diff --git a/lib/util-iso-mount.sh b/lib/util-iso-mount.sh
index 82e59ee..3f1c36a 100644
--- a/lib/util-iso-mount.sh
+++ b/lib/util-iso-mount.sh
@@ -34,53 +34,6 @@ track_fs() {
     mount "$@" && FS_ACTIVE_MOUNTS=("$5" "${FS_ACTIVE_MOUNTS[@]}")
 }
 
-# $1: new branch
-# mount_fs_root(){
-#     FS_ACTIVE_MOUNTS=()
-#     mkdir -p "${mnt_dir}/work"
-#     mkdir -p "$1"
-#     track_fs -t overlay overlay -olowerdir="${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
-# }
-#
-# mount_fs_desktop(){
-#     FS_ACTIVE_MOUNTS=()
-#     mkdir -p "${mnt_dir}/work"
-#     mkdir -p "$1"
-#     track_fs -t overlay overlay -olowerdir="${work_dir}/desktopfs":"${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
-# }
-#
-# mount_fs_live(){
-#     FS_ACTIVE_MOUNTS=()
-#     mkdir -p "${mnt_dir}/work"
-#     mkdir -p "$1"
-#     track_fs -t overlay overlay -olowerdir="${work_dir}/livefs":"${work_dir}/desktopfs":"${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
-# }
-#
-# mount_fs_net(){
-#     FS_ACTIVE_MOUNTS=()
-#     mkdir -p "${mnt_dir}/work"
-#     mkdir -p "$1"
-#     track_fs -t overlay overlay -olowerdir="${work_dir}/livefs":"${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
-# }
-#
-# mount_fs_select(){
-#     local fs="$1" pkglist="$2"
-#     if [[ -f "$pkglist" ]]; then
-#         mount_fs_desktop "$fs"
-#     else
-#         mount_fs_root "$fs"
-#     fi
-# }
-#
-# mount_fs_select_boot(){
-#     local fs="$1" pkglist="$2"
-#     if [[ -f "$pkglist" ]]; then
-#         mount_fs_live "$fs"
-#     else
-#         mount_fs_net "$fs"
-#     fi
-# }
-
 mount_fs(){
     FS_ACTIVE_MOUNTS=()
     local lower= upper="$1" work="$2" pkglist="$3"
@@ -92,15 +45,11 @@ mount_fs(){
         desktopfs) lower="$rootfs" ;;
         livefs|mhwdfs)
             lower="$rootfs"
-            if [[ -f $pkglist ]];then
-                lower="$desktopfs":"$rootfs"
-            fi
+            [[ -f $pkglist ]] && lower="$desktopfs":"$rootfs"
         ;;
         bootfs)
             lower="$livefs":"$rootfs"
-            if [[ -f $pkglist ]];then
-                lower="$livefs":"$desktopfs":"$rootfs"
-            fi
+            [[ -f $pkglist ]] && lower="$livefs":"$desktopfs":"$rootfs"
         ;;
     esac
     track_fs -t overlay overlay -olowerdir="$lower",upperdir="$upper",workdir="${mnt_dir}/work" "$upper"