[Bug 1654702] [NEW] user _apt can't write to directory "partial"

[Thomas Mayer]

Public bug reported:

Permissions for directory "partial" are:

 ls -lh /var/lib/update-notifier/package-data-downloads/
insgesamt 0
drwxr-xr-x 1 root root 0 Jan 7 04:21 partial
-rw-r--r-- 1 root root 0 Jan 7 04:21 ttf-mscorefonts-installer.failed

A user with name "_apt" can't write to directory "partial".

That happened to me when trying to let msttcorefonts-installer download
its fonts:

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: Keine Berechtigung)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: update-notifier 3.168.3
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
Date: Sat Jan  7 04:38:14 2017
InstallationDate: Installed on 2014-11-29 (770 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
ProcEnviron:
 LANGUAGE=de_DE
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: update-notifier
UpgradeStatus: Upgraded to xenial on 2016-06-15 (205 days ago)
upstart.update-notifier-release.log: Sa 7. Jan 03:43:11 CET 2017 new release available

** Affects: update-notifier (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "Informationen verfügbar_107.png"
   https://bugs.launchpad.net/bugs/1654702/+attachment/4801086/+files/Informationen%20verf%C3%BCgbar_107.png

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https://bugs.launchpad.net/bugs/1654702

Title:
  user _apt can't write to directory "partial"

Status in update-notifier package in Ubuntu:
  New

Bug description:
  Permissions for directory "partial" are:

   ls -lh /var/lib/update-notifier/package-data-downloads/
  insgesamt 0
  drwxr-xr-x 1 root root 0 Jan 7 04:21 partial
  -rw-r--r-- 1 root root 0 Jan 7 04:21 ttf-mscorefonts-installer.failed

  A user with name "_apt" can't write to directory "partial".

  That happened to me when trying to let msttcorefonts-installer
  download its fonts:

  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: Keine Berechtigung)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: update-notifier 3.168.3
  ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
  Uname: Linux 4.4.0-57-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  Date: Sat Jan  7 04:38:14 2017
  InstallationDate: Installed on 2014-11-29 (770 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  ProcEnviron:
   LANGUAGE=de_DE
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-notifier
  UpgradeStatus: Upgraded to xenial on 2016-06-15 (205 days ago)
  upstart.update-notifier-release.log: Sa 7. Jan 03:43:11 CET 2017 new release available

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