How to set up Ubuntu for Windows Subsystem for Linux 2 (WSL2)


I will summarize the settings made on Ubuntu of Windows Subsystem for Linux (WSL) as a memorandum.


Windows 10 version 2004 and above

Confirmation method

  1. Start "Run" with Win + R image.png
  2. Type winver and press ʻEnter`


Enable WSL

1. Enable the "Windows Subsystem for Linux" option

Run PowerShell as an administrator and execute the following command


dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart

2. Enable the "Virtual Machine Platform" option

Run PowerShell as an administrator and execute the following command


dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart

3. Restart your PC

4. Download the Linux kernel update package

Please download and install from here.

5. Set WSL2 as default


wsl --set-default-version 2

6. Install Ubuntu from Microsoft Store

Please obtain and install from the following.

7. Start Ubuntu

Press the Windows key to launch Ubuntu from the list of apps. First, set the user name. This time, it is user in the image, but it is OK if you decide as you like within the range of half-width alphanumeric characters. Then enter the password twice. It is not displayed even if I enter it, but it is entered properly. (Because I will use it many times after that, please do not forget it) image.png


VcXsrv Windows X Server installation

Install the X-Window server to run GUI programs on Linux.

1. Download the installer

Download the installer from here.

2. Launch the installer

Launch the downloaded installer and install according to the instructions.

3. Launch XL launch

Search for XLaunch in the start menu and launch Click Next and write -ac in the -Additional parameters for VcX srv field on the third screen. image.png

If you save the configuration file in shell: startup with save configuration, VcXsrv will start automatically when Windows starts. image.png

WSL settings

I'm using Windows Terminal. It is quite easy to use, so if you want to use it, please refer to the installation / setting method described in [below](installation setting of windows-terminal from # microsoft-store is optional).

1. Start Ubuntu

2. Package installation

Execute the following commands in order. I think it will take a few hours lightly.


sudo apt update -y
sudo apt upgrade -y
sudo apt install -y language-pack-ja manpages-ja manpages-ja-dev nkf build-essential x11-apps emacs emacs-mozc fcitx-mozc dbus-x11 gtypist typespeed texlive-full evince gnome-terminal sox nodejs libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-net-dev libsdl2-ttf-dev libsdl2-gfx-dev libopencv-dev freeglut3-dev fonts-freefont-ttf fonts-ubuntu gdb python3-pip libreadline-dev libssl-dev

I will explain what you are doing

1st line: Update the package list (Be sure to execute it when adding / deleting repositories) 2nd line: Update package 3rd line: Installation of basic packages and deb files

3. Various settings

Execute the following command to set the display.


echo "export DISPLAY=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2}'):0" >> ~/.profile
echo 'export LIBGL_ALWAYS_INDIRECT=1' >> ~/.profile

Execute the following command to set the location.


sudo update-locale LANG=ja_JP.UTF-8

Next, as a setting for entering Japanese words, add the following contents to `~ / .profile``.


export GTK_IM_MODULE=fcitx
export QT_IM_MODULE=fcitx
export XMODIFIERS=@im=fcitx
export DefaultIMModule=fcitx
if xset -r 49; then
fcitx-autostart >/dev/null 2>&1 &
echo "Start XLaunch and then Restart Ubuntu"

Continue to set the time zone.


sudo dpkg-reconfigure tzdata

And select ʻAsia Tokyo`.

4. Text editor settings

If you have VS Code installed and Remort --WSL installed, you can open VS Code with the code command, but you can't edit it with sudo (please tell me how to do it ...) Let's keep it.

VSCode Obtain and install from the following.

Then install the extension from ctrl + shift + x or the □ mark on the far left. Remort - WSL Japanese Language Pack for Visual Studio Code Is mandatory. (* If you don't want to speak Japanese, just Remort --WSL is OK.)

After installing the extension, reload it and press ctrl + shift + p to bring up the command palette. Enter & select Configure Display Language and change it to ja to make it Japanese.

In addition, please install the extension function if you like.

Besides I Extensions that introduce Vim keybindings Color scheme Monokai Pro extension I have installed extensions such as, but I will omit it because my tastes are different.

You can open the setting from ctrl +, or the lower left gear → Settings. I think it is easy to understand because it is a GUI. (Editable with json)


If you use LaTeX, I wrote about it before, so Please refer to here) to set it.

Vim Write the settings in ~ / .vimrc. Also, the color scheme is not good at the beginning, so I have introduced the color scheme molokai.

Setting example

Download molokai

mkdir ~/.vim cd ~/.vim mkdir colors git clone mv molokai/colors/molokai.vim ~/.vim/colors/ vi ~/.vimrc

 > ~ / .vimrc contents

set fenc=utf-8 "UTF-Save in 8 formats
set title "Show the name of the file being edited
set showmatch "Display the corresponding parenthesis when entering parentheses
set number "Show line number
syntax on "Turn on code color coding
set smartindent "Set smart indent
set tabstop=2 "Set indent to 2 spaces
syntax on "Code color coding
set showcmd "Display the command you are typing
set virtualedit=onemore "Allows you to move the cursor to the end of a line
set clipboard=unnamedplus "Put it in the clipboard when yank
set ignorecase "If the search string is lowercase, the search is case insensitive.
set smartcase "If the search string contains uppercase letters, search separately
set incsearch "Hit the target character string in sequence when entering the search character string
set wrapscan "If you go to the end when searching, go back to the beginning
set hlsearch "Highlight search terms
nmap <Esc><Esc> :nohlsearch<CR><Esc> "ESC repeated hits to remove highlights
colorscheme molokai "Make the color scheme molokai
set t_Co=256 "Make vim compatible with 256 colors

emacs Describe it in ~ / .emacs.d / init.el. Initially I don't think there is a directory ~ / .emacs.d


mkdir ~/.emacs.d

Create it with.

