Disabling the GRUB Credentials
You can disable the username and password that is set for accessing the GRUB menu. When you disable access to the GRUB, then the username and password that are set get deleted. You must enable the GRUB Credentials Settings option and set new credentials to secure the GRUB again.
To disable access to the GRUB menu:
Login to the appliance CLI Manager as an administrative user.
Navigate to Administration > GRUB Credentials Settings.
The screen to enter the root credentials appears.
Enter the root credentials and select OK.
The GRUB credentials screen appears.
Select Disable and press ENTER.
A message Credentials for the GRUB menu has been disabled appears.