@TimO
I follow your guid and it's ok, then i checks karaf and see there
is this mean i installed my binding?
and i have question
did you fix error : Unable to install bundle openhab-transport-serial
thanks you so much

@patrick-schaerer
hi patrick
i follow your guide with command to install MPC23017 Binding on openhab2
sudo chmod openhab.openhab /usr/share/openhab2/addons/org.openhab.binding.mcp23017-1.9.0.jar
but it not work and has information" chmod: invalid mode: ‘openhab.openhab’
then i take ":" instead of "." into account like
sudo chmod openhab:openhab /usr/share/openhab2/addons/org.openhab.binding.mcp23017-1.9.0.jar
but it same error

can you help me, please.
thanks you