- In WSL2 run:
```
sudo apt update
sudo apt install qemu qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils cpu-checker \
network-manager iptables-persistent linux-headers-generic \
qemu uml-utilities virt-manager git \
wget libguestfs-tools p7zip-full make dmg2img tesseract-ocr \
tesseract-ocr-eng genisoimage vim net-tools screen firewalld libncurses-dev -y
sudo apt install virt-manager
sudo addgroup kvm
sudo adduser `id -un` libvirt
sudo adduser `id -un` kvm
newgrp libvirt
```
https://medium.com/codemonday/setup-virt-manager-qemu-libvert-and-kvm-on-ubuntu-20-04-fa448bdecde3

- To enable systemd:
```
sudo nano /etc/wsl.conf
```
In the file `/etc/wsl.conf` add these lines:

```
[boot]
systemd=true
```

- Enable nested virtualization. Create [.wslcongfig](https://learn.microsoft.com/en-us/windows/wsl/wsl-config#wslconfig).

- Add this section to the `.wslconfig` file

```
[wsl2]
nestedVirtualization=true
```

- Restart WSL:
```
wsl.exe --shutdown
```

- Got an error:
```
Setting up udev (252.22-1~deb12u1) ...
addgroup: The group `kvm' already exists and is not a system group. Exiting.
dpkg: error processing package udev (--configure):
 installed udev package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of mdevctl:
 mdevctl depends on udev; however:
  Package udev is not configured yet.
  ```
  
  - It can be fixed with:
  ```
   sudo mv /var/lib/dpkg/info/udev.postinst /var/lib/dpkg/info/udev.postinst.backup
   ```
- If you get:
 ```
/sbin/ldconfig.real: /usr/lib/wsl/lib/libcuda.so.1 is not a symbolic link
 ```

 
 - Then, in WSL the primary fix seems to be to delete `libcuda.so` and `libcuda.so.1` from `C:\Windows\System32\lxss\lib` as an `Administrator` in Windows (not from `WSL`):
 ```
 cd C:\Windows\System32\lxss\lib && del libcuda.so && del libcuda.so.1 && mklink libcuda.so libcuda.so.1.1 && mklink libcuda.so.1 libcuda.so.1.1
 ```
- Install [Nvidia CUDA WSL drivers](https://docs.nvidia.com/cuda/wsl-user-guide/index.html)

- If xfce4 is giving error run:
```
export DISPLAY=$(awk '/nameserver / {print $2; exit}' /etc/resolv.conf 2>/dev/null):0
export LIBGL_ALWAYS_INDIRECT=1
```
- Unregister wsl `Pengwin`:
```
wsl --unregister WLinux
```
- Link Linux headers to WSL:
```
#!/bin/bash

set -e

WSL2_VERSION=$(uname -r)
echo "WSL2_VERSION = $WSL2_VERSION"

WSL2_LINK="/lib/modules/$WSL2_VERSION"
if [ -L "${WSL2_LINK}" ]; then
    if [ -e "${WSL2_LINK}" ]; then
        echo "Good link"
        exit 0
    else
        echo "Broken link"
        rm "${WSL2_LINK}"
    fi
elif [ -e "${WSL2_LINK}" ]; then
    echo "Not a link"
    exit 1
else
    echo "Missing"
fi

shopt -s nullglob
for filename in /lib/modules/*; do
    echo "$filename"
    if [ -z "$HEADERS_DIR" ]; then
        HEADERS_DIR="$filename"
    else
        echo "HEADERS_DIR already set to $HEADERS_DIR, fail"
        exit 1
    fi
done

if [ -n "$HEADERS_DIR" ]; then
    echo "Create symbolic link $WSL2_LINK => $HEADERS_DIR"
    ln -s "$HEADERS_DIR" "$WSL2_LINK"
fi
```
- [Install X410 (version3)](https://x410.dev/cookbook/wsl/using-x410-with-wsl2/). Start and configure. Run this in WSL2:
```
export DISPLAY=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2; exit;}'):0.0
```
- Enable [Web Console](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_virtualization/managing-virtual-machines-in-the-web-console_configuring-and-managing-virtualization#setting-up-the-rhel-web-console-to-manage-vms_managing-virtual-machines-in-the-web-console)

- [How to use the Microsoft Linux kernel v6 on Windows Subsystem for Linux version 2 (WSL2)](https://learn.microsoft.com/en-us/community/content/wsl-user-msft-kernel-v6)

```
git clone https://github.com/microsoft/WSL2-Linux-Kernel --depth=1
cd WSL2-Linux-Kernel
git checkout `uname -r`
cat /proc/config.gz | gunzip > .config
make prepare modules_prepare
make menuconfig 
make modules
make modules_install
```