How to clear TPM DA lock on Redhat machine

[jufailkapoor]

I am using HW with TPM module and with RHEL OS installed

We have binded password with Luks, so that we dont need to enter password on every boot.

when multiple abrupt power cycle happened, the TPM module got locked. I think DA lock happened. 

1. How to come out from such lock out and recover automatically?

Regards

Jufail

[Sneha_P]

Hi @jufailkapoor,

The TPM DA lock might be recoverable in certain scenarios, but the recovery mechanism is confidential and can be found in the databook.

The databook can be downloaded only from MyIcp.com. Please login to your account to download.

If you can't find the databook, please contact your distributor.

[Sharath_V · Accepted solution]

Hi @jufailkapoor ,

As mentioned by @Sneha_P , the solution to your problem is available in a confidential databook. Could you please check internally within your company if you have access to myicp and the confidential documents (databook) of TPM design decisions? Please check if the databook has enough hints for you to provide the solution.

Please provide feedback on the same so we can support appropriately over private channels (but only as long as your company has signed NDA, which you need to check and let us know).

[Sneha_P]

Hi @jufailkapoor,

Please let us know if your query was resolved. We will lock the thread in 3 days. In case your problem is not resolved, please create a new thread and we will be happy to help.