Symptômes
This error may occur on Dell systems with the Ubuntu operating system that received system updates after February 5, 2018. This issue will occur on any version of Ubuntu.
Cause
The cause of this issue is an Ubuntu update searching for a TPM chipset. When the TPM is disabled, it fails to find the TPM, and this error message is displayed. This issue prevents the computer from booting.
Résolution
To resolve this issue the Trusted Platform Module (TPM) must be turned on in the BIOS. The TPM function need only be turned on, but the TPM functionality can be left either disabled or enabled as needed.
To turn on the TPM, follow these steps:
- Power on the system and press the F2 key to enter the system setup (BIOS).
- Using the mouse/touchpad or keyboard arrows, navigate to Security, then to the TPM Security (TPM 2.0 on some systems) submenu.
- In the right pane of the BIOS, click or select the TPM ON Check box (See Figure 1 below).
- Click the APPLY button then click the EXIT button.
- The system will restart.
Figure 1.