mysql5.6 密码重置_mysql5.6安装以及密码重置

mysql卸载文章：http://hi.baidu.com/cosphp/item/c18c5c88ed3a71ead1f8cdf1

查看是否有旧版本mysql

rpm -qa|grep mysql

CentOS卸载旧版本mysql

yum remove mysql mysql-server mysql-libs compat-mysql51

rm -rf /data/soft/mysql/*

rm /etc/my.cnf.rpmsave

删除mysql服务

chkconfig --list | grep -i mysql

chkconfig --del mysql

删除分散mysql文件夹

whereis mysql 或者 find / -name mysql

安装cmake

wget http://www.cmake.org/files/v2.8/cmake-2.8.10.2.tar.gz

tar -zxvf cmake-2.8.10.2.tar.gz

cd cmake-2.8.10.2

./bootstrap

gmake

gmake install

下载mysql安装包进行安装

wget http://dev.mysql.com/get/archives/mysql-5.6/mysql-5.6.11.tar.gz

tar zxvf mysql-5.6.11.tar.gz

cd mysql-5.6.11.tar.gz

cmake . -DCMAKE_INSTALL_PREFIX=/data/soft/mysql -DMYSQL_DATADIR=/data/dbdata -DSYSCONFDIR=/data/soft/mysql -DMYSQL_UNIX_ADDR=/tmp/mysql.sock -DMYSQL_USER=mysql -DWITH_DEBUG=0 -DMYSQL_TCP_PORT=3306 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_ARCHIVE_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_READLINE=1 -DWITH_SSL=yes

make

make install

生成配置文件链接

cp /data/soft/mysql/support-files/my-default.cnf /data/soft/mysql/my.cnf

cp /data/soft/mysql/support-files/my-default.cnf /etc/my.cnf

修改$PATH生成文件

vim /etc/profile

最后一行加上

PATH=$PATH:/data/soft/mysql/bin

这样MySQL的命令行软件就可以直接使用了

复制mysql的服务shell文件

cp /data/soft/mysql/support-files/mysql.server /etc/init.d/mysqld

chmod +x /etc/init.d/mysqld

创建MySQL系统数据库

/data/soft/mysql/scripts/mysql_install_db --user=mysql --basedir=/data/soft/mysql --datadir=/data/dbdata

开启MySQL服务

service mysqld start

设置MySQL开机启动

echo "service mysqld start" >> /etc/rc.local

到这里mysql安装完成了， 我们开始使用客户端连接mysql

登录并修改MySQL的root密码

# mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 3 to server version: 3.23.56

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> USE mysql ;

Database changed

mysql> UPDATE user SET Password = password ( ‘new-password’ ) WHERE User = ‘root’ ;

Query OK, 0 rows affected (0.00 sec)

Rows matched: 2 Changed: 0 Warnings: 0

mysql> flush privileges ;

Query OK, 0 rows affected (0.01 sec)

mysql> quit