Ubuntu Server 20.04（TrueNAS Scale虚拟机环境）MySQL无法启动问题求助

各位大佬好，我最近在TrueNAS Scale的虚拟机里部署了Ubuntu Server 20.04，结果安装完MySQL后发现它没法正常启动，想请大家帮忙排查下问题。

先跟大家说下我的服务器配置：

• 5GiB 内存
• 1个虚拟CPU，2核心
• 100GiB 存储空间

我是通过SSH远程连接操作的，安装MySQL用的命令是：

sudo apt install mysql-server -y

安装过程的输出信息如下：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  galera-4 libconfig-inifiles-perl libdbd-mariadb-perl libdbi-perl libmariadb3 libmysqlclient21 libterm-readkey-perl mariadb-common pv socat
Use 'sudo apt autoremove' to remove them.
The following NEW packages will be installed:
  mysql-server
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 9,480 B of archives.
After this operation, 35.8 kB of additional disk space will be used.
Get:1 http://gb.archive.ubuntu.com/ubuntu focal-updates/main amd64 mysql-server all 8.0.36-0ubuntu0.20.04.1 [9,480 B]
Fetched 9,480 B in 0s (26.5 kB/s)
Selecting previously unselected package mysql-server.
(Reading database ... 80365 files and directories currently installed.)
Preparing to unpack .../mysql-server_8.0.36-0ubuntu0.20.04.1_all.deb ...
Unpacking mysql-server (8.0.36-0ubuntu0.20.04.1) ...
Setting up mysql-server (8.0.36-0ubuntu0.20.04.1) ...

安装看起来顺利完成了，但我尝试启动MySQL服务的时候一直失败，也没找到明确的报错提示。有没有大佬能给我点思路？比如该检查哪些日志文件，或者有没有虚拟机环境下常见的配置问题需要注意呀？

备注：内容来源于stack exchange，提问作者anon