sudo pacman -S mariadb
sudo chmod -R 777 /var/lib/mysql
注：这个目录必须可读写，不然会报错，因为涉及到数据存储。
例如
sudo mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
Installing MariaDB/MySQL system tables in '/var/lib/mysql' ...
2019-10-11 15:17:42 0 [ERROR] InnoDB: Invalid flags 0x4800 in ./ibdata1
2019-10-11 15:17:42 0 [ERROR] InnoDB: Plugin initialization aborted with error Data structure corruption
2019-10-11 15:17:43 0 [ERROR] Plugin 'InnoDB' init function returned error.
2019-10-11 15:17:43 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2019-10-11 15:17:43 0 [ERROR] Unknown/unsupported storage engine: InnoDB
2019-10-11 15:17:43 0 [ERROR] Aborting
正确的是这样
sudo mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
Installing MariaDB/MySQL system tables in '/var/lib/mysql' ...
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
Two all-privilege accounts were created.
One is root@localhost, it has no password, but you need to
be system 'root' user to connect. Use, for example, sudo mysql
The second is mysql@localhost, it has no password either, but
you need to be the system 'mysql' user to connect.
After connecting you can set the password, if you would need to be
able to connect as any of these users with a password and without sudo
See the MariaDB Knowledgebase at http://mariadb.com/kb or the
MySQL manual for more instructions.
You can start the MariaDB daemon with:
cd '/usr' ; /usr/bin/mysqld_safe --datadir='/var/lib/mysql'
You can test the MariaDB daemon with mysql-test-run.pl
cd '/usr/mysql-test' ; perl mysql-test-run.pl
Please report any problems at http://mariadb.org/jira
The latest information about MariaDB is available at http://mariadb.org/.
You can find additional information about the MySQL part at:
http://dev.mysql.com
Consider joining MariaDB's strong and vibrant community:
https://mariadb.org/get-involved/
systemctl start mariadb
开启服务
或着直接进入目录，启动。
安全配置向导
mysql_secure_installation
或者
/usr/bin/mysql_secure_installation
设置用户名密码
[k@k-pc ~]$ sudo mysql_secure_installation
必须用管理员
[sudo] k 的密码：
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
haven't set the root password yet, you should just press enter here.
Enter current password for root (enter for none):
OK, successfully used password, moving on...
Setting the root password or using the unix_socket ensures that nobody
can log into the MariaDB root user without the proper authorisation.
You already have your root account protected, so you can safely answer 'n'.
Switch to unix_socket authentication [Y/n] y
Enabled successfully!
Reloading privilege tables..
... Success!
You already have your root account protected, so you can safely answer 'n'.
Change the root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
是否删除匿名用户，开发环境无所谓，生产环境一定要删除
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]
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]
禁止root远程登录，直接yes，安全
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?
删除test数据库，看个人需要了
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now?
重新加载权限表，直接回车
最后
[k@k-pc ~]$ sudo mysql -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 13
Server version: 10.4.8-MariaDB Arch Linux
Copyright (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)]>
