Open a terminal and type:

sudo apt-add-repository ppa:kubuntu-ppa/experimental
sudo apt-get update

If you use Kubuntu, type

sudo apt-get dist-upgrade

If you use Ubuntu, type

sudo apt-get install kubuntu-desktop

Well, being direct, Quassel is an excellent IRC client for KDE and I'm a user :)

It do all that others IRC clients do, like:

• Connect to multiple channels and servers.
• Colorations of nicks, your messages and messages to you.
• Fallback nicks when the master fail.

He also has something that I love in certain programs: separation of core and client.

What does that mean?

Basically, the program is divided into two, in the case of Quassel, the Core is who connects and does everything in the statement of the IRC. The Client only connects to the core and shows things to the User.

What is the advantage?

You can go online even staying offline :). When I get disconnected from the Core, it just put my nickname away, but stays connected to IRC, after all, who was disconnected is the Client(I), not the Core (which is on an external server). When I connect again it shows me everything like I never left. I can see everything that happened without needs a bot to log.

How to Install?

He is also the repository of most distributions.

• Arch Linux: pacman -S quassel
• Ubuntu or Kubuntu:
  • StandAlone(without separation of Core/Client): apt-get install quassel
  • Core: apt-get install quassel-core
  • Client: apt-get install quassel-client
• Gentoo: emerge net-irc/quassel

You can also run it on Mac OS X and Windows.

More details on Download Page.

How do I see a lot of people coming looking for How to install KDE 4.4 in Arch Linux, or How to install KDE 4.4 in Kubuntu so I'm posting this, it will be quick ;)

The currently version is KDE SC 4.4 Beta 2 RC 1 RC 2 RC 3, not advisable if you want stability.

To install on Arch Linux with extra repository:

Just run a

pacman -Sy kde

or if you already have kde installed

pacman -Syu

To install on Arch Linux with KDEmod repository.

Add to your /etc/pacman.conf this:

[kdemod-testing]
Include = /etc/pacman.d/kdemodmirrorlist

* Add it before other KDEMod repositories if you have them

If you already use KDEmod, can change the path to your own file but if you specify a server to your repositories I strongly recommend that you use in one file, so if one fails it will use another.

If this is your first time you put the KDEmod or want to create the file, place in /etc/pacman.d/kdemodmirrorlist the following content:

Server = http://chakra.virtualdisaster.net/kdemod/$repo/i686
Server = http://archlinux.puzzle.ch/kdemod/$repo/i686
Server = http://mirror.rit.edu/kdemod/$repo/i686
Server = http://kdemod.iskrembilen.com/repo/$repo/i686
Server = http://kdemod.bednarek.org.pl/$repo/i686
Server = http://server.elsistech.com/archlinux/kdemod/$repo/i686
Server = http://chakra-project.org/repo/$repo/i686

*Replace i686 with x86_64 if you use a 64 bits system

If yu use KDE from the [extra](official) repository, first you need to remove it with pacman -Rd kde.

If you already use KDEMod, then update with pacman -Syu.

If you not have any KDE installed, then install with pacman -S kdemod.

To Install on Kubuntu or Ubuntu we'll use the PPA of Kubuntu:

First we'll add the PPA of Kubuntu with this command:

sudo add-apt-repository ppa:kubuntu-ppa

Then run sudo apt-get update. Now, if you already use Kubuntu run sudo apt-get dist-uprade, or if you use Ubuntu run sudo apt-get install kubuntu-desktop.

UPDATE: KDEMod already got KDE SC 4.4 RC 1 available. unfortunately, it's still a work in progress for the Kubuntu team (that's still on KDE SC 4.4 Beta 2)

UPDATE: Kubuntu PPA already got KDE SC 4.4 RC 1.

UPDATE: KDEMod and Kubuntu PPA already got KDE SC 4.4 RC 2 RC 3.

UPDATE: KDEMod already got final version.

UPDATE: Kubuntu PPA too.

I'll describe here how you can easily install Kubuntu in your PC.

First, download ISO here, unfortunately only have DVD version.

Burn it, and boot. It will ask about language.

Language Selection

After selected the language Portugues do Brasil(Portuguese of Brazil, my default language), press enter. Now select Install Kubuntu and press enter again.

Pre-boot Menu

It may take a while to load, it all depends on your computer and the media used.

At the end of boot you will be asked (again) on the language. What you chose is already chosen by default, press Next.

Post-boot language selection

He will try to get the current time, just a little patience.

Getting time

After getting it, you will be asked about the time zone, in my case, Porto Velho/Rondônia

Selecting time zone

Next will be the turn of the keyboard layout, because I'm using the language Portuguese of Brazil it defines the default brazilian layout(abnt2) by default

Keyboard layout

Finally the most delicate, in that case let him use the whole disk, if you need to do different then search on google how to do this

Partitioning

Now it will ask the User Information, fill  name and it will automatically put your first name as login (you can change it), put your password, repeat it, put a name to your computer and in bottom, select the options you want, as in my computer is used only a User, I chose Automatically sign.

User info

If you use a weak password like me, will be shown a window warning about it. It is possible to ignore it, but it is advisable to place a stronger password

Week pass warn

At this point you are at the last step that requires human administration. With all the information that will be done, you should look and see if everything is right and press Install, otherwise press Back, and fix it.

Summary of tasks

The first thing he will do is fix the partitioning, this point, you can go for a ride:)

Formatting

After partitioning it will calculate which files should be copied.

Calculating files

In 80% it will configure apt and download the translations, if you are connected to the Internet. If you prefer you can cancel this part.

Downloading translations

Finally the end, time to restart and configure :)

End of Installation