I'm utterly shocked you didn't quite get a RTFM!!
I'll lay it out quick for you, despite it being ALL OVER the web:
[list]
[*]download the 1.32 [or newer] .run file for linux
[*]type 'su' and enter root passwd
[*]type 'sh linuxq3a-1.32-pointrelease.x86.run' (or whatever it's called) - if it works, do not start the game yet!! Exit!
[*]that *should* have created /usr/local/games/quake3 including baseq3 within it - if it didn't work, create those with mkdir and rerun step 3
[*]type 'cd /usr/local/games/quake3/baseq3'
[*]If you have Q3A installed in windows already: type 'ln -s /mnt/windows/Program Files/Quake III Arena/baseq3/* ./' supposing that's where it is.
[*]If you don't already have it installed, insert the CD and type 'cp /mnt/cdrom/baseq3/pak0.pak ./' supposing that's where it is - in fact, copy ANY pak files on the disk that the .run file didn't put there for you.
[*]type 'exit' until you are no longer root
[*]Hit the desktop icon or type 'quake3' and enter your cd key when asked, setup your player, etc. Enjoy![list]
CODE
[static@hal downloads]$ ls
linuxq3a-1.32-pointrelease.x86.run
[static@hal downloads]$ su
Enter UNIX password: *******
[root@hal downloads]# sh linuxq3a-1.32-pointrelease.x86.run
Installing.................................................... (you get your little installation GUI)
[root@hal downloads]# cd /usr/local/games/quake3/baseq3
[root@hal baseq3]# ln -s /mnt/windows/Program Files/Quake III Arena/baseq3/* ./
Cannot link to pak2.pak; file exists
" " pak3.pak " "
" " pak4.pak " "
[root@hal baseq3]# exit
There are stopped jobs
[root@hal baseq3]# exit
[static@hal downloads]$ quake3