注意：以下操作都以 root 用户进行操作

直接按照下列步骤在命令行输入即可
下载
1：

sudo yum install -y mariadb

2：

sudo yum install -y mariadb-server

3：

sudo yum install -y mariadb-devel

接下来配置文件：在相应的配置文件中添加对应命令
4：

sudo vim /etc/my.cnf.d/client.cnf

# These two groups are read by the client library
# Use it for options that affect all clients, but not the server
#
[client]
# 新增下边一行配置，设置客户端默认字符集为utf8
default-character-set = utf8
# This group is not read by mysql client library,
# If you use the same .cnf file for MySQL and MariaDB,
# use it for MariaDB-only client options
[client-mariadb]

5：

sudo vim /etc/my.cnf.d/mysql-clients.cnf

# These groups are read by MariaDB command-line tools
# Use it for options that affect only one utility
#
[mysql]
# 新增配置
default-character-set = utf8
[mysql_upgrade]
[mysqladmin]
[mysqlbinlog]
[mysqlcheck]
[mysqldump]
[mysqlimport]
[mysqlshow]
[mysqlslap]

6：

sudo vim /etc/my.cnf.d/server.cnf

# These groups are read by MariaDB server.
# Use it for options that only the server (but not clients) should see
#
# See the examples of server my.cnf files in /usr/share/mysql/
#
# this is read by the standalone daemon and embedded servers
[server]
# this is only for the mysqld standalone daemon
[mysqld]
# 新增以下四行配置
collation-server = utf8_general_ci
init-connect = 'SET NAMES utf8'
character-set-server = utf8
sql-mode = TRADITIONAL
# this is only for embedded server
[embedded]
# This group is only read by MariaDB-5.5 servers.
# If you use the same .cnf file for MariaDB of different versions,
# use this group for options that older servers don't understand
[mysqld-5.5]
# These two groups are only read by MariaDB servers, not by MySQL.
# If you use the same .cnf file for MySQL and MariaDB,
# you can put MariaDB-only options here
[mariadb]
[mariadb-5.5]

⭐️
启动：

启动服务：

sudo systemctl start mariadb

设置服务开启自启动：

systemctl enable mariadb

查看服务状态：

systemctl status mariadb

测试连接：

mysql -uroot
结果：

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 190
Server version: 5.5.68-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]>