If you ever need to reset the root password for your VMware Identity Manager (vIDM) appliance follow the steps below.
1. Reboot the appliance
2. when the bootloader screen appears, press [p] on the SUSE Linux option.
3. You will be prompted for a password, enter the following password
H0rizon!
Select the first option and press [e]
You will then be prompted with a startup line, enter the following.
single init=/bin/bash
Confirm and press [b].
Once booted enter the following.
passwrd root
Then add the required new password.
Once changed enter.
shutdown -h -n now
Start the appliance as normal and password has now been changed.