#创建用户、数据目录
useradd -r  -s /sbin/nologin  -M mysql
mkdir /data/mysql  -p
chown -R  mysql. /data

#下载二进制安装文件
wget  https://mirrors.tuna.tsinghua.edu.cn/mariadb/mariadb-10.4.21/bintar-linux-systemd-x86_64/mariadb-10.4.21-linux-systemd-x86_64.tar.gz
tar zxf mariadb-10.4.21-linux-systemd-x86_64.tar.gz -C /usr/local/
cd /usr/local
ln -s mariadb-10.4.21-linux-systemd-x86_64 mysql
chown mysql. /usr/local/mysql

#配置环境变量
vim /etc/profile
PATH=/usr/local/mysql/bin/:$PATH
.  /etc/profile



把/etc/my.cnf 的路径改为自定义的路径 datadir=/data/mysql

#初始化
/usr/local/mysql/scripts/mariadb-install-db --user=mysql --datadir=/data/mysql

#服务脚本
cp -a /usr/local/mysql/support-files/syste***riadb.service /usr/lib/systemd/system/

systemctl daemon-reload

#启动服务
systemctl start mariadb.service