Bug 352619

Summary:	update fails: An error occured while applying changes
Product:	[Applications] Discover	Reporter:	Peter Eastwick <xargoth36>
Component:	Updates	Assignee:	Jonathan Thomas <echidnaman>
Status:	RESOLVED DOWNSTREAM
Severity:	normal	CC:	aleixpol, seppo0911, sitter
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Picture of error message window Terminal printout of upgrade

Description Peter Eastwick 2015-09-12 15:19:31 UTC

Whenever I want to update my packages I receive the following error message:
"An error occurred while applying changes:"

This problem exists only since a few days, before that I had no problems.
When I click on "Details" no further details on the error message are shown

Reproducible: Always

Steps to Reproduce:
1.open Muon Update Manager
2.Check for Updates 
3.Install --> BOOM FAIL

Comment 1 Peter Eastwick 2015-09-12 15:21:00 UTC

I'm using Ubuntu 14.04.3 LTS

Comment 2 Peter Eastwick 2015-09-12 19:28:45 UTC

maybe the following info is helpful too. when I run muon-updater from the console I observe the following error message:
found error while replying QDBusError("org.freedesktop.DBus.Error.InvalidArgs", "")

Comment 3 Seppo 2015-12-16 10:09:10 UTC

Created attachment 96120 [details]
Picture of error message window

Comment 4 Seppo 2015-12-16 10:10:28 UTC

Created attachment 96121 [details]
Terminal printout of upgrade

Comment 5 Seppo 2015-12-16 10:13:05 UTC

I have 2 Kubuntu machines, up to date version 15.10.
Both has same error (see attached picture) every time they are updated with Muon, or if I try to install or remove packages with Muon Discover. The error message is always the same.
Muon ver: 5.4.2

I run upgrade also from treminal.  Listing of the terminal printout is attached.

Comment 6 Seppo 2016-03-02 14:43:16 UTC

I find out that:
both of my machines where clean install, ie. in the installation process two disk partition were made. First one only 243MB (the one where system files are stored). During system update process Muon leaves old system files on the disk. After few system updates system disk becomes to full and updates are no longer possible.
I used command:   sudo apt-get autoremove -f    to get more disk space.

In my opinion, Muon should remove old, unnecessary, files from disk during update process.

Comment 7 Aleix Pol 2016-09-14 10:15:16 UTC

Looks like a packaging issue in the distribution.