[Bug 1723105] Re: Upgrade to 1.28-1ubuntu2.2 fails because postrm script is a directory containing kernel modules

Fri Oct 13 16:20:25 UTC 2017

I was unable to recreate this issue:

After this operation, 389 kB of additional disk space will be used.
Get:1 http://192.168.10.7/ubuntu xenial/main amd64 libidn11 amd64 1.32-3ubuntu1 [45.5 kB]
Get:2 http://192.168.10.7/ubuntu xenial/universe amd64 idn amd64 1.32-3ubuntu1 [75.6 kB]
Fetched 121 kB in 0s (0 B/s)   
Selecting previously unselected package libidn11:amd64.
(Reading database ... 15457 files and directories currently installed.)
Preparing to unpack .../libidn11_1.32-3ubuntu1_amd64.deb ...
Unpacking libidn11:amd64 (1.32-3ubuntu1) ...
Selecting previously unselected package idn.
Preparing to unpack .../idn_1.32-3ubuntu1_amd64.deb ...
Unpacking idn (1.32-3ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Setting up libidn11:amd64 (1.32-3ubuntu1) ...
Setting up idn (1.32-3ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
(xenial-amd64)root at impulse:/home/bdmurray#  ls -lh /var/lib/dpkg/info/libidn11*
-rw-r--r-- 1 root root  254 Oct 13 09:18 /var/lib/dpkg/info/libidn11:amd64.list
-rw-r--r-- 1 root root  221 Nov  4  2015 /var/lib/dpkg/info/libidn11:amd64.md5sums
-rw-r--r-- 1 root root   19 Nov  4  2015 /var/lib/dpkg/info/libidn11:amd64.shlibs
-rw-r--r-- 1 root root 2.8K Nov  4  2015 /var/lib/dpkg/info/libidn11:amd64.symbols
-rw-r--r-- 1 root root   60 Nov  4  2015 /var/lib/dpkg/info/libidn11:amd64.triggers
(xenial-amd64)root at impulse:/home/bdmurray# apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
  idn libidn11
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 122 kB of archives.
After this operation, 2048 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://192.168.10.7/ubuntu xenial-updates/main amd64 libidn11 amd64 1.32-3ubuntu1.2 [46.5 kB]
Get:2 http://192.168.10.7/ubuntu xenial-updates/universe amd64 idn amd64 1.32-3ubuntu1.2 [75.6 kB]
Fetched 122 kB in 0s (0 B/s)   
(Reading database ... 15476 files and directories currently installed.)
Preparing to unpack .../libidn11_1.32-3ubuntu1.2_amd64.deb ...
Unpacking libidn11:amd64 (1.32-3ubuntu1.2) over (1.32-3ubuntu1) ...
Preparing to unpack .../idn_1.32-3ubuntu1.2_amd64.deb ...
Unpacking idn (1.32-3ubuntu1.2) over (1.32-3ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Setting up libidn11:amd64 (1.32-3ubuntu1.2) ...
Setting up idn (1.32-3ubuntu1.2) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
(xenial-amd64)root at impulse:/home/bdmurray# ls -lh /var/lib/dpkg/info/libidn11*                     
-rw-r--r-- 1 root root  254 Oct 13 09:19 /var/lib/dpkg/info/libidn11:amd64.list
-rw-r--r-- 1 root root  221 Sep 25 11:06 /var/lib/dpkg/info/libidn11:amd64.md5sums
-rw-r--r-- 1 root root   19 Sep 25 11:06 /var/lib/dpkg/info/libidn11:amd64.shlibs
-rw-r--r-- 1 root root 2.8K Sep 25 11:06 /var/lib/dpkg/info/libidn11:amd64.symbols
-rw-r--r-- 1 root root   60 Sep 25 11:06 /var/lib/dpkg/info/libidn11:amd64.triggers

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https://bugs.launchpad.net/bugs/1723105

Title:
  Upgrade to 1.28-1ubuntu2.2 fails because postrm script is a directory
  containing kernel modules

Status in libidn package in Ubuntu:
  New

Bug description:
  When trying to upgrade my Ubuntu 14.04.5 LTS server using the command
  sudo apt-get dist-upgrade, the upgrade consistently failed while
  trying to upgrade libidn11 to version 1.28-1ubuntu2.2 with the
  following error message:

  unable to install (supposed) new info file
  `/var/lib/dpkg/tmp.ci/postrm': Is a directory

  I determined that instead of being a script,
  /var/lib/dpkg/info/libidn11:amd64.postrm was in fact a directory! It
  contained two kernel modules, llc.ko and llc2.lo. I will attach the
  two files.

  To get the package to install and the upgrade operation to proceed, I
  renamed /var/lib/dpkg/info/libidn11:amd64.postrm to
  /var/lib/dpkg/info/libidn11:amd64.postrm.bak, after which a renewed
  dist-upgrade proceeded without any warnings or errors.

  After the installation /var/lib/dpkg/info/libidn11:amd64.postrm once
  again existed, and is now a script, as expected.

  What gives? Is this a bug in either this or the previous version of
  libidn? Is it now correctly installed? Was I hacked (I get a bit
  nervous when executable files spontaneously appear in random places)?
  I scanned the two files with virustotal.com, and it found nothing, but
  I don't think that means much.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: libidn11 1.28-1ubuntu2.2
  ProcVersionSignature: Ubuntu 3.13.0-129.178-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-129-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.25
  Architecture: amd64
  Date: Thu Oct 12 14:41:57 2017
  Dependencies:
   gcc-4.9-base 4.9.3-0ubuntu4
   libc6 2.19-0ubuntu6.13
   libgcc1 1:4.9.3-0ubuntu4
   multiarch-support 2.19-0ubuntu6.13
  SourcePackage: libidn
  UpgradeStatus: No upgrade log present (probably fresh install)

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