[Bug 1522675] Re: Warning messages about unsandboxed downloads

[JohnWashington]

"It's not like you get hundreds of them each day."

True.  But even one such message puzzles and worries users.  360 users
have marked this bug, but imagine how many thousands don't even know to
look on Launchpad?

This report was filed 18 months ago.  I don't doubt it's hard to fix it
for systems that have been upgraded.  But this affects a fresh install
of 16.04.2.  Is it hard to make _apt the owner of .../package-data-
downloads/partial/ when Ubuntu is freshly installed?

I'm sure some of us reporting this bug come across as whiners, part of
the problem, not part of the solution.  Chippendale didn't send out
furniture with splinters, he was passionate about quality.  We're
passionate about Linux.  That's why we go to the trouble of reporting
bugs.

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https://bugs.launchpad.net/bugs/1522675

Title:
  Warning messages about unsandboxed downloads

Status in apt package in Ubuntu:
  Fix Released
Status in synaptic package in Ubuntu:
  Triaged
Status in update-notifier package in Ubuntu:
  Triaged
Status in apt package in Debian:
  Fix Released

Bug description:
  Recently we got new versions for synaptic 0.82+build1 & apt 1.1.3, but
  now get that error when installing/upgrading some packages:

  Setting up libc6-dbg:amd64 (2.21-0ubuntu5) ...
  Processing triggers for libc-bin (2.21-0ubuntu5) ...
  W: Can't drop privileges for downloading as file '/root/.synaptic/tmp//tmp_cl' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

  From nautilus, i'm seeing a /root/ folder locked (x on its icon) and
  the folder is empty (no /.synaptic/ sub-folder or file), so the above
  error.

  oem at u64:~$ ls -l .synaptic
  total 4
  -rw-rw-r-- 1 oem oem   0 Aug 25 11:19 options
  -rw-rw-r-- 1 oem oem 236 Aug 25 11:19 synaptic.conf

  oem at u64:~$ ls -l /var/lib/apt/lists/
  ....
  -rw-r----- 1 root root        0 Sep 20 06:36 lock
  drwx------ 2 _apt root    16384 Sep 24 15:25 partial
  ......

  oem at u64:~$ sudo ls -l /var/lib/update-notifier/package-data-downloads/
  .....
  drwxr-xr-x 2 _apt root 4096 Sep 22 23:33 partial

  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: synaptic 0.82+build1
  ProcVersionSignature: Ubuntu 4.3.0-1.10-generic 4.3.0
  Uname: Linux 4.3.0-1-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.2-0ubuntu8
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Dec  4 05:23:25 2015
  SourcePackage: synaptic
  UpgradeStatus: No upgrade log present (probably fresh install)

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