The full prodecure can also be found on xcp-ng site.
- Reboot your XCP-ng into Grub boot menu.
- Select XCP-ng boot menu entry and press e key to edit boot options.
- Locate the read-only parameter ro and replace it with rw init=/sysroot/bin/sh.
- Press Ctrl + X to boot into single-mode.
- From the Emergency Mode prompt, execute the command chroot /sysroot.
- Once in single-mode, use passwd command to reset your XCP-ng root password.
- Reboot XCP-ng by sending Ctrl + Alt + Suppr.
- If everything went well, you should now be able to login with your new XCP-ng password.
