I have succuessfull update using osmosis.
I have following instruction from http://switch2osm.org/serving-tiles/building-a-tile-server-from-packages/

i have executed command : sudo -u www-data /usr/bin/openstreetmap-tiles-update-expire.sh

and process have finished with no error.

But now nothing update on my tile server.please check it out,
www.osmosa.net compare with www.openstreetmap.org

i can’t find new road on my tile server (www.osmosa.net) as on openstreetmap.org

How to solve this ?

Thanks