Need to make a computer ubuntu

Here, read this link for detailed steps:

http://www.psychocats.net/ubuntu/installing

HTH.

alright, first of all, may i know what is the specification of your brothers computer, the brand, the ram, the hard disk, sound card, graphic catd, blah3???

Go here and download it to your PC and burn it
to a CD.
Put it in his CD ROM and restart his PC,
But when it starts go to BIOS by repeatedly
clicking delete or F8 or F1 all depends on
his PC. And arrow over to boot.

Make the boot order CD ROM first. Then F10
and save changes.

Then it will go to language and pick your
language hit enter.

Now you want to check your cd you just burned
to see if there are any errors. If not then hit enter
again and do the language again and hit install.

When it get to where a window pops up and ask
you are you ready to install click forward and pick
language then your time zone then your keyboard
then when it get s to preparing partition click on
erase and use all of disk. Click forward put in
your info and click forward check your info see
if it's right, then hit install. Just do what it saying
from there.. Here is the download page for
Ubuntu 10.4 I would use 32 bit.

http://www.ubuntu.com/desktop/get-ubuntu/download

Let me know if you need more help...

Also please be sure to use a md5sum verified ubuntu desktop iso image before to burn it on a cd

Here some general note and howto:

The main ubuntu site is this: www.ubuntu.com and the download location is this
http://www.ubuntu.com/desktop/get-ubuntu/download

Prerequisites: https://help.ubuntu.com/community/Installation/SystemRequirements
Please also be sure to read the release notes: https://wiki.ubuntu.com/LucidLynx/ReleaseNotes

1) please download the 700 mb file http://www.ubuntu.com/desktop/get-ubuntu/download simply press on download button
To avoid download errors please prefer to download the desired ubuntu iso install cd image using the torrent protocol.
2) check the md5sum of downloaded file to be sure it have no error https://help.ubuntu.com/community/HowToMD5SUM

Only if the md5sum number match with this: http://releases.ubuntu.com/10.04/MD5SUMS go to the next steps otherwise
install a torrent client i suggest you http://deluge-torrent.org/ if you are using Windows and download the iso using a .torrent link from here:
http://releases.ubuntu.com/10.04/ubuntu-10.04-desktop-i386.iso.torrent

3) burn the iso image onto a cd, to do it install and use http://infrarecorder.org/?page_id=5
4) insert the self made install cd into your pc cdrom drive and reboot your pc. You must not see Windows starting and you can try Ubuntu from cdrom and then install it

If you have trouble with installation (the system freeze or you can't complete it) be sure to read the above suggestions, then:

1.a ) Please boot entirely (you must not see windows starting) from Ubuntu live install cd and when the system start to boot from cd you will see two bottom screen icons (keyboard and man inside circle ) please press space (choose your desired language) then a screen textual center menu will appear to you with this items in it:

Try Ubuntu without installing
Install Ubuntu
Check disc for defects
Test memory
Boot from first hard disk

Please select "Check disc for defects" and press enter to test if your cd-driver can read in a good way the live install cd... or if the install cd have some defective file in it.
Then please also perform a Test memory to be sure your pc RAM memory have not any issue

http://www.ubuntugeek.com/how-to-fix-ubuntu-10-04-lts-lucid-blank-screen-at-startup.html

Thanks arochester, that solved my question.