二进制包安装MySQL

#下载mysql的二进制包：

[root@bogon src]# wget http://down.mysql.com/archives/get/file/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

1创建用户和组

[root@bogon src]# groupadd -r mysql
[root@bogon src]# useradd -M -s /sbin/nologin -g mysql mysql

2解压软件至/usr/local:

root@bogon ~]# ls
anaconda-ks.cfg  mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz
[root@bogon ~]# tar -xf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz -C /usr/local
[root@bogon local]# ls
bin  games    lib    libexec  mysql-5.7.23-linux-glibc2.12-x86_64  share
etc  include  lib64  mysql    sbin                                 src

3建立一个软连接，并将mysql的路径写入到环境变量中：

[root@bogon ~]# ln -s /usr/local/mysql-5.7.23-linux-glibc2.12-x86_64/ /usr/local/mysql
[root@bogon ~]# ll /usr/local/ | grep mysql
lrwxrwxrwx. 1 root root  47 Sep 26 01:48 mysql -> /usr/local/mysql-5.7.23-linux-glibc2.12-x86_64/
drwxr-xr-x. 9 root root 129 Sep 26 01:43 mysql-5.7.23-linux-glibc2.12-x86_64
[root@bogon ~]# vim /etc//profile.d/mysql.sh 

export PATH=/usr/local/mysql/bin:$PATH
[root@bogon ~]# . /etc/profile.d/mysql.sh

4创建mysql存放数据的目录，并修改属组和属主为mysql:

[root@bogon ~]# mkdir /opt/mysql
[root@bogon ~]# chown -R mysql.mysql /opt/mysql/
[root@bogon ~]# ll /opt/mysql/ -d
drwxr-xr-x. 2 mysql mysql 6 Sep 25 13:10 /opt/mysql/

5添加环境变量：

[root@bogon ~]# echo 'export PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh
[root@bogon ~]# . /etc/profile.d/mysql.sh
[root@bogon ~]# echo $PATH
/usr/local/mysql/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

6初始化数据库，并记录下随机密码，最后一排结尾即是第一次登陆的随机密码:

[root@bogon ~]# mysqld --initialize --user=mysql --datadir=/opt/mysql
.......
2018-09-26T05:53:39.169155Z 1 [Note] A temporary password is generated for root@localhost: CyVJ5ZHh;H1f

7修改mysql的配置文件：

[root@bogon ~]# cat > /etc/my.cnf << EOF
> [mysqld]
> datadir = /opt/mysql
> basedir = /usr/local/mysql
> socket = /tmp/mysql.pid
> user = mysql
> skip-name-resolve
> EOF
8修改etc/init.d的配置文件：
[root@lizihan ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
[root@lizihan ~]# vim /etc/init.d/mysqld 
basedir=/usr/local/mysql
datadir=/opt/mysql   修改启动路径

8：启动服务修改密码：

root@bogon ~]# service mysqld start
Starting MySQL.Logging to '/opt/mysql/bogon.err'.
. SUCCESS! 
[root@bogon ~]#mysql -u root -p
Enter password: 
mysql> set password=password('lzh123!');
Query OK, 0 rows affected, 1 warning (0.01 sec)
[root@bogon ~]# vim .my.cnf
[mysql]
user=root
password=lzh123!
[root@lizihan ~]# mysql
mysql>

二进制包安装MySQL

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