Linux安裝高版本的mysql

在官網下載 mysql下載地址包

安裝

[root@lsl01 usr]# rpm -ivh mysql80-community-release-el6-1.noarch.rpm

修改mysql的下載安裝版本，將5.7的enable=0改爲1，將8.0的enable=1改爲0

vi /etc/yum.repos.d/mysql-community.repo

# Enable to use MySQL 5.7
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql80-community]
name=MySQL 8.0 Community Server
baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

安裝mysql

[root@lsl01 usr]# yum install mysql-community-server

啓動mysql，第一次啓動可能失敗，還需要第二次啓動

[root@lsl01 usr]# service mysqld start
Initializing MySQL database:                               [FAILED]
[root@lsl01 usr]# service mysqld restart
Stopping mysqld:                                           [  OK  ]
Starting mysqld: 

查看默認密碼

[root@lsl01 usr]# grep 'temporary password' /var/log/mysqld.log
2018-10-26T20:38:25.148508Z 1 [Note] A temporary password is generated for root@localhost: h,Gwkw4fm3FJ

進入mysql

[root@lsl01 usr]# mysql -uroot -p
Enter password:

修改密碼

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)

進入到mysql數據庫（此mysql是mysql自帶的一個數據庫，要區分清楚）

這個是爲單個電腦ip授權的：
mysql> GRANT select，insert，update，delete ON *.* TO root@"172.16.16.152" IDENTIFIED BY "youpassword";
        mysql> FLUSH PRIVILEGES;
        mysql> exit

。。。或者。。。

爲所有IP都賦予連接權限：
        mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'youpassword' WITH GRANT OPTION;
        mysql> FLUSH PRIVILEGES;
        mysql> exit

設置開機自啓動

[root@lsl01 usr]# chkconfig mysqld on

查看mysql狀態

[root@lsl01 usr]# service mysqld status
mysqld (pid  2283) is running...