I wanted to try out pantheon desktop in Ubuntu 20.04. I ran: sudo add-apt-repository ppa:elementary-os/daily sudo add-apt-repository ppa:elementary-os/os-patches sudo apt update sudo apt dist-upgrade  I changed my mind, but I discovered that software-properties-gtk no longer worked, so I couldn't remove the PPAs via the UI. I removed them manually in /etc/apt/sources.list.d (also tried add-apt-repository --remove and ppa-purge) Still software-properties-gtk was not working, until I manually fixed /etc/lsb-release  and /etc/os-release by replacing the text mentioning elementary with the Ubuntu parts. Right now most seems to be working again. My two questions:  What exactly caused my mess (I guess sudo apt dist-upgrade is to blame) and what has been changed (like /etc/lsb-release)?  Is there a way (beside reinstalling) to cleanup the issues completely? (I just saw that files like /etc/issue and /etc/issue.net are also changed)
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What is the main difference between ppa-purge and add-apt-repository -r. Which one better clear residual items and reason to use one over another?  Does add-apt-repository -r should do what ppa-purge do?  Edit: Also do both remove key from apt's keyring?
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I can't say what steps brought me into this:  → sudo apt-get upgrade  Reading package lists... Done Building dependency tree        Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y dpkg: error processing libtiff4 (--configure):  libtiff4:i386 3.9.5-1ubuntu1.1 cannot be configured because libtiff4:k386 is in a different version (3.9.5-1ubuntu1) Errors were encountered while processing:  libtiff4 E: Sub-process /usr/bin/dpkg returned an error code (1)   The following commands all end up in the same error:  sudo apt-get install -f sudo dpkg --configure -a sudo apt-get --fix-broken install sudo apt-get --fix-missing install sudo apt-get clean sudo apt-get autoclean sudo apt-get autoremove   How to solve these kind of problems? And what did I do wrong?  UPDATE I managed to get apt working again by downgrading to previous version (3.9.5-1ubuntu1). However, next upgrade led to the same problem. But there is more info now:  (Reading database ...  dpkg: warning: files list file for package `libtiff4:k386' missing, assuming package has no files currently installed. (Reading database ... 281166 files and directories currently installed.) Preparing to replace libtiff4 3.9.5-1ubuntu1 (using .../libtiff4_3.9.5-1ubuntu1.1_i386.deb) ... Unpacking replacement libtiff4 ... dpkg: error processing libtiff4 (--configure):  libtiff4:i386 3.9.5-1ubuntu1.1 cannot be configured because libtiff4:k386 is in a different version (3.9.5-1ubuntu1) No apport report written because MaxReports is reached already                                                               Errors were encountered while processing:  libtiff4   So the real problem seems to be the missing libtiff4:k386 package. And k386 seems like a stupid typo somewhere.  I tracked down the file that introduces the typo:  **/var/lib/dpkg/status**  Package: libtiff4 Status: install ok half-configured Multi-Arch: same Priority: optional Section: libs Installed-Size: 528 Maintainer: Ubuntu Developers &lt;ubuntu-devel-discuss@lists.ubuntu.com&gt; Architecture: k386 Source: tiff Version: 3.9.5-1ubuntu1 Config-Version: 3.9.5-1ubuntu1 Depends: libc6 (&gt;= 2.11), libjpeg62 (&gt;= 6b1), zlib1g (&gt;= 1:1.1.4) Pre-Depends: multiarch-support Description: Tag Image File Format (TIFF) library  libtiff is a library providing support for the Tag Image File Format  (TIFF), a widely used format for storing image data.  This package  includes the shared library. Homepage: http://libtiff.maptools.org Original-Maintainer: Jay Berkenbilt &lt;qjb@debian.org&gt;   Fixing the typo solves the problem.
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This  forced removal of unity and ubuntu-desktop on my 16.04 Ubuntu system.   The offending package that is missing, but unity needs, seems to be compiz-core-abiversion-20151010. It seems to be a , and I can't find it to download.    As it happens, I mostly use LXDE on this system, but I'd be very unhappy if I used Unity...  Since I do occasionally use the Unity desktop, is there a fix for this?  Edit: related questions are rolling in. Looks like a major quality escape          Edit 2:
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Note : My question itself answers how to install GNOME  I want to install Gnome desktop in my 64-bit Ubuntu 14.04 I just googled and I found two ways to install GNOME. I also read other answers on Ask Ubuntu and googled but can't find what is difference between this both!  1st method to install is :  sudo apt-get install gnome-shell sudo apt-get install ubuntu-gnome-desktop   2nd method  sudo add-apt-repository ppa:gnome3-team/gnome3-staging sudo add-apt-repository ppa:gnome3-team/gnome3 sudo apt-get update sudo apt-get dist-upgrade   If I try installing using first way, it shows following errors:  The following packages have unmet dependencies: gnome-shell : Depends: gnome-settings-daemon (&gt;= 3.4.0) but it is not                        going to be installed               Recommends: gnome-control-center but it is not going to be installed ubuntu-gnome-desktop : Depends: gdm but it is not going to be installed                        Depends: gnome-control-center but it is not going to be installed                        Depends: gnome-session but it is not going to be installed                        Depends: gnome-settings-daemon but it is not going to be installed                        Depends: gnome-shell-extensions but it is not going to be installed E: Unable to correct problems, you have held broken packages.   And If I try installing 2nd way, after entering sudo apt-get dist-upgrade command it tells me that 299Mb space will be used and I just aborted it pressing n.  What is right way to install Gnome desktop in Ubuntu 14.04.  And one more thing, as there are two methods available to install Gnome, which is best? Up to I know using 1st method I can switch to Gnome desktop by logging out from Unity and choosing GNOME.   What would happen if I install Gnome using 2nd method? Will it remove Unity from my computer or I will be able to use both Unity by logging out?
