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Playing With Others
Updated 141 Days AgoPublic

If Windows has booted on a system and provisioned the TPM, it'll set a random owner password. This is a problem on Linux if you want to do anything that requires owner auth (most operations don't), but you can fix it by doing:

echo 5 >/sys/class/tpm/tpm0/ppi/request

and rebootiing. This asks the firmware to clear all TPM contents. Obviously, this invalidates all existing secrets (including Bitlocker keys, so you'll need to recover that if you dual boot)

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Jan 31 2024, 6:29 PM

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