when installed docker.io , /etc/init.d/docker not found, so service can't start

Sorry , ubuntu version is 20.04

Could you also post your Windows 10 version? Also, what version of WSL are you using? Just for your information, WSL1 do not support Docker at all.

Win10: build 19624
I run ubuntu in WSL2 mode.

Suspicious message
invoke-rc.d: could not determine current runlevel
invoke-rc.d: unknown initscript, /etc/init.d/docker not found.

===========================================================
Setting up cgroupfs-mount (1.4) ...
invoke-rc.d: could not determine current runlevel
Setting up containerd (1.3.3-0ubuntu2) ...
Setting up docker.io (19.03.8-0ubuntu1) ...
invoke-rc.d: unknown initscript, /etc/init.d/docker not found.
invoke-rc.d: could not determine current runlevel
Setting up dnsmasq-base (2.80-1.1ubuntu1) ...
Setting up ubuntu-fan (0.12.13) ...
invoke-rc.d: could not determine current runlevel
Processing triggers for systemd (245.4-4ubuntu3) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for dbus (1.12.16-2ubuntu2) ...
Processing triggers for libc-bin (2.31-0ubuntu9) ...

I can confirm this bug. For now, it would be a good idea to use the Windows Docker Desktop with WSL2 backend to use both on Windows and WSL2: https://docs.docker.com/docker-for-windows/wsl-tech-preview/

Thanks Patrick Wu . I am still playing docker on wsl2 , I can copy docker init script from other machine and it works fine.

Same bug on Ubuntu 18.04 on Win10 + wsl2, it is basically impossible now to run docker on ubuntu distro on wsl2. To me, it's more than "Medium".

Paolo Mainardi

officile docker-ce can be installed , now has 20.04 version. so I remove docker.io and install it.

https://docs.docker.com/engine/install/ubuntu/ <= document show lastest is 18.0.4

The same issue for me...

Status changed to 'Confirmed' because the bug affects multiple users.

systemd is used in Ubuntu 20.04 for managing services. Some things still work with the legacy init system but in general you should be using commands like:

$ sudo apt install docker.io
$ sudo systemctl start docker
$ sudo systemctl status docker

Let us know if that does not work.

Hi bryce ~

This bug happend on WSL2.
So I use servce docker start/stop ...
No systemd and can't use systemd

Same here on WSL2 with Ubuntu 20.04. After
`$ sudo apt install docker.io`
I can't run docker service, but `docker-ce` from this manual
https://docs.docker.com/engine/install/ubuntu/
works fine.

Installing this way works for me as well on wsl: https://docs.docker.com/engine/install/ubuntu/