Ubuntu – How to fix TPM error 256

17.1018.04tpmupgrade

This happened when I attempted to upgrade from 17.10 to 18.04.

I receive this error during boot, and my Ubuntu that I've had a few months running without issue twice (not counting during the upgrade) randomly reset to select user and login screen but let me back into my desktop no problem.

During the unpacking part of the update it did this and hung in a select user, type password loop not letting me into the desktop. I turned my computer off twice and on the third try I get a consistent error 256 after selecting Ubuntu from the GRUB menu. My system was at full battery during all these random resets.

How do I fix my system without losing my files? It was only 1/10 or 1/20th unpacked on the update bar. I'm on an Asus with Intel processor/graphics card.

Best Answer

Please go into your BIOS/Setup, find something like Security, then looks for a Chip or TPM item; change the setting to disabled and that should clear the Trusted Platform Module issue.

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