Changing the grub password
If the appliance fails to boot, on the advice of Customer Support you might need to access the boot configuration (grub.conf). You might also be required by your organization's security procedures, to change the default grub password.
The default grub password is: B00tl0ad3r!
You must be the root user to edit grub.conf or change the grub password.
To change the grub password:
As the root user, enter:
# /sbin/grub-crypt --sha-512
You are prompted to enter the new password twice and the utility returns the SHA-512 hash of the password.
Copy the hashed password and use it to replace the existing value in the
password --encrypted replacethisvalue