Now that we have Baloo in KDE I guess is safe to remove the Akonadi and Nepomuk, right?

I have upgraded my Kubuntu 13.10 to 14.04 without any problem. In the upgrade process, the system removed some packages but not the packages related with akonadi and nepomuk:

libnepomuk4                                     install
libnepomukcleaner4                              install
libnepomukcore4abi1                             install
libnepomukquery4a                               install
libnepomukutils4                                install
libnepomukwidgets4                              install
nepomuk-core-data                               install
nepomuk-core-runtime                            install
akonadi-backend-mysql                           install
akonadi-server                                  install
libakonadi-calendar4                            install
libakonadi-contact4                             install
libakonadi-kabc4                                install
libakonadi-kcal4                                install
libakonadi-kde4                                 install
libakonadi-kmime4                               install
libakonadi-notes4                               install
libakonadi-socialutils4                         install
libakonadiprotocolinternals1                    install

Is it safe to remove this packages?, do I need to do something more? My intention is to remove completely Akonadi and Nepomuk as they are no longer necessary.

2 Answers 2



At here, new 14.04 installation with the KDE desktop.

Running a simulation - what will happen if I remove the 'libnepomuk4':

apt-get purge -s libnepomuk4

The result:

The following packages will be REMOVED:

adobe-flash-properties-kde* apport-kde* apturl-kde* ark* audiocd-kio* baloo* bluedevil* dolphin* dolphin+* ffmpegthumbs* filelight* freespacenotifier*


sweeper* systemsettings* usb-creator-kde* user-manager*

The following NEW packages will be installed:

at-spi2-core libatk-bridge2.0-0 libatspi2.0-0 libgtk-3-0 libgtk-3-bin
libgtk-3-common libwayland-cursor0 policykit-1-gnome xterm

0 upgraded, 9 newly installed, 211 to remove and 3 not upgraded.

Full output: http://pastebin.com/wHF82M9P

Well - Maybe not...


Akonadi: http://userbase.kde.org/Akonadi

The Akonadi framework is responsible for providing applications with a centralized database to store, index and retrieve the user's personal information. This includes the user's emails, contacts, calendars, events, journals, alarms, notes, etc...

Nepomuk & Baloo

The Nepomuk was replaced with the Baloo - http://community.kde.org/Baloo


I had working nepomuk in Kubuntu for a long time. I've upgraded Kubuntu to 14.04 and then 14.10, and FWIW I no longer have any nepomuk packages installed, only baloo. So one of those upgrades removed nepomuk for me. I didn't try to remove akonadi packages; Akonadi isn't causing any problems beyond the AkonadiTray widget that never does anything.

The Kubuntu upgrade did not delete the obsolete index files in ~/.kde/share/apps/nepomuk which will recover 100 MBs of space, maybe it should (I filed [launchpad bug 1402463]. I updated https://userbase.kde.org/Nepomuk to mention it's safe to remove these old files, I'm not sure where else to say it.

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