The following discussion installs the tetex Latex distribution with Texmaker Latex editor and the beamer class.

1. Launch Console. (Shorcut Ctrl+Alt+T in Easy Mode)

2. Enter “sudo bash”. This gives us Admin privileges.

3. Enter “nano /etc/apt/sources.list” and

4. Add the following Xandros repositories after the default two lines of the list of sources:

deb http://download.tuxfamily.org/eeepcrepos p701 main etch
deb http://xnv4.xandros.com/xs2.0/upkg-srv2 etch main contrib non-free
deb http://dccamirror.xandros.com/dccri/ dccri-3.0 main
deb http://www.geekconnection.org/ xandros4 main

* Note: The spaces are really included.

5. Save by Ctrl+O. Exit/Return to main command line by Ctrl+X.

6. Enter “apt-get update”. This updates the list of packages from the repositories.

* Note: This requires Internet connection. And so will all other apt-get processes.

* Note2: In the event that the update process will not be completed, probably due to poor connection, we may update the repositories one-by-one. We do this by slightly modifying the sources.list file every time, leaving only one line by commenting out the rest with '#', and then applying “apt-get update” for that. An example:

#deb http://update.eeepc.asus.com/p701 p701 main
#deb http://update.eeepc.asus.com/en p701 main
deb http://download.tuxfamily.org/eeepcrepos p701 main etch
#deb http://xnv4.xandros.com/xs2.0/upkg-srv2 etch main contrib non-free
#deb http://dccamirror.xandros.com/dccri/ dccri-3.0 main
#deb http://www.geekconnection.org/ xandros4 main

* Note3: We may get the error “NO_PUBKEY”. To get the key for download.tuxfamily.org, enter

"wget http://download.tuxfamily.org/eeepcrepos/key.asc"

then enter “apt-key add key.asc”. This is actually optional. Also, for xnv4.xandros.com, this does not work.

7. Enter “apt-get install tetex-base”. Key in 'y' when prompted.

8. Enter “apt-get install tetex-bin”. Same.

9. If we need to use the beamer class/package, enter “apt-get install latex-beamer”. Otherwise, we're done.

10. Another optional package is Texmaker, a free Latex editor. Similarly, we install this by entering “apt-get install texmaker”. Texmaker can be launched from Console by simply entering “texmaker”.

References:
http://wiki.eeeuser.com/addingxandrosrepos
http://packages.debian.org/etch/tetex-base
http://www.xm1math.net/texmaker/