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[Matthew Paul Thomas <mpt@xxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1110188 ***
    https://bugs.launchpad.net/bugs/1110188

Marking as a duplicate of a newer bug report because it is more concise.

** This bug has been marked a duplicate of bug 1110188
   USC allows a package installation to uninstall vital packages

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https://bugs.launchpad.net/bugs/793318

Title:
  Should confirm package conflicts from the user as apturl can silently
  uninstall vital packages like network-manager

Status in apturl package in Ubuntu:
  New
Status in software-center package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: apturl, software center

  Update:
  Please note that this report has a much wider scope than just APTURL not preventing system destruction.
  I used to claim that Windows' installer is a black box hiding from the user what it's stuffing into the system.
  You may well install a whole database system bundle unnoticed just to use a small program.
  And you may well install it in English when you would have liked it in French.
  On the opposite, Ubuntu is telling you package by package, file by file, with exact byte size what it is installing.
  It is showing you what's going on

  And now I must tell them that Ubuntu, in a constant strive to resemble Windows, has become just as bad.
  They even removed Synaptics.

  ---EOU ---

  This happened on Ubuntu 10.04 upgraded from 8.10 and with latest
  updates applied.

     1. What you expected to happen

  The same as what happened, but without the inconvenience

     2. What actually happened

  In order to help Belgian people paying their income taxes, I reviewed, modified and tested
  http://doc.ubuntu-fr.org/tutoriel/utiliser_carte_identite_electronique_belge
  In the process, I uninstalled all the Belgian middleware *beid* as well as *pcsc* software.
  (Not pcsclite1 because network-manager depends on it)

  Then I clicked the following link on that page   apt://pcscd,libpcsclite-dev,beidgui
  And this is what happened, taken from the APT logs.
  APTURL did not display what it was doing, even less ask the permission to do it:

  Start-Date: 2010-10-17  05:06:49
  Install: pcscd (1.5.3-1ubuntu4)
  Remove: libacr38ucontrol0 (1.7.10-1), network-manager (0.8-0ubuntu3), libgnokii5 (0.6.28.dfsg-1ubuntu0.1), ubuntu-desktop (1.197), network-manager-gnome (0.8-0ubuntu3), libpcsclite1 (1.5.3-1ubuntu4.1), gnome-phone-manager (0.65-1ubuntu2), libacr38u (1.7.10-1), wpasupplicant (0.6.9-3ubuntu3)
  End-Date: 2010-10-17  05:07:56

  Start-Date: 2010-10-17  07:05:14
  Remove: pcscd (1.5.3-1ubuntu4)
  End-Date: 2010-10-17  07:05:32

  Start-Date: 2010-10-17  07:34:37
  Remove: network-manager (0.8-0ubuntu3), network-manager-gnome (0.8-0ubuntu3), libpcsclite1 (1.5.3-1ubuntu4.1), wpasupplicant (0.6.9-3ubuntu3)
  End-Date: 2010-10-17  07:35:16

  The system must never uninstall the network-manager nor anything
  without asking the permission.

     3. The minimal series of steps necessary to make it happen, where
  step 1 is "start the program"

  1: "start the program"
  2: all of the above

  Conclusions:

  1 it's an extremely bad idea to make an installer (APTURL) behave silently and blindly.
  No detail of what is being done, no permission and even no indication that the operation is complete.
  I have seen that the Ubuntu Software Center operates the same silent, blind and dangerous way too.

  2 it looks like it's a bad idea to have each packet of the same
  aptline installed separately

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