在linux centos下装的mysql无法启动？[

Starting MySQL.Manager of pid-file quit without updating fi[失败]
 

mysql/data/localhost.err
查看这个日志文件   找到对应的原因

101102 17:22:47 mysqld_safe Starting mysqld daemon with databases from usr/local/mysql/data
/usr/local/mysql/bin/mysqld: File './mysql-bin.index' not found (Errcode: 13)
101102 17:22:47 [ERROR] Aborting
101102 17:22:47 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete
101102 17:22:47 mysqld_safe mysqld from pid file /usr/local/mysql/data/localhost.localdomain.pid ended
就是my.cnf中没有指定数据库目录造成的