This brief tutorial is going to show you how to install Adobe Flash Player, Acrobat Reader and Adobe Air in Ubuntu 12.04 (Precise Pangolin). Having these three programs installed in Ubuntu makes your experience with Ubuntu better. You can watch flash videos, interact with rich applications online and open PDF documents easily. This tutorial is going to be short and easy, and without wasting anymore of your time let’s get going.

Objectives:

Install Adobe Flash / Reader / and Air in Ubuntu 12.04
Enjoy!

To get started, press Ctrl – Alt – T on your keyboard to open Terminal. When Terminal opens, run the commands below to enable Canonical Partner Repository.

sudo apt-add-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"

Next, run the commands below to update your system and install Adobe Flash Player and Adobe Reader.

sudo apt-get update && sudo apt-get install flashplugin-installer acroread

Next, run the commands below to download Adobe Air executable.

wget http://airdownload.adobe.com/air/lin/download/latest/AdobeAIRInstaller.bin

Then run the commands below to change the permission on the file so that it’s executable.

sudo chmod +x AdobeAIRInstaller.bin

Next, run the commands below to install Adobe Air.

sudo ./AdobeAIRInstaller.bin

If everything works, all should be installed. If you run into problems with adobe Air about missing gnome-keyring or KDE Wallet, run the commands below to fix it, then re-run the air installer.

sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0 /usr/lib/libgnome-keyring.so.0
sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0.2.0 /usr/lib/libgnome-keyring.so.0.2.0

For 64-bit systems, run copy and past the commands below

sudo ln -s /usr/lib/x86_64-linux-gnu/libgnome-keyring.so.0 /usr/lib/libgnome-keyring.so.0
sudo ln -s /usr/lib/x86_64-linux-gnu/libgnome-keyring.so.0.2.0 /usr/lib/libgnome-keyring.so.0.2.0

Enjoy!

sumber : http://www.liberiangeek.net/2012/04/install-adobe-flash-reader-air-in-ubuntu-12-04-precise-pangolin/