Setting example

;;Japanese input settings (require 'mozc) (set-language-environment "Japanese") (setq default-input-method "japanese-mozc") ;;Turn off the welcome screen on the initial screen (setq initial-scratch-message t) (setq initial-scrarch-message nil) ;;Show how many rows and columns you are in at the bottom bar of the screen (line-number-mode t) (column-number-mode t) ;;Make yes and no hit with y and n (defalias 'yes-or-no-p 'y-or-n-p) ;;Line number display (global-linum-mode) (setq linum-format "%4d ") ;;UTF text encoding-Set to 8 (set-default-coding-systems 'utf-8) (set-keyboard-coding-system 'utf-8) (set-terminal-coding-system 'utf-8) (set-buffer-file-coding-system 'utf-8) (prefer-coding-system 'utf-8)

## 5. Font settings
 Makes Windows fonts available on WSL.
 First, open `/etc/fonts/local.conf` with sudo.
 vi can be emacs (code is not possible)

#### **`bash`**

sudo vi /etc/fonts/local.conf

Then paste the following content.


<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">

After this,


fc-cache -fv

Then you can use Windows fonts in WSL.

Installation of development tools

1.Python The default for Ubuntu 20.04 is 3.8.6, which is a little old, and it is convenient to be able to manage multiple versions.

1. Download pyenv


git clone ~/.pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
source ~/.bashrc

2. Download python with pyenv


pyenv install --list

You can see the list that can be installed with.

The latest version at the time of posting is 3.9.0, so I will install it. If you want to install another version, please read as appropriate.


pyenv install 3.9.0
pyenv global 3.9.0

3. pip package installation


pip3 install pandas numpy scipy xlrd matplotlib japanize-matplotlib Pillow opencv-python folium plotly requests beautifulsoup4 lxml Flask Flask-Bootstrap4 Django PyMySQL

2.Ruby on Rails

1. Install rbenv


git clone ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
~/.rbenv/bin/rbenv init
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
source ~/.bashrc

2. Install ruby-build


git clone ~/.rbenv/plugins/ruby-build

3. Install Ruby


rbenv install -list

If you do



It comes out like. This time I will install 2.7.2. If you want to install another version, please read as appropriate.


rbenv install 2.7.2
rbenv rehash
rbenv global 2.7.2

4. Rails installation


gem install rails

5. Install SQL / bundler / yarn


sudo apt install libsqlite3-dev
gem install sqlite3
gem install bundler
curl -o- -L | bash

6. Run Rails


rails new app
cd app
rails server

Go to in your browser and image.png It's OK if something like this appears.

Alias setting

An alias is a command alias. Write it in the form of addition to ~ / .bashrc.

Below are my settings, but I think there is no loss in adding them because all but the bottom two are basic.

Setting example

#(Abbreviation) #Please add alias ..='cd ..' alias ..2='cd ../..' alias ..3='cd ../../..' alias agi='sudo apt install' alias agr='sudo apt remove' alias agu='sudo apt update && sudo apt upgrade' alias agi='sudo apt install' alias ags='apt search' alias cp='cp -i' alias mv='mv -i' alias rm='rm -ri' alias g='git' alias ga='git add' alias gd='git diff' alias gs='git status' alias gp='git push' alias gb='git branch' alias gst='git status' alias gco='git checkout' alias gf='git fetch' alias gc='git commit' #Note that these two are a little radical... alias m='mkdir' alias p='python3

 > Reference

# Symbolic link
 Symbolic links are like shortcuts in Windows.

 In WSL, the C drive of Windows is / mnt / c, so the Downloads folder is / mnt / c / User / (Windows user name) / Downloads.

 Let's put a symbolic link here.

#### **`bash`**

ln -s /mnt/c/User/(Windows username)/Downloads

image.png The symbolic link is pasted like this. Using symbolic links in this way makes it easier to link WSL with Windows on the host.

For the time being, I'm pasting this much. image.png

Install and configure Windows Terminal from Microsoft Store (optional)

Please obtain and install from the following.

After installation, start it and select the setting from ∨ or open the setting with Ctrl +,.

Let's specify the ubuntu profile guid in profiles as the globals defaultProfile. Rearrange the order of the list to your liking. I have ʻUbuntu, Powershell, cmd` in that order.

Then set the startingDirectory in your Ubuntu profile to // wsl $ / Ubuntu / home / (username). The username here is ʻUbuntu username`.

For reference, in my case it is as follows.


    "$schema": "",
    "defaultProfile": "{2c4de342-38b7-51cf-b940-2309a097f518}",
    "profiles": {
        "defaults": {
        "list": [
                "guid": "{2c4de342-38b7-51cf-b940-2309a097f518}",
                "hidden": false,
                "name": "Ubuntu",
                "startingDirectory": "//wsl$/Ubuntu/home/user",
                "source": "Windows.Terminal.Wsl"
                "guid": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}",
                "name": "Windows PowerShell",
                "commandline": "powershell.exe",
                "hidden": false
                "guid": "{0caa0dad-35be-5f56-a8ff-afceeeaa6101}",
                "name": "command prompt",
                "commandline": "cmd.exe",
                "hidden": false
    //(The following is omitted)

I will omit the terminal color scheme and key binding settings. (Because the taste seems to be different)


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