mysql linux下安装

1. 解压安装包，后改文件夹名为mysql

tar -xvzf mysql-5.6.38-linux-glibc2.12-i686.tar.gz 

2.进入mysql目录，添加系统mysql组和mysql用户，修改目录权限

groupadd mysql
useradd -r -g mysql mysql
chown -R mysql:mysql  ./

3.创建配置文件所配置的文件夹并修改权限（文件夹即可）

datadir
socket
log-error（需要创建文件）
pid-file

4.安装必要模块：

yum -y install numactl.x86_64
yum -y install autoconf
yum install -y libaio

./scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

5.修改权限

chown -R root:root .
chown -R mysql:mysql data

6.添加并启动服务

cp support-files/mysql.server /etc/init.d/mysql
service mysql start

7.创建软连接

ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
ln -s /usr/local/mysql/bin/mysql /usr/bin

8.修改初始密码

./bin/mysqladmin -u root password '123456'

 9.开启远程连接权限

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'IDENTIFIED BY '123456' WITH GRANT OPTION;
FLUSH PRIVILEGES;