ok, i was able to reproduce the error describe before when install kusu1.1/CenteOS5.3.

after installing kusu and all kits, starting addhost yields this error (which i did not encounter with the OCS5/RHEL5 install on a dell cluster)

File"/opt/kusu/lib/plugins/addhost/10-cacti.py", line 19 in ? from MySQLdb import *, ImportError: no module named MySQLdb

Digging around reveals the API for mysql for python is missing, so add it:

yum install MySQL-python

then test in interactive python

python
import MySQLdb
^D

now when starting addhost, it complains it can not connect to mysql database. Because checkconfig is off at all levels, mysql never started.

chkconfig mysqld on

you have to add user mysql, after this reset home dir for this user to /var/lib/mysql in /etc/passwd

adduser mysql

and perhaps make sure files are owned correctly

chown -R mysql:mysql /var/lib/mysql
chown -R mysql:mysql /var/run/mysql

and maybe remove (for a clean start)
rm -f /var/lock/subsys/mysqld

Now you can start addhost cleanly without a complaint.

-Henk