I finally got this working. Here are the steps:
1. edited /etc/my.cnf and added ft_min_word_len=3 to [mysqld] section.
2. mysql --user=root --password=***** <wiki dbname>, then "repair table
<wiki_dbname>.searchindex;"
3. edit LocalSettings.php and add $wgDBmysql4 = $wgEnablePersistentLC = true;
4. edit AdminSettings.php to fill in admin username and password.
5. run php maintenance/updateSearchIndex.php.
6. restart mysqld and httpd.Thanks for all the advice.
Shannon
____________________________________________________________________________________
No need to miss a message. Get email on-the-go
with Yahoo! Mail for Mobile. Get started.
http://mobile.yahoo.com/mail