Installation issue - setup of services on boot

I've spent most of today trying to get various bits of v4 CE to work. I'm up to the services enabling now, and have the serviceBatchMgr running fine.

However I'm stuck with sphinx stuff. I couldn't get anything else to run via chkconfig (CentOS 6) so put these commands into /etc/init.d/rc.local:
/opt/kaltura/app/scripts/sphinx_watch.sh start
which tells me that..

"Starting Sphinx Watch Daemon: OK"

BUT produces this error on loop:

"
Fri Oct 28 15:29:56 BST 2011 searchd on kaltura.hull-college.ac.uk was restarted
sudo: sorry, you must have a tty to run sudo
Exit code for stop was 1
sudo: sorry, you must have a tty to run sudo
"

ALSO

php /opt/kaltura/app/plugins/sphinx_search/scripts/populateFromLog.php /opt/kaltura/app/plugins/sphinx_search/config/kaltura-conf.php

produces this error on a loop when trying to run the sql:
"[2011-10-28 15:23:15]SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: NO)"

I've manually edited the config file to include the correct root password in the array that contains it (without specifying the config file, I got an error message telling me without the config file it wouldn't do anything).

Any ideas?

Thanks,
Dave