centos8 install mysql8

centos8 install mysql8

1. Preparations

Configure centos domestic yum source reference official document

• 1. Backup:

mv /etc/yum.repos.d/CentOS-Linux-BaseOS.repo /etc/yum.repos.d/CentOS-Base.repo.backup

• 2. Download the new CentOS-Base.repo to /etc/yum.repos.d/

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo

• 3. Modify the file CentOS-Linux-AppStream.repo
  • View CentOS-Linux-BaseOS.repo
  • Copy the contents of [AppStream] in CentOS-Linux-BaseOS.repo
  • Replace the copied content with the content in CentOS-Linux-AppStream.repo
• 4. Run yum makecache to generate cache

yum makecache

2. Start the installation

official document

wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
yum module disable mysql
yum install mysql-community-server --nogpgcheck

3. mysql settings

• start mysql

  service mysqld start
  

• check status

  service mysqld status
  

• Check the default password, find a place to remember to log in later

  grep 'temporary password' /var/log/mysqld.log
  

• enter mysql

  mysql -u root -p
  

• Set the password to 123456

  ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
  flush privileges;
  

• Modify localhost so that the host can connect

  use mysql;
  update user set host = '%' where user = 'root';
  flush privileges;
  

• set root permissions

  GRANT ALL ON *.* TO 'root'@'%' ;
  flush privileges;
  

• quit

  exit
  

• restart mysql

  service mysqld restart