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@@ -227,60 +227,53 @@ In order to execute ELTT2, you need to compile it first:
./eltt2 -z 17
2.2 Examples:
## 2.2 Examples:
In order to work with the TPM, perform the following steps:
- Send the TPM2_Startup command: ./eltt2 -u
In order to work with the TPM, perform the following steps:
- Send the TPM2_Startup command: ./eltt2 -u
3. If you have questions
# 3. If you have questions
If you have any questions or problems, please read the section "FAQ and
Troubleshooting" in this document.
In case you still have questions, contact your local Infineon
Representative.
Further information is available at http://www.infineon.com/tpm.
If you have any questions or problems, please read the section "FAQ and
Troubleshooting" in this document.
In case you still have questions, contact your local Infineon
Representative.
Further information is available at http://www.infineon.com/tpm.
# 4. FAQ and Troubleshooting
4. Release Info
If you encounter any error, please make sure that
- the TPM is properly connected.
- the TPM driver is loaded, i.e. check that "/dev/tpm0" exists. In case of
driver loading problems (e.g. shown by "Error opening device"), reboot
your system and try to load the driver again.
- ELTT2 has been started with root permissions. Please note that ELTT2 needs
root permissions for all commands.
- the TPM is started. (See section 2.2 in this document on how to do this.)
- Trousers do not run anymore. In some cases the Kernel starts Trousers by
booting.
Shut down Trousers by entering the following command:
sudo pkill tcsd
This is version 1.0. This version is a general release.
The following list shows the most common errors and their solution:
The ELTT2 response is "Error opening the device.":
- You need to load a TPM driver before you can work with ELTT2.
- You need to start ELTT2 with root permissions.
The ELTT2 responds with error code 0x100.
- You need to send the TPM2_Startup command, or you did send it twice. In
case you have not sent it yet, do so with "./eltt2 -u".
5. FAQ and Troubleshooting
The TPM does not change any of the permanent flags shown by sending the "-g"
command , e.g. after a force clear.
- The TPM requires a reset in order to change any of the permanent flags.
Press the reset button or disconnect the TPM to do so.
If you encounter any error, please make sure that
- the TPM is properly connected.
- the TPM driver is loaded, i.e. check that "/dev/tpm0" exists. In case of
driver loading problems (e.g. shown by "Error opening device"), reboot
your system and try to load the driver again.
- ELTT2 has been started with root permissions. Please note that ELTT2 needs
root permissions for all commands.
- the TPM is started. (See section 2.2 in this document on how to do this.)
- Trousers do not run anymore. In some cases the Kernel starts Trousers by
booting.
Shut down Trousers by entering the following command:
sudo pkill tcsd
The following list shows the most common errors and their solution:
The ELTT2 response is "Error opening the device.":
- You need to load a TPM driver before you can work with ELTT2.
- You need to start ELTT2 with root permissions.
The ELTT2 responds with error code 0x100.
- You need to send the TPM2_Startup command, or you did send it twice. In
case you have not sent it yet, do so with "./eltt2 -u".
The TPM does not change any of the permanent flags shown by sending the "-g"
command , e.g. after a force clear.
- The TPM requires a reset in order to change any of the permanent flags.
Press the reset button or disconnect the TPM to do so.
The value of a PCR does not change after sending PCR extend or reset.
- With the application permissions you cannot modify every PCR. For more
details, please refer to the description for the different PCR commands
The value of a PCR does not change after sending PCR extend or reset.
- With the application permissions you cannot modify every PCR. For more
details, please refer to the description for the different PCR commands
in this file.