20010521, Zhangfan XING You must have read ./README and completed installing/updating all rpms provided here. Configure LAS is easy: (1) become root (2) get in csh or tcsh, do # source /usr/local/ferret/ferret_paths (3) start httpd daemon # /etc/rc.d/init.d/httpd start (4) start mysqld daemon # /etc/rc.d/init.d/mysqld start (5) keep in mind that The location of MySQL installation is /usr (6) untar las5.0.tar.gz or similar and run # ./configure or # ./configure -compare By now, you must have saved quite a lot of time, please spend some on http://ferret.wrc.noaa.gov/Ferret/LAS/README.html