune/*"); +foreach my $link (@links) { + + my $entryName = ""; + + my $cfgName = readFile("$link/configuration-name"); + + my $date = strftime("%F", localtime(lstat($link)->mtime)); + my $version = + -e "$link/nixos-version" + ? readFile("$link/nixos-version") + : basename((glob(dirname(Cwd::abs_path("$link/kernel")) . "/lib/modules/*"))[0]); + + if ($cfgName) { + $entryName = $cfgName; + } else { + $entryName = "($date - $version)"; + } + addEntry("NixOS - $entryName", $link); +} + my $grubBootPath = $grubBoot->path; # extraEntries could refer to @bootRoot@, which we have to substitute $conf =~ s/\@bootRoot\@/$grubBootPath/g;