[Bug 1785544] Re: package trousers 0.3.14+fixed1-1build1 failed to install/upgrade: installed trousers package post-installation script subprocess returned error exit status 1

[Juhani Numminen]

*** This bug is a duplicate of bug 1763588 ***
    https://bugs.launchpad.net/bugs/1763588

** This bug has been marked a duplicate of bug 1763588
   package trousers 0.3.14+fixed1-1build1 failed to install/upgrade: installed trousers package post-installation script subprocess returned error exit status 1

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Title:
  package trousers 0.3.14+fixed1-1build1 failed to install/upgrade:
  installed trousers package post-installation script subprocess
  returned error exit status 1

Status in trousers package in Ubuntu:
  New

Bug description:
  Hi,

  I installed trousers on my Dell XPS 13, and the following error
  occurred:

  Aug 06 12:03:45 linkitivity trousers[11173]:  * Starting Trusted Computing daemon tcsd
  Aug 06 12:03:45 linkitivity trousers[11173]: /etc/init.d/trousers: 32: [: /dev/tpm0: unexpected operator
  Aug 06 12:03:45 linkitivity trousers[11173]:  * TPM device owner for /dev/tpmrm0 is not 'tss', this can cause problems.
  Aug 06 12:03:45 linkitivity tcsd[11196]: TCSD TDDL[11196]: TrouSerS ioctl: (25) Inappropriate ioctl for device
  Aug 06 12:03:45 linkitivity tcsd[11196]: TCSD TDDL[11196]: TrouSerS Falling back to Read/Write device support.
  Aug 06 12:03:45 linkitivity tcsd[11196]: TCSD TCS[11196]: TrouSerS ERROR: TCS GetCapability failed with result = 0x1e
  Aug 06 12:03:45 linkitivity trousers[11173]:    ...fail!
  Aug 06 12:03:45 linkitivity systemd[1]: trousers.service: Control process exited, code=exited status=30
  Aug 06 12:03:45 linkitivity systemd[1]: trousers.service: Failed with result 'exit-code'.
  Aug 06 12:03:45 linkitivity systemd[1]: Failed to start LSB: starts tcsd.

  
  The first problem in /etc/init.d/trousers is:

                  if [ ! -e /dev/tpm* ]
                  then
                          log_warning_msg "device driver not loaded, skipping."
                          exit 0
                  fi

  I have two devices that match /dev/tpm*: /dev/tpm0 and /dev/tpmrm0,
  and [ -e only works with one input. This doesn't cause the warning to
  fire, so it's purely a cosmetic warning.

  The second warning seems to related to the ownership of /dev/tpmrm0:

  # ls -l /dev/tpm*
  crw------- 1 tss  tss   10,   224 Aug  6 12:03 /dev/tpm0
  crw------- 1 root root 253, 65536 Jul 27 19:50 /dev/tpmrm0

  So it looks like /dev/tpm0 is set correctly but not /dev/tpmrm0.

  Looking at the source, it seems that debian/trousers.udev contains
  only the following:

  KERNEL=="tpm[0-9]*", MODE="0600", OWNER="tss", GROUP="tss"

  
  I think per some reading online it needs to read something like this:

  KERNEL=="tpmrm[0-9]*|tpm[0-9]*", MODE="0660", OWNER="tss", GROUP="tss"

  Editing /lib/udev/rules.d/45-trousers.rules to include this line and
  running `udevadm trigger` makes the warning go away.

  Finally, the whole thing fails with "ERROR: TCS GetCapability failed
  with result = 0x1e". This is apparently due to the presence of a TPM2
  chip rather than the 1.2 chip that trousers understands.

  I think trousers should print a loud warning in this case (and
  preferably a much more informative one!) but that it should not fail
  to configure the package.

  This is Ubuntu 18.04, with:
  trousers:
    Installed: 0.3.14+fixed1-1build1
    Candidate: 0.3.14+fixed1-1build1
    Version table:
   *** 0.3.14+fixed1-1build1 500
          500 http://au.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: trousers 0.3.14+fixed1-1build1
  ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
  Uname: Linux 4.15.0-29-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  AptOrdering:
   libtspi1:amd64: Install
   libtpm-unseal1:amd64: Install
   trousers:amd64: Install
   tpm-tools:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  Date: Mon Aug  6 12:03:45 2018
  ErrorMessage: installed trousers package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2017-04-05 (487 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3ubuntu1
  PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.2
  SourcePackage: trousers
  Title: package trousers 0.3.14+fixed1-1build1 failed to install/upgrade: installed trousers package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to bionic on 2018-04-30 (97 days ago)

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