如何在 Ubuntu 20.04 上启动 mysql 服务器

Question

我已通过 WSL 2 安装了 Ubuntu，如下所示：Ubuntu 20.04.4 LTS（GNU/Linux 5.10.102.1-microsoft-standard-WSL2 x86_64）

我正在尝试使用此命令“sudo apt install mysql-server”安装 mysql-server

（https://ubuntu.com/server/docs/databases-mysql）

我安装了它

mysql --version
mysql  Ver 8.0.31-0ubuntu0.20.04.1 for Linux on x86_64 ((Ubuntu))

但此后它就没有再启动。

(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo service mysql start
 * Starting MySQL database server mysqld

(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo service mysql restart                                                  [ OK ]
 * Starting MySQL database server mysqld                                                                                su: warning: cannot change directory to /nonexistent: No such file or directory

我尝试了以下一组命令：

这个是改变主目录。

(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo usermod -d /var/lib/mysql/ mysql
usermod: user mysql is currently used by process 3622

(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo systemctl stop mysql.service
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo usermod -d /var/lib/mysql/ mysql
usermod: user mysql is currently used by process 3622
(base) bluetail14@LAPTOP-28BMMQV7:~$ sudo systemctl start mysql.service
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down

因此看起来我需要从不存在或其他位置配置主目录？我该如何正确设置它？