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I have installed tpm tools from Ubuntu. the version is 1.3.7 using tpm_nvinfo. 

root@test-hardware-1:/home/tseng/trousers-0.3.13# tpm_nvinfo
NVRAM index   : 0x10000001 (268435457)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x1000f000 (268496896)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x50000003 (1342177283)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x50000001 (1342177281)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x20000002 (536870914)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x40000001 (1073741825)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

NVRAM index   : 0x20000001 (536870913)
PCR read  selection:
PCR write selection:
Permissions   : 0x00000000 ()
bReadSTClear  : FALSE
bWriteSTClear : FALSE
bWriteDefine  : FALSE
Size          : 0 (0x0)

It shows incorrect size. Need to update to 1.3.8

Zanna
  • 70,465
Tseng Hu
  • 1

1 Answers1

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See this bug report. There was a patch added to tpm-tools that broke tpm_nvinfo. Recompiling from source with the recommended patch changes worked for me on RHEL7.

dramzy
  • 101
  • 1