詳細安裝步驟參見官方文檔:
https://dev.mysql.com/doc/refman/5.7/en/linux-installation-yum-repo.html
1. 先下載MySQL Yum Repository
wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
2.Install the downloaded release package
sudo yum localinstall mysql80-community-release-el7-1.noarch.rpm;
3. 編輯mysql-community.repo, 將enable 5.7, disable 8.0
8.0默認是enabled,其它版本默認是disabled.（enabled=0為disabled,1為enabled,其它的不要修改)
vim /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/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
[mysql80-community]
name=MySQL 8.0 Community Server
baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/7/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
4. 查看當前enbled的版本是否正確：
yum repolist enabled | grep mysql
5. 安裝MySql-Server
shell> sudo yum install mysql-community-server
6. Start the MySql-Server
Start the MySQL server with the following command:
shell> sudo service mysqld start?
Starting mysqld:[OK]
You can check the status of the MySQL server with the following command:
shell> sudo service mysqld status
mysqld(pid 3066)is running.
At the initial start up of the server, the following happens, given that the data directory of the server is empty:
The server is initialized.
SSL certificate and key files are generated in the data directory.
validate_password?is installed and enabled.
A superuser account?'root'@'localhost?is created. A password for the superuser is set and stored in the error log file. To reveal it, use the following command:
shell> sudo grep 'temporary password' /var/log/mysqld.log
Change the root password as soon as possible by logging in with the generated, temporary password and set a custom password for the superuser account:
shell> mysql -uroot -p
mysql>ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
Note
validate_password?is installed by default. The default password policy implemented by?validate_passwordrequires that passwords contain at least one upper case letter, one lower case letter, one digit, and one special character, and that the total password length is at least 8 characters.
