1. GET UBUNTU: Download the most recent version of an “Alternate Install CD” from here:

http://cdimage.ubuntu.com/ports/releases/

2. Burn the new ISO disk image to CD using Disk Utility.app. *Do not mount and burn in the Finder.

3. PREPARE THE HDD: Use Disk Utility.app to decrease the size of your existing Mac OS X partition(s) until there are at least 10 GB free on the hard drive. *Do not create a partition in this empty space as the Ubuntu installer will create the necessary partitions there.

4. If you surf wirelessly, connect your PowerBook to the web via ethernet now.

5. REBOOT & INSTALL: With the Ubuntu Install CD in the drive, press ALT while rebooting to select the CD-ROM, as holding “C” during reboot may not work. You may need to enter an admin password.

6. If your Mac fails to boot from the install disc, reboot the Mac while pressing COMMAND-OPTION-O-F to boot to the Open Firmware prompt.
*Make sure the following path matches that of yaboot on the install disc. At the prompt, enter:

boot cd:,\install\yaboot

7. After the reboot, type install at the prompt. Follow onscreen instructions. Enter information as required.

8. CD-ROM FIX: When the installer attempts to MOUNT & DETECT CD-ROM, your CD-ROM may not be detected.
Press ALT+F2 to open another shell, and at the prompt type:

modprobe ide-scsi

9. Switch back to the installation shell and choose to MOUNT & DETECT CD-ROM again, and the CD-ROM drive will spin-up. Carry on.

10. Follow further onscreen instructions. Enter further information as required.

11. AIRPORT WIRELESS: When the installer attempts to CONFIGURE DHCP, it will not recognize an Airport Wireless configuration. After you boot into Ubuntu, you can download the Broadcom driver to enable Airport WiFi.

12. Follow instructions. Enter information. Go brew a tea, smoke a cigarette, or pet the dog for bit while the OS is being installed.

13. When the installation is complete, the CD will eject, and you will be prompted to reboot.

14. After rebooting, to boot into Linux at the “Stage 1” prompt type (lower case “L”):

l

To boot into Mac OS X, you type ‘x’… but finish the next few steps before you do anything else.

15. VIDEO FIX: To avoid booting into darkness, at the boot prompt type:

Linux video=ofonly nosplash

Enter your username and password at the login panel when it appears.

16. As soon as the OS loads, open the Terminal application from the Ubuntu Menu. You will edit the bootloader (yaboot.conf) file so that you won’t have to perform the VIDEO FIX step every time you boot Ubuntu.

Backup yaboot.conf before you edit it. At the terminal prompt, type:

sudo cp /etc/yaboot.conf/etc/yaboot.conf.bak

*This puts a copy of it in the same directory. The file can now be safely edited.

17. To open yaboot.conf in the editor, type:

sudo nano /etc/yaboot.conf

18. Find the first occurrence of the string:

append=”quiet splash”

…and replace with this:

append=”video=ofonly nosplash”

If you don’t find it within in the first block of text, insert it after the string:

defaultos=

or

initr=

19. SUCCESS: Save the file. Exit the terminal. Enjoy Ubuntu.

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El botón derecho pulsando f12

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también os dejo una guía en formato pdf para configurar el airport:

airport

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Y en cuanto al sonido:

Enable sound with my Powerbook

The Feisty install fails to add the proper sound module to /etc/modules. To fix this,

sudo nano /etc/modules

and the at the bottom add snd-powermac to the list. Ctrl-X and ‘Y’ to save. Reboot, and sound will work.

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PARA HACER QUE FUNCIONE LA TECLA ARROBA (AT) @ EN EL POWERBOOK G4:

“Equipo -> Preferencias del Escritorio -> Teclado

En la pestaña (Distribuciones) (LAYOUTS)seleccionar como modelo de teclado “Generic 105-Key (Intl) PC” y seleccionar como distribución “Spanish”.

Por último, en el boton (others options), en “Third Level Choosers”, añadir “Press any of Win-Keys to choose 3rd level”.

Así podremos utilizar la tecla “Apple” como si fuera un Alt-Graf