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Using Ubuntu, I have a habit of running: sudo apt update sudo apt upgrade   on every startup. But for a month, I guess, there have been no updates whatsoever. The message shows: All packages are up to date  Now I am starting to worry. Can there be a fault in my update manager? As far as I know, I've made no changes to the package manager settings. But no updates for almost a month seems kind of weird. Any feedback would be helpful. Thanks.
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Does someone knows if it exists some ppa packages source for the newest Ubuntu version 19.10 i had problem with that when i upgraded from Ubuntu 19.04 to 19.10 i didn't work?
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I've added the ppa here  When I run sudo apt-get update, the software sources aren't found. I figured maybe they hadn't updated their repos to the newest version, so I changed the distro in Software Center to natty. Now when I try to install handbrake-gtk I get the message  handbrake-gtk : Depends: libnotify1 (&gt;= 0.5.0) but it is not installable Depends: libnotify1-gtk2.10 but it is not installable  It looks like the only packages starting with libnotify are libnotify0.4-cil libnotify-bin libnotify-dev libnotify4 libnotify-cil-dev libnotify-doc  The only relevant one seemed like libnotify4, which is already installed. The CLI version installs fine. How can I install Handbrake?
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This browser window showing    appears after I installed then uninstalled the Pantheon environment:  Originally this occurred after (and possibly before) ppa-purging the PPA only when not connected to the internet - a window without a title that the window manager would ignore would appear, then dissapear. The grep process in the background was me searching the root of the system for clues to the problem -  I found that some settings in gconf had been left which were causing a additional issue with the elementary theme set as default, which I then apt-get auotremoved)   After apt-get autoremoving the elementary packages it opens properly in a web browser  It seems to appear randomly (in a random web browser - I have Firefox, Chromium and Chrome installed - this started happening before installing Chrome), and after unlocking the screen, connecting to the internet etc. I think the URL it is pointing to is  which then redirects to    I installed it as shown , and then removed the PPAs using ppa-purge, and then used apt-get autoremove on any remaining bits.  I know this a third-party PPA, but I don't think these issues should occur after removing it. It also causes issues with the Unity desktop as shown . This feels uncomfortably like the things you get with adware/freeware/malware on windows..  Using Ubuntu 14.04 64bit    EDIT: By looking at htop I have found that the process is started as root the run as the active user (gamer) using su:           I have not a clue what point this has apart to encourage the rapid removal of everything relevant to elementaryOS...
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I have tried to find some PPA's for Ubuntu 14.04 but didn't find any. So I tried to install the package for previous releases, with no luck and a lot of dependencies issues.
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If I login on my Ubuntu 14.04, I get the following desktop:  This weird behavior appeared after I executed sudo apt-get update &amp;&amp; sudo apt-get upgrade and restarted my computer. Don't know why though.  To my Ubuntu I have tried the following (nothing seems to work so far)  Fix any broken packages:  sudo apt-get update sudo apt-get autoclean sudo apt-get clean sudo apt-get autoremove   Locate any broken packages and reinstall them:  sudo apt-get install debsums sudo apt-get clean sudo debsums_init sudo debsums -cs sudo apt-get install --reinstall $(sudo dpkg -S $(sudo debsums -c) | cut -d : -f 1 | sort -u)   Removing some compiz files:  rm -r ~/.cache/compizconfig-1 rm -r ~/.compiz   Purging of NVIDIA and installing NVIDIA-prime:  sudo apt-get install --reinstall ubuntu-desktop sudo apt-get install unity sudo apt-get purge nvidia* bumblebee* sudo apt-get install nvidia-prime sudo shutdown -r now   Compizconfig Settings Manager:  sudo apt-get install compizconfig-settings-manager  export DISPLAY=:0 ccsm  // Back to UI and enablement of Unity Plugin   Unity replace, which stopped at a while and did nothing afterwards  unity --replace   Some dconf reset  dconf reset -f /org/compiz/ unity --reset-icons &amp;disown   Actually dconf did not work and I got this error:  error: Cannot autolaunch D-Bus without X11 $DISPLAY   Can anybody help me on that?    This is my hardware (hope it helps in any way):   Intel® Core™ i7-3770 ASUS GTX660TI-DC2-OG-2GD5 () ASUS P8Z77-V LX Corsair DIMM 8 GB DDR3-1600 Kit Samsung 830series 2,5" 256 GB (Windows is installed here) Seagate ST31000524AS 1 TB (3/4 are reserved for files; 1/4 is for Ubuntu (16GB swap included))
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I've installed xubuntu-desktop and I want to get rid of all the ubuntu-desktop and Unity-related packages. But all the guides I've found are either outdated (psychocatz) or simply don't work (aptitude). What can I do to remove all the ubuntu-desktop packages?
