How to Reset Root Password on ESXi Host?

If you've lost or forgotten the root password on your ESXi host, don't worry, there's a way to reset it. Follow these steps to regain access to your ESXi host:

1. Connect to the ESXi host via the Direct Console User Interface (DCUI).
2. Reboot the host and press Shift+R during the boot process to enter recovery mode.
3. At the 'vmware vSphere ESXi Dump Collector' screen, press Alt+F1 to access the console.
4. Enter the root username and press Enter (no password required).
5. Reset the root password by running the command: passwd.
6. Set a new password and confirm it.
7. Reboot the host by running the command: reboot -f.

After following these steps, your root password on the ESXi host should be successfully reset, allowing you to access your system once again.