WSL-Info

<#
WSL 1 Architecture
┌──────────────────────────────────┐
│                                  │
│  ┌────────────────────────────┐  │
│  │                            │  │
│  │        LINUX DISTRO        │  │
│  │                            │  │
│  └──────────────▲─────────────┘  │
│                 │                │
│                 │                │
│                 │                │
│                 │                │
│  ┌──────────────▼─────────────┐  │
│  │      LNUX KERNEL API       │  │
│  │                            │  │
│  │           WSL v1           │  │
│  │                            │  │
│  │      WINDOWS NT API        │  │
│  └──────────────▲─────────────┘  │
│                 │                │
│                 │                │
│                 │                │
│                 │                │
│  ┌──────────────▼─────────────┐  │
│  │                            │  │
│  │      WINDOWS KERNEL        │  │
│  │                            │  │
│  └────────────────────────────┘  │
│                                  │
└──────────────────────────────────┘
               WINDOWS
┌──────────────────────────────────┐
│             HARDWARE             │
└──────────────────────────────────┘


WSL2 Architecture
┌───────────────────┐  ┌───────────────────────────────────┐
│                   │  │                                   │
│                   │  │ ┌──────────────┐ ┌──────────────┐ │
│                   │  │ │              │ │              │ │
│                   │  │ │ LINUX DISTRO │ │ LINUX DISTRO │ │
│                   │  │ │      1       │ │      2       │ │
│  ┌──────────────┐ │  │ │              │ │              │ │
│  │              ◄─┼──┼─►              │ │              │ │
│  │              │ │  │ │              │ │              │ │
│  │    WSL v2    │ │  │ │              │ │              │ │
│  │              │ │  │ │              │ │              │ │
│  │              ◄─┼──┼─┼──────────────┼─►              │ │
│  └──────────────┘ │  │ │              │ │              │ │
│                   │  │ │              │ │              │ │
│                   │  │ └───────┬──────┘ └───────┬──────┘ │
│                   │  │         │                │        │
│                   │  │         │                │        │
│                   │  │         │                │        │
│                   │  │         │                │        │
│                   │  │         │                │        │
│                   │  │         │                │        │
│                   │  │         │                │        │
│  ┌─────────────┐  │  │ ┌───────▼────────────────▼──────┐ │
│  │   WINDOWS   │  │  │ │                               │ │
│  │    KERNEL   │  │  │ │          LINUX KERNEL         │ │
│  │             │  │  │ │                               │ │
│  └─────────────┘  │  │ └───────────────────────────────┘ │
│                   │  │                                   │
└───────────────────┘  └───────────────────────────────────┘
    WINDOWS [VM]                     LINUX VM

┌──────────────────────────────────────────────────────────┐
│                HYPER-V (Type 1 Hypervisor)               │
└──────────────────────────────────────────────────────────┘

┌──────────────────────────────────────────────────────────┐
│                          HARDWARE                        │
└──────────────────────────────────────────────────────────┘
#>

#Enable virtualization platform
dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart

#Install WSL
#Don't do this as this in the inbox and not latest
#dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart

#INSTALL WSL FROM THE STORE FOR LATEST VERSION, i.e. v2
wsl --install #will use the store version and install a default distribution
wsl --install --no-distribution #no default distribution
#OR
https://www.microsoft.com/store/productId/9P9TQF7MRM4R

#This is the distribution architecture. Leverages virtualization for the kernel instead of a translation layer (WSL1)
wsl --set-default-version 2

#What is the version of this app I'm running
wsl --version #if this does not work you need to get the store version
wsl --status

wsl --help #note are -<char> and --<term> for most

wsl --update #to update
#Will also update from the store including the kernel
#and would update from in-windows to the store version


#Global settings such as maximum resource, customizing kernel at
code %userprofile%/.wslconfig

#Can see the impact within distro
#Processor
lscpu
nproc --all
cat /proc/cpuinfo

#Memory
cat /proc/meminfo
free
#Both
top


#View available distributions
wsl --list --online
wsl --install kali-linux

#View all distributions installed
wsl --list --verbose
#or
wsl -l -v

#Check current location
$DistroName = 'Ubuntu'
(Get-ChildItem -Path HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss | Where-Object { $_.GetValue("DistributionName") -eq $DistroName }).GetValue("BasePath") + "\ext4.vhdx"

#To move to custom location

#Terminate specific distribution
wsl -t Ubuntu
#Shutdown WSL (all)
wsl --shutdown

#export
wsl --export Ubuntu s:\scratch\ubuntuwsl.tar
#OR
wsl --export Ubuntu s:\scratch\ubuntuwsl.vhdx #much faster

#Then
wsl --unregister Ubuntu
#Import to location of your choice
wsl --import Ubuntu s:\images\Ubuntu s:\scratch\ubuntuwsl.vhdx

wsl --list --verbose

#Can change the default
wsl --set-default Ubuntu

#Start and connect to distribution
wsl -d Ubuntu

#To avoid entering password at every sudo
sudo visudo
<#
Add to end of file
hjalti    ALL=(ALL) NOPASSWD:ALL
#>

#See our processes. Note we are running in our own namespace in a shared kernel. init -> bash
#We see multiple init forked processes as it has multiple functions such as actual init then interoperability services and others
#Also the plan9 for file system sharing from Linux to Windows
ps -ef

#Can see the full services for a distribution
wsl --system -d Ubuntu ps -ef


#File system mount of the ext4.vhdx -> /mnt/wslg
Wsl --system -d ubuntu df -h /mnt/wslg/distro #Windows
#Linux
df -h
ls /mnt/wslg/distro
cat /mnt/wslg/distro/etc/os-release
cat /etc/os-release


#File systems
ls /mnt/s #on Linux to view Windows

ls \\wsl.localhost\Ubuntu\proc #on Windows to view the Linux
#Distro specific configurations
cat \\wsl.localhost\Docker\etc\wsl.conf #note will be pause if not running as it starts it
#Global settings in %userprofile%\.wslconfig
#In explorer can just navigate then launch pwsh.exe to be in that folder and even view processes etc


#Systemd support
sudo -e /etc/wsl.conf
<#ADD
[boot]
systemd=true
#>
cat /etc/wsl.conf
wsl -t Ubuntu #from command then restart

#Graphical
sudo apt install firefox #uses snap which needs systemd enabled
snap install firefox
firefox
sudo apt install gnome-mahjongg
sudo apt install x11-apps -y && xeyes


#Network port mapping
sudo apt update
sudo apt install nodejs
node -v
hostname -I #check my IP
#In my RandomStuff repo location
cd /mnt/c/Users/hjalti/OneDrive/projects/GIT/RandomStuff
node ./doggos/doggoecho.js 80 127.0.0.1
#On Windows host
netstat -ab #Note wslrelay.exe has the port mapped!
#Open on my Windows box to http://127.0.0.1