[Mediawiki-l] trouble upgrading from version 1.11.2 to 1.12

[Aaron Bliss]

Hi all,
I'm having trouble upgrading from version 1.11.2 to version 1.12.  When 
running the update.php script from a shell, the database update ends 
with the following error:
failed with error code "Can't create table 
'./wikidb/protected_titles.frm' (errno: 121) (localhost)"

box is running centos 5 will all packages from the distro: mysql 5, php 
5, apache 2.2

The user upgrade is running as the mysql root user...Any ideas?  Thanks.

Aaron