How to upgrade mysql with custombuild

To upgrade mysql using the custombuild script, do the following:

cd /usr/local/directadmin/custombuild
./build set mysql 5.1
./build set mysql_inst yes
./build set mysql_backup yes
./build update
./build mysql

Where mysql can be 5.0, 5.1 or 5.5.

A full raw sql backup will be run prior to the upgrade if you have mysql_backup=yes set.  It goes without saying, always make backups, either with this tool, or with other means.

After the mysql update, always recompile php.

./build php n