RE: [TrouSerS-users] Can not enable the TPM after clearing it.

[boye <bo...@sj...>]

In my T42's BIOS, I can only enable/disable the TPM chip and its sub
function. I cannot find how to clear the TPM in BIOS. And I have checked
that all the options are in Enable status. But I still cannot enable the
TPM. Is this the BIOS version issue? Do I need to update the BIOS?
	And, as this problem is brought by tpm-tools. Can I fix it also by
tpm-tools?

-----Original Message-----
Some of the commands that the tpm-tools package provides are intended
for systems that may not have full BIOS support for a TPM.  The T42
has full BIOS support for the TPM.  This means that you will need to
enter your BIOS setup in physical presence mode (for a ThinkPad this
means holding down the "Fn" key while powering on then releasing the
"Fn" key to then press the key to enter the BIOS setup).  Once
in the BIOS setup there should be an entry that allows you to enable
and clear the TPM.  This will put the TPM in the proper state to allow
you to take ownership via the tpm_takeownership command after you boot
your system.

Tom