Delete Mariadb to prevent conflicts with MySQL
Check if there is mariadb
rpm -qa | grep mariadb
Forced deletion of mariadb
rpm -e --nodeps mariadb-libs
upgrade
yum -y updateoryum -y upgrade
the difference:
yum -y upgradeOnly upgrades all packages and system versions, without changing the kernel, software settings, and system settings
yum -y updateUpgrade all packages, system versions and kernels, change software settings and system settings
yum install -y unzip zip
download
mysql_8.0.28_x64 download address
Unzip on the Windows system and delete unnecessary packages; recompress and upload to the Linux server ( /root); (The remaining files are as shown below)
(Deleted files: devel, embedded, compat, test)
Unzip
unzip mysql-8.0.28-1.el7.x86_64.rpm-bundle.zip
cd mysql-8.0.28-1.el7.x86_64.rpm-bundle
Install
Note: Packages have dependencies and must be installed in order.
rpm -ivh mysql-community-common-8.0.28-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.0.28-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.28-1.el7.x86_64.rpm
Error resolution:
yum remove mysql-libs
rpm -ivh mysql-community-client-8.0.28-1.el7.x86_64.rpm
rpm -ivh mysql-community-icu-data-files-8.0.28-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.28-1.el7.x86_64.rpm --nodeps --force
initialization
mysqld --initialize --consloe
If you encounter the following error:
mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directorySolution:
yum install -y libaio.so.1
yum install -y libaio
Authorize
Authorize the mysql user mysql group
chown -R mysql:mysql /var/lib/mysql/
Start service
systemctl start mysqld
If you encounter the following error:
Job for mysqld.service failed because the control process exited with error code. See “systemctl status mysqld.service” and “journalctl -xe” for details.Solution:
rm -rf /var/lib/mysql/*
Get temporary password
cat /var/log/mysqld.log | grep root@localhost
Connect to MySQL
mysql -u root -p
Enter temporary password
change Password
alter user user() identified by '123qwe!@#';
The password must be at least 8 characters long and contain at least one uppercase letter, one lowercase letter, one number and one special character.
Reconnect and modify configuration
mysql -u root -p
Enter temporary password:123qwe!@#
use mysql;
select host from user where user='root';
update user set host = '%' where user ='root';
flush privileges;
Change encryption method
ALTER USER 'root'@'%' IDENTIFIED BY '123qwe!@#' PASSWORD EXPIRE NEVER;
Update user password
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123qwe!@#';
Refresh permissions
FLUSH PRIVILEGES;
- Finish-