Скачать или смотреть Upgrade Mariadb 5 to 10.4 Step By Step - Centos 7

Installation and Upgrade MariaDB on Centos 7
mysql -V

rpm -qa | grep "mariadb"
cd /etc/yum.repos.d/

ll
yum-config-manager --disable MariaDB
yum remove "MariaDB*" -y
mv /etc/my.cnf /etc/my.cnf.backup
rm -rf /etc/my.cnf
rm -rf /var/lib/mysql
grep mysql /etc/passwd
userdel -r mysql
grep mysql /etc/passwd
mysql -u root -p
systemctl status mariadb
yum-config-manager --enable MariaDB
nano /etc/yum.repos.d/mariadb.repo


[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.4/centos7-a...
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-M...
gpgcheck=1


yum clean all

sudo yum install MariaDB-server galera-4 MariaDB-client MariaDB-shared MariaDB-backup MariaDB-common
sudo yum install mariadb-server galera-4 mariadb-client mariadb-shared mariadb-backup mariadb-common


yum update -y


then activate the service
systemctl enable mariadb

start the process for now
systemctl start mariadb

put everything on Y
mysql_secure_installation


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