[Bug 1656846] Re: package management creates user _apt locks var cache apt archives partial

[Julian Andres Klode]

*** This bug is a duplicate of bug 1522675 ***
    https://bugs.launchpad.net/bugs/1522675

Warnings are not errors, and this is really a duplicate of bug 1522675

** This bug has been marked a duplicate of bug 1522675
   Warning messages about unsandboxed downloads

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Title:
  package management creates user _apt locks var cache apt archives
  partial

Status in apt package in Ubuntu:
  New

Bug description:
  Xubuntu 16.04.1LTS

  Package management system has created a user _apt.
  _apt:x:105:65534::/nonexistent:/bin/false
  This user is only the only user allowed to write to directory
  drwx------ 2 _apt root  4096 Jan 15 22:31 partial

  while
  var/lib/update-notifier/package-data-downloads
  drwxr-xr-x 2 root root 4096 Jan 16 09:19 partial

  This ownership situation causes permission errors for dpkg, synaptic, apt-get
  for example
  /var/log/apt/term.log

  
  W: Can't drop privileges for downloading as file '/var/lib/update-notifier/package-data-downloads/partial/adobe-flashplugin_20170110.1.orig.tar.gz' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
  Installing from local file /var/lib/update-notifier/package-data-downloads/partial/adobe-flashplugin_20170110.1.orig.tar.gz
  ...
  W: Can't drop privileges for downloading as file '/var/lib/update-notifier/package-data-downloads/partial/andale32.exe' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

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