mariadb的安装与更换数据存储目录
创建/data/mysql
mkdir -p /data/mysql
安装mariadb
yum -y install mariadb*
启动
systemctl restart mariadb.service
开机自启
systemctl enable mariadb.service
我是把数据看的数据放到另一个硬盘里（在/dev/sdb）
fdisk -l
fdisk /dev/sdb---n---p---回车---回车---回车---w---partprobe /dev/sdb---mkfs.ext4 /dev/sdb1
vim /etc/fstab
先关闭数据库
systemctl stop mariadb.service
复制
cp -a /var/lib/mysql/ /data/mysql/
编辑数据目录
vim /etc/my.cnf
让数据库不区分大小写
进入 /etc/my.cnf.d
编辑server.cnf
vim /etc/my.cnf.d/server.cnf
找到[mysqlld]标签，在下边添加 lower_case_table_names=1
然后启动数据库
systemctl restart mariadb.service
配置数据库
mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none): ----回车
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
Set root password? [Y/n] y ---是否加密
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y ---是否移除匿名用户
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y ---不允许root远程登录
... Success!
By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] y ---是否删除测试数据库
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y ---是否重新刷新权限
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!