[Bug 1714319] Re: initramfs has duplicate copies of libnss_files on x86_64

[Scott Moser]

** Bug watch added: Debian Bug tracker #874502
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=874502

** Also affects: plymouth (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=874502
   Importance: Unknown
       Status: Unknown

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Title:
  initramfs has duplicate copies of libnss_files on x86_64

Status in plymouth package in Ubuntu:
  Confirmed
Status in plymouth package in Debian:
  Unknown

Bug description:
  I'm not sure why this ends up happening, but

  $ dpkg -S `which mkinitramfs`
  initramfs-tools-core: /usr/sbin/mkinitramfs

  $ dpkg-query --show initramfs-tools-core
  initramfs-tools-core	0.125ubuntu9

  $ sudo update-initramfs -t -c -k $(uname -r)
  update-initramfs: Generating /boot/initrd.img-4.12.0-11-generic

  ## skipcpio is in the dracut-core package and is required to
  ## extract a initramfs that has an 'early archive' in it. Such
  ## a thing would happen if you have installed intel-microcode.
  $ rm -Rf x; mkdir -p x;
  $ /usr/lib/dracut/skipcpio /boot/initrd.img-4.12.0-11-generic | zcat | ( cd x && cpio -uid )
  91209 blocks

  $ ( cd x && ls -l lib/libnss* lib/x86_64-linux-gnu/libnss* )
  -rw-r--r-- 1 ubuntu ubuntu 47608 Aug 31 17:53 lib/libnss_files-2.24.so
  lrwxrwxrwx 1 ubuntu ubuntu    20 Aug 31 17:53 lib/libnss_files.so.2 -> libnss_files-2.24.so
  -rw-r--r-- 1 ubuntu ubuntu 47608 Aug 31 17:53 lib/x86_64-linux-gnu/libnss_files-2.24.so
  lrwxrwxrwx 1 ubuntu ubuntu    20 Aug 31 17:53 lib/x86_64-linux-gnu/libnss_files.so.2 -> libnss_files-2.24.so

  $ ( cd x && md5sum lib/libnss* lib/x86_64-linux-gnu/libnss* )
  81c4fbcd350e004f1f59bfa50f9d3769  lib/libnss_files-2.24.so
  81c4fbcd350e004f1f59bfa50f9d3769  lib/libnss_files.so.2
  81c4fbcd350e004f1f59bfa50f9d3769  lib/x86_64-linux-gnu/libnss_files-2.24.so
  81c4fbcd350e004f1f59bfa50f9d3769  lib/x86_64-linux-gnu/libnss_files.so.2

  $ grep -r nss /usr/lib/initramfs-tools/ || echo nothing obvious
  nothing obvious

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: initramfs-tools 0.125ubuntu9
  ProcVersionSignature: User Name 4.12.0-11.12-generic 4.12.5
  Uname: Linux 4.12.0-11-generic x86_64
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  Date: Thu Aug 31 16:52:28 2017
  Ec2AMI: ami-000000e4
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: initramfs-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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