Ubuntu Boot Tpm Error

TPM 2.0 and GRUB 204 Compatibility

Overview

Trusted Platform Module (TPM) 2.0 is a hardware-based security feature that can be used to enhance the security of a system. However, there are some compatibility issues between TPM 2.0 and the GNU GRand Unified Bootloader (GRUB) 204.

Kernel Module

First, you need to check if your kernel loads a TPM module. You can do this by running the following command:

$ lsmod | grep tpm

If you see a line that says "tpm", then your kernel is loading a TPM module.

GRUB Version

The only version of GRUB that is known to be compatible with TPM 2.0 is GRUB 204. If you are using an older version of GRUB, you will need to upgrade to GRUB 204 in order to use TPM 2.0.

TPM Initialization

Before you can use TPM 2.0, you need to initialize it. You can do this by running the following command:

$ tpm2_startup

This command will initialize the TPM and make it ready for use.

TPM States

There are three possible states for a TPM:

• Inactive: The TPM is not active and cannot be used.
• Security chip is visible but not owned: The TPM is active, but it is not owned by any user.
• Security chip is owned: The TPM is active and it is owned by a user.

In order to use TPM 2.0, the TPM must be in the "Security chip is owned" state.

Installation

Once you have checked the kernel module, GRUB version, and TPM initialization, you can install the TPM 2.0 driver. You can do this by following the instructions in the documentation for your specific operating system.

Conclusion

By following these steps, you can enable TPM 2.0 on your system and use it to enhance the security of your system.