WSL Import and run in Ubuntu WSL in Jammy Final (archived)

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WSL Import and runDetailed information on the testcase
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This test case imports a WSL image from a rootfs and runs it.

It requires a working Microsoft Windows 10 or higher installation with WSL2 enabled. Installing Windows and enabling WSL 2 is outside of the scope of this test case.

To run this test you must download the image from

For example for latest focal image download:
Make sure to download the image from the download link associated to this test case.

Open Windows Terminal or PowerShell and execute the test case below:

Import the image in WSL
> wsl.exe --import <name of the distro> <location to unpack rootfs> <rootfs> [--version <version of WSL>]

For example:

> wsl.exe --import Ubuntu20.04.3 .\wsl\ .\Downloads\focal-server-cloudimg-amd64-wsl.rootfs.tar.gz --version 2
Verify that the image has been imported by running the following command:
> wsl.exe --list --all --verbose
NAME             STATE           VERSION
*Ubuntu          Running         2
Ubuntu20.04.3    Stopped         2
Ubuntu-Preview   Stopped         2
Ubuntu-20.04     Stopped         2
TestUbuntuWSL    Stopped         2
Check the the name used in previous command appears in the list.
Launch the newly installed application
> wsl -d Ubuntu20.04.3
Verify that you're inside the WSL instance and running the right distribution. For example run:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal
Wait for cloud-init to finish its job, if it's present in the system (cloud-init is only present in recent releases):
$ which cloud-init && cloud-init status --wait

status: disabled
Since the image has been installed directly and not with the distro launcher, you're logged in a root by default and have to create a first user manually. But first, verify that there is no other user already created by default:
$ id 1000
id: '1000': no such user: No such file or directory
$ id ubuntu
id: 'ubuntu': no such user
$ egrep ':100[0-9]:' /etc/passwd        # should output nothing.
Create a new user named 'ubuntu':
$ adduser ubuntu
Adding user `ubuntu' ...
Adding new group `ubuntu' (1000) ...
Adding new user `ubuntu' (1000) with group `ubuntu' ...
Creating home directory `/home/ubuntu' ...
Copying files from `/etc/skel' ...
New password:
Retype new password:
passwd: password updated successfully
Changing the user information for ubuntu
Enter the new value, or press ENTER for the default
Full Name []:
Room Number []:
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [Y/n]
Add the newly created user to the sudo group:
$ usermod -aG sudo ubuntu
Verify that you can switch to the new user
$ su ubuntu
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
$ whoami
Exit WSL. Type CTRL+D twice until you're back to the PowerShell prompt.
Start a WSL session directly with the newly created user.
> wsl -d Ubuntu20.04.3 -u ubuntu
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

Welcome to Ubuntu 20.04.3 LTS (GNU/Linux x86_64)

* Documentation:
* Management:
* Support:

System information as of Mon Aug 23 03:31:35 PDT 2021

System load:  0.16               Processes:             8
Usage of /:   0.5% of 250.98GB   Users logged in:       0
Memory usage: 6%                 IPv4 address for eth0:
Swap usage:   0%

1 update can be applied immediately.
To see these additional updates run: apt list --upgradable

This message is shown once a day. To disable it please create the
/home/ubuntu/.hushlogin file.
Run a command as root with sudo, for instance
$ sudo apt update
Verify that the command ends successfully
Apply any update
$ sudo apt full-upgrade
Verify that the command ends successfully and that any packge that must be upgraded has been upgraded
Install a package
$ sudo apt install hello
Verify that the package has been successfully installed and the application can run
$ hello
Hello, world!
Install and run graphical applications
$ sudo apt install x11-apps gtk-4-examples              # gtk-3-examples for focal
Start one of the graphical application from the x11-apps package, like xcalc for example:
$ xcalc
(Wait a moment until the application starts and is displayed)
Start the GTK demo application with the default backend:
$ gtk4-demo
(Wait a moment until the application starts and is displayed)
Start the GTK demo application with the Wayland backend:
$ GDK_BACKEND=wayland gtk4-demo
(Wait a moment until the application starts and is displayed)
Exit WSL
Check that your back to the PowerShell prompt
Unregister the distro instance
> wsl.exe --unregister Ubuntu20.04.3
The application is no longer listed
> wsl --list
Windows Subsystem for Linux Distributions:
Ubuntu (Default)
And the directory is empty
> ls .\wsl

If all actions produce the expected results listed, please submit a 'passed' result.
If an action fails, or produces an unexpected result, please submit a 'failed' result and file a bug. Please be sure to include the bug number when you submit your result.

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