1、[root@localhost bin]# ./mysqld_safe –skip-grant-tables
出现以下信息：
Installing MySQL system tables…
090724 12:05:13 [Warning] option ‘max_join_size’: unsigned value 18446744073709551615 adjusted to 4294967295
090724 12:05:13 [Warning] option ‘max_join_size’: unsigned value 18446744073709551615 adjusted to 4294967295
ERROR: 1062 Duplicate entry ‘localhost-’ for key 1
090724 12:05:13 [ERROR] Aborting
090724 12:05:13 [Note] /usr/local/mysql5/libexec/mysqld: Shutdown complete
Installation of system tables failed!
Examine the logs in /var/lib/mysql5 for more information.
You can try to start the mysqld daemon with:
/usr/local/mysql5/libexec/mysqld –skip-grant &
and use the command line tool
/usr/local/mysql5/bin/mysql to connect to the mysql
database and look at the grant tables:
shell> /usr/local/mysql5/bin/mysql -u root mysql
mysql> show tables
Try ‘mysqld –help’ if you have problems with paths. Using –log
gives you a log in /var/lib/mysql5 that may be helpful.
The latest information about MySQL is available on the web at
Please consult the MySQL manual section: ‘Problems running mysql_install_db’,
and the manual section that describes problems on your OS.
Another information source is the MySQL email archive.
Please check all of the above before mailing us!
And if you do mail us, you MUST use the /usr/local/mysql5/bin/mysqlbug script!
2、[root@localhost bin]# /usr/local/mysql5/libexec/mysqld –skip-grant &
出现以下信息：
[1] 6633
[root@localhost bin]# 090724 12:05:34 [Warning] option ‘max_join_size’: unsigned value 18446744073709551615 adjusted to 4294967295
090724 12:05:34 [Warning] option ‘max_join_size’: unsigned value 18446744073709551615 adjusted to 4294967295
090724 12:05:34 [ERROR] Fatal error: Please read “Security” section of the manual to find out how to run mysqld as root!
090724 12:05:34 [ERROR] Aborting
090724 12:05:34 [Note] /usr/local/mysql5/libexec/mysqld: Shutdown complete
[1]+ Exit 1 /usr/local/mysql5/libexec/mysqld –skip-grant
解决办法：在/etc/my.conf中的mysqld这一节中加入：user=mysql
