Reset WSL Root Password

ajeet@alpha2:~$ su -
Password:
su: Authentication failure

PS C:\Users\gupta> wsl -l -v
  NAME            STATE           VERSION
* Ubuntu-22.04    Running         2
  Debian          Running         2
PS C:\Users\gupta> wsl --terminate Ubuntu-22.04
PS C:\Users\gupta> wsl -d Ubuntu-22.04 -u root
Welcome to Ubuntu 22.04.3 LTS (GNU/Linux 5.10.102.1-microsoft-standard-WSL2 x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage


This message is shown once a day. To disable it please create the
/root/.hushlogin file.
root@alpha2:/mnt/c/Users/gupta# passwd
New password:
Retype new password:
passwd: password updated successfully
root@alpha2:/mnt/c/Users/gupta# exit

ajeet@alpha2:~$ su -
Password:
root@alpha2:~#

To change the password for the root user in WSL (Windows Subsystem for Linux), you first need to access the Linux distribution running within WSL. Here's a step-by-step guide based on your provided output:

List all running WSL distributions and their versions:
```
 wsl -l -v
```
Terminate the WSL instance that you want to change the root password for. For example, if you want to change the root password for the Ubuntu-22.04 instance:
```
 wsl --terminate Ubuntu-22.04
```

Start the WSL instance with root access:

 wsl -d Ubuntu-22.04 -u root
 # -d referes to distribution and -u refer to user

Once you're logged in as root, use the passwd command to change the password:
```
 passwd
```
It will prompt you to enter a new password and then to retype the new password for confirmation.
After changing the password successfully, you might see a message like "passwd: password updated successfully".
If you need to switch back to your regular user (e.g., "ajeet" in your case), you can do so using:
```
 wsl -d Ubuntu-22.04 -u ajeet
```

Remember to replace "Ubuntu-22.04" with the name of your WSL distribution if it's different. Also, make sure to replace "ajeet" with your actual username if it's different.

WSL (Forgot Root Password)

Resetting Root Password in Ubuntu <Distribution> WSL