Centos 5.4 MySQL only 480 error messages, but it should contain at least 641 error messages.
Error message file '/usr/share/mysql/english/errmsg.sys' had only 480 error messages,
but it should contain at least 641 error messages.
#yum list installed | grep mysql
In my case, the both package mysql.i386 and mysql.x86_64 is installed. So, i have to remove the mysql.i386 package (old version) and reinstall mysql.x86_64.
#yum remove mysql.i386
#yum install --enablerepo=remi mysql.x86_64
#service mysqld start
problem solved