请教:mysql 无法启动

jingyuanke

050516 16:29:52 mysqld started
^G/usr/local/mysql/bin/mysqld: Can't read dir of '/root/tmp/' (Errcode: 13)
^G/usr/local/mysql/bin/mysqld: Can't create/write to file '/root/tmp/ibeHmRMs' (
Errcode: 13)
050516 16:29:52 InnoDB: Error: unable to create temporary file; errno: 13
050516 16:29:52 [ERROR] Can't init databases
050516 16:29:52 [ERROR] Aborting

050516 16:29:52 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete

050516 16:29:52 mysqld ended

NICKY.BOY

shell>; groupadd mysql
     shell>; useradd -g mysql mysql
     shell>; cd /usr/local
     shell>; gunzip < /PATH/TO/MYSQL-VERSION-OS.tar.gz | tar xvf -
     shell>; ln -s FULL-PATH-TO-MYSQL-VERSION-OS mysql
     shell>; cd mysql
     shell>; scripts/mysql_install_db --user=mysql
     shell>; chown -R root  .
     shell>; chown -R mysql data
     shell>; chgrp -R mysql .
     shell>; bin/mysqld_safe --user=mysql &