Ubuntu installs by default with the Gnome Desktop and other memory-intensive applications. So if you do not have a fast and powerful machine (Pentium 4 and 512 MB of RAM) your system will be quite slow. The following document explains the steps, how to install Ubuntu and a GUI on a low memory system, so that you can use it as a Workstation for your daily work. It is aimed to the average SOHO-user (Small Office/Home Office).
1 The Basesystem
Get Ubuntu CD-ROM see http://www.ubuntulinux.org/
After inserting the CD-ROM into the drive, boot and when asked to press Enter, type custom before. (Not linux custom!)
The result will be a minimal-system with less than 300 MB on the HD and only a textprompt (no GUI).
2 Postinstall the GUI
I did it in the following order, but probably the order is not important:
$ sudo su - This puts you into a root-shell (#), so no more sudo is necesary.
# vi /etc/apt/sources.list
(If you are not familiar with vi you can use nano or any other texteditor instead.)
Enable the universe-repository by removing the Hashmarks (=# (2 times))
# apt-get update
# apt-get install icewm
# apt-get install xserver-xfree86
# apt-get install x-window-system-core
# apt-get install xdm
# apt-get install numlockx
# apt-get install xterm
The result is a system with X and iceWM as windowmanager. You log in as user and on the prompt:
starts the GUI. (After the first reboot, xdm autostarts and puts you directly into the GUI-mode)
So far this system needs 468 MB on your harddrive.
3 Basic Applications
We consider a Mailreader, Webbrowser, PDF-Reader and Officesuite as basic:
# apt-get install acroread
This adds 26 MB to the harddrive (compared to 3,2 MB of gPDF, but gPDF laks crucial features like search and copy of text.)
We include Flashplayer and Acrobat-Plugin for optimal compatibility with todays WWW. (The plugins only need 2,5 MB)
# apt-get install mozilla flashplayer-mozilla acroread-plugin
Fills up the harddrive to 555MB
At the date of writing this Howto you have two options. Choose one of them (either-or, not both!). This will probably change constantly, as OpenOffice envolves - but the principle will stay the same (just the versions will change).
Either: Install OpenOffice 1.1.2 from apt-repository
# apt-get install openoffice.org
This installs Openoffice 1.1.2
Or: Install OpenOffice 1.1.3 from OpenOffice.org:
I installed OpenOffice 1.1.3 from the tar, provided by www.openoffice.org. After untaring the tree I cd into the tree and type:
3.3 Final thoughts
Finally we have now 770 MB for the bare system on the harddrive, so if we consider to have 128 MB minimum for the swap, we need harddrives between 1 and 1,5 GB for such Ubuntu-Desktop
[Articulo tomado de: http://www.binonabiso.com/en/Ubuntu-miniRAM-HOWTO.html]