How to install Docky on Ubuntu 14.04 Trusty Tahr

After installing Ubuntu 14.04 on my computer, now I want to show you how to install Docky on Ubuntu 14.04 Trusty Tahr. Docky is  a set of application launcher which looks like Mac OS X.

A. Add Docky PPA repository to Ubuntu 14.04

Open Terminal and edit sources.list file.

sudo nano /etc/apt/sources.list

Paste these lines to the bottom of the sources.list file

deb trusty main
deb-src trusty main

B. Update Ubuntu

sudo apt-get update

C. Install Docky

sudo apt-get install docky

Once finished, you can start docky using command:



Configure Docky to start when every time you log in. You may need to log out and log in back to see Docky displayed on the bottom of your screen.



  1. After sudo apt-get update, I get an error message saying

    W: GPG error: trusty Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 608BF7B93528AE20

    Also, when I run, sudo apt-get install docky, it prompts,

    WARNING: The following packages cannot be authenticated!
    Install these packages without verification? [y/N]

    Please look into this, and provide a solution.

    Thank you.

    • Install these packages without verification? [y/N]
      Simply type y and press Enter. The installation should begin after that.

  2. ubuntu 14.04 with gdm

    [Info 11:59:40.633] Docky version: 2.2.1 bzr docky r1855 ppa
    [Info 11:59:40.641] Kernel version:
    [Info 11:59:40.643] CLR version: 4.0.30319.17020
    [Info 11:59:40.666] [Gtk] Failed to load module “canberra-gtk-module”
    [Fatal 11:59:40.798] DBus could not be found and is required by Docky. Exiting.

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