[Bug 1302342] Re: Ubuntu 1404 b2 - "you don't have priviledges to install updates" and any system modification is refused

[pico]

*** This bug is a duplicate of bug 1164558 ***
    https://bugs.launchpad.net/bugs/1164558

I confirm the problems after a partial upgrate

Ubuntu Release: 14.04
Problems:
 - Update manager do not work : "You are not allowed to perform this action"
- Audio do not work
- Shutdown/reboot not possible from GUI
- VPN and Network Config edit NOT Possible
- USB or externa disk not mounted
- Even other root actions are not allowed from GUI (add user, and so on..)


Triing to install new SW from SW center I have:
Software can't be installed or removed because the authentication service is not available. (org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.199'}): org.debian.apt.install-or-remove-packages

I think the problem is related to the PolicyKit, but I'm not sure...
Regards
P.

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https://bugs.launchpad.net/bugs/1302342

Title:
  Ubuntu 1404 b2 - "you don't have priviledges to install updates" and
  any system modification is refused

Status in “update-manager” package in Ubuntu:
  Confirmed

Bug description:
  This is a serious bug as it stops all updates even corrections! It
  also stops logging out as this needs priveldges. The only solution is
  the power switch! Also, even as a VM, rather than as a native OS, this
  can mean host shutdown.

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