mysql 실행하자 마자 바로 죽습니다..

030828 11:21:42 mysqld started
^G/usr/local/mysql/libexec/mysqld: File './xxx-bin.index' not found (Errcode: 13)
030828 11:21:42 Could not use xxx-bin for logging (error 13)
030828 11:21:42 /usr/local/mysql/libexec/mysqld: Can't find file: './mysql/host.frm' (errno: 13)
030828 11:21:42 mysqld ended

err파일의 내용은 위와 같습니다..

실행을 하면 다음과 같습니다.
/usr/local/mysql/bin/safe_mysqld &
[1] 15191
[root@xxx data]# Starting mysqld daemon with databases from /usr/local/mysql/data
030828 11:26:26 mysqld ended

[1]+ Done /usr/local/mysql/bin/safe_mysqld