linux安装mysql
1. 检查有无自带的mariadb数据库
1) rpm -qa | grep mariadb #检查有无mariadb数据库
2) rpm -e --nodeps mariadb-libs-5.5.35-3.el7.x86_64 #卸载mariadb数据库
rpm -e --nodeps mariadb-5.5.35-3.el7.x86_64
rpm -e --nodeps mariadb-server-5.5.35-3.el7.x86_64
2. 去MySql官网下载相应版本的MySql,
下载地址:http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar(MySQL-5.7.5-m15-0.6.m15.el6.x86_64.rpm-bundle.tar)
3. 将下载的包通过工具上传至服务器并解压
tar xvf MySQL-5.7.5-m15-0.6.m15.el6.x86_64.rpm-bundle.tar #解压Mysql安装包
4. 安装依赖包
yum install perl
yum install net-tools
5. 安装
1) rpm –ivh mysql-community-common-5.7.5-0.6.m15.el6.x86_64.rpm
2) rpm –ivh mysql-community-libs-5.7.5-0.6.m15.el6.x86_64.rpm
3) rpm –ivh mysql-community-client-5.7.5-0.6.m15.el6.x86_64.rpm
4) rpm –ivh mysql-community-server-5.7.5-0.6.m15.el6.x86_64.rpm
6. 安装成功后检查
rpm –qa | grep mysql
7. 启动mysql服务
systemctl start mysqld
8. 查看mysql服务状态
systemctl status mysqld
9.查看初始密码
cat /root/.mysql_secret #查看初始密码
10.登录mysql,修改密码
mysql –uroot –p #登录
alter user root@localhost identified by '字母符号数字组合'; #修改密码
11.创建用户并授权
create user 'root'@'%' identified by '字母符号数字组合';
flush privileges;
12.Mysql服务设置为开机自启动
systemctl list-unit-files #查看系统默认启动的项目
1) touch /usr/lib/systemd/system/mysqld.service创建配置文件
2) 填充配置文件内容如下:
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf
LimitNOFILE = 5000
#Restart=on-failure
#RestartPreventExitStatus=1
#PrivateTmp=false
以上内容中ExecStart=/usr/local/mysql/bin/mysqld修改为自己的目录,如何找路径用witch mysqld命令查找
3) 执行systemctl enable mysqld
4) systemctl is-enabled mysqld.service #检查Mysql服务是否启用