Once you have a CD image burned, boot the computer with the CD by putting the CD in the drive when the computer is first powered on. If your computer is configured correctly, and is also able to boot from an El Torito CD, then you'll see the PortaBoom boot splash screen below shortly.
If the machine doesn't boot the PortaBoom image from the CD, please check the troubleshooting section of the PortaBoom FAQ for possible reasons why. The floppy boot process below can be used if your machine doesn't support El Torito bootable CD ROMs.
If for whatever reason you can't boot PortaBoom from the CD drive, this option is for you. What you will need to do is to write a copy of the floppy from an image file to an actual floppy disk. In Unix, you'll use the dd, and in DOS/Windows, you'll be using rawrite or some derivitive of rawrite.
For Unix: the dd command is issued as follows (assuming you are using the first floppy drive to write to):
dd if=portabm.img of=/dev/fd0 bs=512
For DOS/Windows: the rawrite command is issued as follows (assuming you are using the first floppy drive to write to):
rawrite portabm.img a:
At the PortaBoom boot screen, you have the option to select from one of 3 graphics modes:
Press the number '1' on the keyboard for a screensize of 640 pixels wide by 480 pixels tall, 16 million colors
Press the number '2' on the keyboard for a screensize of 800 pixels wide by 600 pixels tall, 16 million colors
Press the number '3' on the keyboard for a screensize of 1024 pixels wide by 768 pixels tall, 16 million colors
There's a fourth option (the number '0' on the keyboard) that is used for debugging.
After a few minutes, if everything worked correctly, you'll see the PortaBoom splash screen. Using the mouse, left-click (click the left mouse button once) on the PortaBoom splash screen logo, and you'll see the PortaBoom Control Center (PCC for short). From here, you can set up your Network Card and IP Address for network games, and your Sound Card so you can hear things too. If you are using the network, you'll be able to use file shares from Windows and Unix computers in the Share Setup screen, once you have networking enabled. In the Sound Card Setup screen, you can also set the volume of your sound card, and test that your sound card works.