starting upgrade in directory /home/pi/YAAC
/home/pi/YAAC/images
/home/pi/YAAC/images/symbols
/home/pi/YAAC/plugins
/home/pi/YAAC/lib
/home/pi/YAAC/lib/rxtx-2.2pre2-bins
/home/pi/YAAC/lib/rxtx-2.2pre2-bins/i686-pc-linux-gnu
/home/pi/YAAC/lib/rxtx-2.2pre2-bins/mac-10.5
/home/pi/YAAC/lib/rxtx-2.2pre2-bins/win32
/home/pi/YAAC/lib/rxtx-2.2pre2-bins/win64
/home/pi/YAAC/lib/rxtx-2.2pre2-bins/x86_64-unknown-linux-gnu