[Trustedgrub-users] Running Grub (TrustedGRUB) from linux. No TPM Detected! Why

[Bill M. <bm...@va...>]

I noticed someone else had this same error with TrustedGRUB 1.1.3 and posted it somewhere but there was no answer to his problem

http://www.grounation.org/?post/2008/07/04/8-how-to-use-a-tpm-with-linux

I enabled TPM  (version 1.2) on my x86_64 system. Installed TrustedGRUB 1.1.5 on my system.

I have seen at boot up that TPM is detected and TrustedGrub is working. 

I also note I have created the public EK.

So at this point I figure I was successful. Now I wanted to create my own check file. But it's risky. So I saw you  can verify_pcr.

I have not seen any verify_pcr command whatsoever. I ran Grub, thinking it would have the command. What I got is this:

[root@localhost home]# grub
Probing devices to guess BIOS drives. This may take a long time.


    Trusted GRUB 1.1.5 (http://trustedgrub.sf.net)
    [ No TPM detected! ] (640K lower / 3072K upper memory)

 [ Minimal BASH-like line editing is supported.  For the first word, TAB
   lists possible command completions.  Anywhere else TAB lists the possible
   completions of a device/filename. ]

So it is the same as what Sudhanshu in the link above got but with older TrustedGRUB. Can someone help me?

I tried doing tpm_clear and then redisabling the TPM in bios then reenabling in BIOS over power recycles. And recreating my public key and SRK - several times. This did not change anything.

So why do I get "No TPM Detected" in TrustedGrub?

thanks

Bill Martin

bm...@va...