centOS install mysql

1).

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

mysql.sock 的地址不对，可以用ln -s /tmp/mysql/mysql.sock 到你的mysqld的mysql.sock文件。也可以修改/etc/my.cnf 文件追加

[mysql]socket=/data/mysql/mysql.sock

因为我的mysqld的sock文件在

/data/mysql/mysql.sock

2).

[mysql@localhost bin]$ ./mysql -uroot -p -S /data/mysql/mysql.sock
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

start mysql server command: mysqld_safe --user=mysql &

3). Can't create/write to file '/var/run/mysqld/mysqld.pid'

can't create PID file问题处理

can't create PID file问题处理

can't create PID file问题处理