Booting the installer

For more information on where to get CDs, see the section called “Official Ubuntu CD-ROMs”.

Some installation methods require other images than CD images. the section called “Where to Find Installation Images” explains how to find images on Ubuntu mirrors.

The subsections below will give the details about which images you should get for each possible means of installation.


Download the image for your architecture and burn it to a CD. To boot a PowerMac from CD, press the c key while booting. See the section called “Booting from a CD-ROM” for other ways to boot from CD.

USB memory stick

It's also possible to install from removable USB storage devices. For example a USB keychain can make a handy Ubuntu install medium that you can take with you anywhere.

The easiest way to prepare your USB memory stick is to download netboot/boot.img.gz, and use gunzip to extract the 8 MB image from that file. Write this image directly to your memory stick, which must be at least 8 MB in size. Of course this will destroy anything already on the memory stick.

There are other, more flexible ways to set up a memory stick to use the Ubuntu installer. For details, see the section called “Preparing Files for USB Memory Stick Booting”.

Booting Macintosh systems from USB storage devices involves manual use of Open Firmware. For directions, see the section called “Booting from USB memory stick”.

Booting from network

It's also possible to boot the Ubuntu installer completely from the net. The various methods to netboot depend on your architecture and netboot setup. The files in netboot/ can be used to netboot the Ubuntu installer.