centos7 + mysql5.7 tar包解压安装
MySQL官网下载地址：https://dev.mysql.com/downloads/mysql/https://common.cnblogs.com/images/copycode.gif
#卸载系统自带的Mariadb
# rpm -qa|grep mariadb
mariadb-libs-5.5.44-2.el7.centos.x86_64
# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64
#删除etc目录下的my.cnf文件
# rm /etc/my.cnfrm: cannot remove ?etc/my.cnf? No such file or directory
#检查mysql是否存在
# rpm -qa | grep mysql
#
#检查mysql组和用户是否存在，如无创建
# 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111111
# passwd mysql
Changing password for user mysql.
New password:
BAD PASSWORD: The password is a palindrome
Retype new password:
passwd: all authentication tokens updated successfully.
#由于我的/usr/local空间不足，所以我安装到/var
# tar -zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz
# mv mysql-5.7.18-linux-glibc2.5-x86_64/ mysql57
#更改所属的组和用户
# chown -R mysql mysql57/# chgrp -R mysql mysql57/
# cd mysql57/
# mkdir data
# chown -R mysql:mysql data https://common.cnblogs.com/images/copycode.gif
在etc下新建配置文件my.cnf，并在该文件内添加以下配置
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# 设置mysql客户端默认字符集
default-character-set=utf8
skip-name-resolve
#设置3306端口
port = 3306
# 设置mysql的安装目录
basedir=/var/mysql57
# 设置mysql数据库的数据的存放目录
datadir=/var/mysql57/data
# 允许最大连接数
max_connections=200
# 服务端使用的字符集默认为8比特编码的latin1字符集
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
lower_case_table_names=1
max_allowed_packet=16M
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安装和初始化
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# bin/mysql_install_db --user=mysql --basedir=/var/mysql57/ --datadir=/var/mysql57/data/2017-04-17 17:40:02 mysql_install_db is deprecated. Please consider switching to mysqld --initialize2017-04-17 17:40:05 The bootstrap log isn't empty:2017-04-17 17:40:05 2017-04-17T09:40:02.728710Z 0 --bootstrap is deprecated. Please consider using --initialize instead2017-04-17T09:40:02.729161Z 0 Changed limits: max_open_files: 1024 (requested 5000)2017-04-17T09:40:02.729167Z 0 Changed limits: table_open_cache: 407 (requested 2000) https://common.cnblogs.com/images/copycode.gif
# cp ./support-files/mysql.server /etc/init.d/mysqld
# chown 777 /etc/my.cnf
# chmod +x /etc/init.d/mysqld https://common.cnblogs.com/images/copycode.gif
# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS! #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
SUCCESS! MySQL running (4475) https://common.cnblogs.com/images/copycode.gif
/etc/profile
export PATH=$PATH:/var/mysql57/bin
# source /etc/profile获得初始密码
# cat /root/.mysql_secret
# Password set for user 'root@localhost' at 2017-04-17 17:40:02 _pB*3VZl5T set PASSWORD = PASSWORD('111111');
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec) https://common.cnblogs.com/images/copycode.gif
添加远程访问权限
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mysql>-> update user set host= where user= row affected (Changed: Warnings: > +-----------+-----------+
| host | user |
+-----------+-----------+
| % | root |
| localhost | mysql.sys |
+-----------+-----------+ rowsset ( sec)
create user 'xxx'@'%' identified by '123';这里 @‘%’ 表示在任何主机都可以登录 https://common.cnblogs.com/images/copycode.gif
重启生效
/bin/systemctl restartmysql.service
# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS!
为了在任何目录下可以登录mysql
ln -s /var/mysql57/bin/mysql /usr/bin/mysql
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