1.卸载Linux自带的mariadb
//查看
rpm -qa | grep mysql
rpm -qa | grep mariadb
//卸载
rpm -e --nodeps mariadb-libs-5.5.65-1.el7.x86_64
// 删除etc目录下的my.cnf
rm /etc/my.cnf
2.检查mysql组和用户是否存在，如无则创建
# 检查mysql组和用户是否存在
cat /etc/group | grep mysql
cat /etc/passwd | grep mysql
# 创建mysql用户组
groupadd mysql
# 创建一个用户名为mysql的用户，并加入mysql用户组
useradd -g mysql mysql
# 制定password 为1234
passwd mysql
#我的密码时Mysql@1234
3.下载好的安装包拷贝到/usr/local 并解压
4.更改所属的组和用户
cd /usr/local/
chown -R mysql mysql/
chgrp -R mysql mysql/
cd mysql/
mkdir data
chown -R mysql:mysql data
5.在/etc下创建my.cnf文件
[mysql]
socket=/var/lib/mysql/mysql.sock
# set mysql client default chararter
default-character-set=utf8
[mysqld]
socket=/var/lib/mysql/mysql.sock
# set mysql server port
port = 3306#默认是3306
# set mysql install base dir
basedir=/usr/local/mysql
# set the data store dir
datadir=/usr/local/mysql/data
# set the number of allow max connnection
max_connections=200
# set server charactre default encoding
character-set-server=utf8
# the storage engine
default-storage-engine=INNODB
lower_case_table_names=1
max_allowed_packet=16M
explicit_defaults_for_timestamp=true
[mysql.server]
user=mysql
basedir=/usr/local/mysql
6.进入mysql文件夹，并安装mysql
cd /usr/local/mysql
bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
cp ./support-files/mysql.server /etc/init.d/mysqld
chown 777 my.cnf
chmod +x /etc/init.d/mysqld
7.启动mysql
/etc/init.d/mysqld restart
8.设置开机启动
chkconfig --level 35 mysqld on
chkconfig --list mysqld
chmod +x /etc/rc.d/init.d/mysqld
chkconfig --add mysqld
chkconfig --list mysqld
service mysqld status
9.修改配置文件
vim /etc/profile
修改/etc/profile，在最后添加如下内容
export PATH=$PATH:/usr/local/mysql/bin
10.获得mysql初始密码并修改
//获取初始密码
cat /root/.mysql_secret
//登录
mysql -uroot -p
//修改密码
set PASSWORD = PASSWORD('123456');
flush privileges;
exit
11.添加远程访问权限
//登录
mysql -uroot -p
use mysql
update user set host='%' where user='root';
12.重启
/etc/init.d/mysqld restart