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To uninstall a package (Ex: tor) installed from repository one should use   sudo apt-get remove tor   I did this but dpkg -l | grep tor shown something against the package. Next I try   sudo apt-get purge tor   But when I check dpkg -l | grep tor I got,   reza@reza-N43JM:/$ dpkg -l tor     Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name           Version        Description +++-==============-==============-============================================ un  tor            &lt;none&gt;         (no description available)   I think when I uninstall any package I should not get anything in dpkg -l list. Is it true? Or apt-get remove or purge does another work but not uninstall?
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I have just installed the final version of Ubuntu 20.04 LTS desktop system from ubuntu-20.04-desktop-amd64.iso. After two days of testing I completely do not like its graphical interface - the GNOME Shell. Even installation of GNOME Flashback does not help either.  So I want to completely remove the GNOME Shell with all its trails from my system without re-installation. Just want to start from scratch like it was approximately if I have installed Ubuntu from .
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I installed elementary OS and e17 on my Ubuntu 12.04 from ppas. After logout and login, right click on desktop is not working in gnome and unity but working in file manger.When I login into Pantheon session, I don't find an option to open Home folder and my login display manager theme is also changed.I want to get back to default Ubuntu login theme.Can i change the login theme with simple-lightdm manager. I dont want to mess up my system.Please hemp me how to fix these.
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when i use command sudo apt-get install git it's return below erorrs and it's return for any application to install below :   Setting up util-linux (2.25.2-4ubuntu3) ... update-alternatives: error: cannot stat file '/usr/bin/nodejs': Too many levels of symbolic links dpkg: error processing package util-linux (--configure):  subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing:  util-linux E: Sub-process /usr/bin/dpkg returned an error code (1)   update with sudo apt-get update not working and report below erorr  Fetched 7,032 kB in 5min 32s (21.2 kB/s)                                        W: Failed to fetch http://ppa.launchpad.net/paullo612/unityshell-rotated/ubuntu/dists/vivid/main/binary-amd64/Packages  404  Not Found  W: Failed to fetch http://ppa.launchpad.net/paullo612/unityshell-rotated/ubuntu/dists/vivid/main/binary-i386/Packages  404  Not Found  E: Some index files failed to download. They have been ignored, or old ones used instead.   how can fix it ?
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I run below command on ubuntu 16.4 :  sudo add-apt-repository ppa:noobslab/apps  of below question:    and get below error:  Traceback (most recent call last):   File "/usr/bin/add-apt-repository", line 11, in &lt;module&gt;     from softwareproperties.SoftwareProperties import SoftwareProperties, shortcut_handler   File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 27, in &lt;module&gt;     import apt_pkg ModuleNotFoundError: No module named 'apt_pkg' Error in sys.excepthook: Traceback (most recent call last):   File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook     from apport.fileutils import likely_packaged, get_recent_crashes   File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in &lt;module&gt;     from apport.report import Report   File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in &lt;module&gt;     import apport.fileutils   File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in &lt;module&gt;     from apport.packaging_impl import impl as packaging   File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 23, in &lt;module&gt;     import apt   File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in &lt;module&gt;     import apt_pkg ModuleNotFoundError: No module named 'apt_pkg'  Original exception was: Traceback (most recent call last):   File "/usr/bin/add-apt-repository", line 11, in &lt;module&gt;     from softwareproperties.SoftwareProperties import SoftwareProperties, shortcut_handler   File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 27, in &lt;module&gt;     import apt_pkg ModuleNotFoundError: No module named 'apt_pkg'   Thanks for help
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I have Google Chrome Version 70.0.3538.77 (Official Build) (64-bit).  Today, after running sudo apt update and sudo apt full-upgrade, I saw:  E: Repository 'http://dl.google.com/linux/chrome/deb stable Release' changed its 'Origin' value from 'Google, Inc.' to 'Google LLC' N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.   I looked at the man page for apt-secure but it's pretty technical and difficult, at least for me, to follow.  So how do I fix this issue?    Edit: for now, I've removed the existing Google Chrome ppa from Software Sources and then ran sudo apt update and sudo apt full-upgrade successfully with the following being installed/upgraded successfully:  The following NEW packages will be installed:   python3-netifaces The following packages will be upgraded:   netplan.io nplan ppp 3 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.