Troubleshooting
If Wicd fails to connect after you install it, make sure that the only entry in your /etc/network/interfaces file is
auto lo
iface lo inet loopback
You can change the contents of this file by pressing alt + f2, then typing gksudo gedit /etc/network/interfaces if you are using Gnome, or replace gedit with kate if you are using KDE. This will allow you to view and edit the /etc/network/interfaces.You can ignore lines that start with #.
Installing Wicd in Ubuntu
Installing Wicd in Ubuntu is very simple. You just have to add the Wicd repository to the Ubuntu package manager. To open the package manager in Gnome, go to Administration > Synaptic Package Manager. When it appears, go to Settings > Repositories > Third Party Software > Add..., and enter the following line:
deb http://apt.wicd.net hardy extras
where gutsy is your version of Ubuntu in lowercase (dapper, edgy, feisty, gutsy, hardy, intrepid).
You'll also need to add the key used for signing Wicd by running the following command in a terminal:
wget -q http://apt.wicd.net/wicd.gpg -O- | sudo apt-key add -
Now, click Reload, and wait while the package lists are downloaded. Now, search for "Wicd", and right click on it.
Select Install, then press Apply, and Wicd will automatically be downloaded and installed for you.
This will also keep you automatically up to date with the latest and greatest version of Wicd.
Please note that this will remove network-manager, which is the default GNOME network manager and may cause loss of network connection temporarily.
Installing Wicd in Debian
You can also use the apt repository. Just add the following line to your /etc/apt/sources.list
deb http://apt.wicd.net lenny extras
where lenny is your version of Debian in lowercase (lenny, sid).
You'll also need to add the key used for signing Wicd by running the following command in a terminal:
wget -q http://apt.wicd.net/wicd.gpg -O- | sudo apt-key add -
Now you can apt-get update and apt-get install wicd to install Wicd. If you are using Lenny and you use Madwifi, make sure to use wext in Wicd.
Installing Wicd in Arch Linux
Wicd is in the extra repository, so all that needs to be done is:
pacman -Sy wicd
It is recommended to take a look at the Arch Wiki page on Wicd for other notes.
Installing Wicd in Fedora
Thanks to an anonymous person(s), the wiki has instructions on installing Wicd on Fedora 7.
Installing Wicd in Slackware
Thanks to the hard work of Robby Workman, Wicd packages for Slackware can be obtained from his website.
Installing Wicd in Gentoo
All you need to do is emerge Wicd:
emerge -av wicd
Other Distros
You can visit the Release page to get the .tar.gz source.