解決用rpm安裝mysql時遇到系統庫沒有安裝的問題

這幾天做mysql的指令碼備份測試，在red hat linux 5.3下搭建mysql環境：
安裝mysq後l第一次啟動報錯：
110712 17:17:04 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
110712 17:17:04 [Note] Plugin 'FEDERATED' is disabled.
/usr/sbin/mysqld: Table 'mysql.plugin' doesn't exist
110712 17:17:04 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomic builtins
InnoDB: Compressed tables use zlib 1.2.3

google搜尋解決辦法：
執行 /usr/bin/mysql_install_db --user=mysql --datadir=/var/lib/mysql 重新安裝了mysql的系統庫 解決。
註：/var/lib/mysql為rpm包安裝mysql預設的資料檔案目錄