Mysql 5.6.21 tar package installation practice under Linux

Environment: centos 6.4 x64

First download the mysql installation package

Open http://dev.mysql.com/downloads/mysql/

choose linux - Generic

choose again

After downloading, get the installation package mysql-5.6.21-linux-glibc2.5-x86_64.tar.gz

This package no longer needs make to compile the source code (really carry it), the previous mysql-5.6.4.tar.gz package is the source code package, you need to cmake first, then make & make install

Upload it to the /software directory of centos6.4 (you can change it to the directory you need, here is just a demonstration)

1. Unzip the tar package

cd /software

tar -xzvf mysql-5.6.21-linux-glibc2.5-x86_64.tar.gz

mv mysql-5.6.21-linux-glibc2.5-x86_64 mysql-5.6.21

2. Add users and groups

groupadd mysql

useradd -r -g mysql mysql

chown -R mysql:mysql mysql-5.6.21

3. Install the database

on mysql

cd mysql-5.6.21/scripts

./mysql_install_db --user=mysql --basedir=/software/mysql-5.6.21 --datadir=/software/mysql-5.6.21/data

exit

4. Configuration file

cd /software/mysql-5.6.21/support-files

cp my-default.cnf /etc/my.cnf

cp mysql.server /etc/init.d/mysql

vim /etc/init.d/mysql #若mysql的安装目录是/usr/local/mysql,则可省略此步

修改文件中的两个变更值

basedir=/software/mysql-5.6.21
datadir=/software/mysql-5.6.21/data

5.配置环境变量

vim /etc/profile

export MYSQL_HOME="/software/mysql-5.6.21"

export PATH="$PATH:$MYSQL_HOME/bin"

保存退出

. /etc/profile

6.添加自启动服务

chkconfig --add mysql

chkconfig mysql on

7.启动mysql

service mysql start

8.登录mysql及改密码与配置远程访问

mysqladmin -u root password 'your_password' #修改root用户密码

mysql -u root -p #登录mysql,需要输入密码

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'your_password' WITH GRANT OPTION; #允许root用户远程访问

mysql>FLUSH PRIVILEGES; #刷新权限

mysql>exit

又装了一次此版本的mysql，发现root用户不能登录，提示没权限。使用mysqld_safe 登进去，发现user表居然是空的，没有一个用户，郁闷。

于是从其它地方导出了一份user表的sql语句，手动插入了一个用户，再登录就可以了。

附：

忘记root密码后，如何找回密码

cd $MYSQL_HOME

./bin/mysqld_safe --basedir=/data/mysql-5.6.21 --datadir=/data/mysql-5.6.21/data --skip-grant-tables &
mysql -u root mysql
UPDATE user SET password=PASSWORD("new_password") WHERE user='root';
FLUSH PRIVILEGES;

摘自：http://blog.csdn.net/zhanngle/article/details/41042631

Mysql 5.6.21 tar package installation practice under Linux

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