--- a/usr/bin/byobu.in
+++ b/usr/bin/byobu.in
@@ -62,7 +62,7 @@ esac
 export BYOBU_BACKEND
 
 # Store the parent tty
-export BYOBU_TTY=$(tty)
+export BYOBU_TTY=$(readlink /proc/$$/fd/0)
 
 # Get the default window name
 [ -n "$BYOBU_WINDOW_NAME" ] || BYOBU_WINDOW_NAME=-
--- a/usr/bin/byobu-launch.in
+++ b/usr/bin/byobu-launch.in
@@ -30,8 +30,8 @@
 #    or edit your sshd_config, ssh_config, and set:
 #      $HOME/.bashrc:  export BYOBU_DISABLE=1
 
-_tty=$(tty)
-if [ "${_tty#/dev/ttyS}" != "$_tty" ]; then
+_tty=$(readlink /proc/$$/fd/0)
+if [ "${_tty#/dev/ttyS}" != "$_tty" ] && [ "${_tty#/dev/ttyAMA}" != "$_tty" ]; then
 	# Don't autolaunch byobu on serial consoles
 	# You can certainly run 'byobu' manually, though
 	echo