求教MYSQL无法启动问题

刚装好的mysql无法启动，下面是错误日志：
110829 05:43:00 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
110829 5:43:00 [Warning] Can't create test file /var/lib/mysql/hdc-scojp-db01.lower-test
110829 5:43:00 [Warning] Can't create test file /var/lib/mysql/hdc-scojp-db01.lower-test
^G/usr/libexec/mysqld: Can't change dir to '/var/lib/mysql/' (Errcode: 13)
110829 5:43:00 [ERROR] Aborting

110829 5:43:00 [Note] /usr/libexec/mysqld: Shutdown complete

110829 05:43:00 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

请教如何解决。

谢谢。

/var/lib/mysql/

你没有写文件的权限。