--- a/archiso/mkarchiso	2012-06-11 11:01:54.000000000 +0200
+++ b/archiso/mkarchiso	2012-06-20 15:19:58.033289017 +0200
@@ -298,7 +298,7 @@ _mksfs () {
 
 # Makes a filesystem from a source directory.
 # $1: Source directory
-# $2: Target filesystem type (ext4 | ext3 | ext2 | xfs)
+# $2: Target filesystem type (btrfs | ext4 | ext3 | ext2 | xfs)
 # $3: Size of target filesystem. Can be an absolute value in MiB, or relative value of desired free space (1% - 99%)
 _mkfs () {
     local _src="${1}"
@@ -336,6 +336,9 @@ _mkfs () {
         _qflag="-q"
     fi
     case "${_fs_type}" in
+        btrfs)
+            mkfs.btrfs --mixed "${_fs_img}"
+            ;;
         ext4)
             mkfs.ext4 ${_qflag} -O ^has_journal -m 0 -F "${_fs_img}"
             tune2fs -c 0 -i 0 "${_fs_img}" &> /dev/null