After authenticating to FDE, the BIOS posts and blank screen has only blinking cursor. The HDD light also shows there is disc activity.
This happens when something went wrong during the installation process. In this case, the FDE Operating System is still in operation. You may do the following to resolve the issue:
- Decrypt the device from the Recovery Console.
- Restore boot via the Recovery Console.
- Repair the OS with the existing administrative tools.
- When you get the OS operational again, you can then reinstall FDE.