Create music directory is it doesn't exist

beaglebone.txt

@@ -7189,8 +7189,11 @@ Add the following:
 
 #+BEGIN_SRC: bash
 #!/bin/bash
+if [ ! -d /var/music ]; then
+  mkdir /var/music
+fi
 mount /dev/sda1 /var/music
-chown -R root:root /var/music
+chown root:root /var/music
 chown -R subsonic:subsonic /var/music/*
 #+END_SRC