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How to make a bootable usb mac ibook g4 how to#
How to make a bootable usb mac ibook g4 Pc#

Note: As with all hints that have to do with Open Firmware, proceed at your own risk! I have not experienced a problem and I don't see how this hint could render your Mac useless, since the default can always be recovered by resetting the SMU. Without further delay, here's the process to follow.

iMac G5 w/iSight (thanks to the eager user who emailed me).

Machines that I have tested this hint on and made it work are: Thankfully, somewhere about the time the iMac G5 with the ambient light sensor (ALS) was released, Apple tweaked their Open Firmware, which allowed us to boot PowerPC Macs from USB2 drives. MorphOS will now boot in the installation/update mode! That is it :) Just make sure you do not unplug the stick before you are done updating.First off, I have tried and tried again over the years to boot various PowerPC Macs via a USB2 disk. Mind the spaces, slash, backslash, comma, dots and the colon! To boot MorphOS, type boot bi umsd0:morphos.iso and press enter. To find out where the stick was mounted, type dev usb0 ls continue for usb1, 2, etc until you find the USB stick.Īssuming you get the result as above, the path to the boot.img file will be That is a colon, comma and a backslash at the end, make sure you get these right! If you do not know where these keys are on your laptop keyboard, check the FAQ below. The USB stick will show up in one of the usb0/1/2/. If the command fails, try devaliases If one of these fails, try the other one - it may depend on the OpenFirmware version. properties (mind the spaces, slash and the dot! dev(space)(slash)aliases(space)(dot)properties). To list the available device aliases type dev /aliases.

In case your (usually older) OpenFirmware does not support the "ud" alias, you will need to find the usb device in the OF tree. This will in many cases get MorphOS booting. Type: boot ud:,\boot.img bi umsd0:morphos.iso Paths to built-in USB ports are available in shorter form via aliases.

How to make a bootable usb mac ibook g4 Pc#

The Command key would be the key with an Apple logo or a "cmd" label on a Mac keyboard, and the Windows key on a typical PC keyboard. Hold the O, F, Alt and Command keys together until the OpenFirmware prompt appears. This guide does not cover booting from other USB ports. While these will generally work, you will need a LOT more typing and will likely fail at booting MorphOS. Do NOT use USB hubs or ports from PCI USB cards, etc. Make sure not to plug more than ONE USB stick/hdd at once. Plug the USB stick into one of the built-in USB ports. Open Ambient´s menu and open Format Disk from the Utilities menu. Now save the new layout and close HDConfig. OpenFirmware will not be able to read the USB stick otherwise! It will NOT work if you add more, if in doubt, try the stick under Windows - it will not work.Ĭlick on the new partition and change the First Sector to '2' and Filesystem to FAT32o. If you are running MorphOS, run HDConfig (found in the Tools directory), select the USB stick and make sure its partition table format is set to MBR.Ĭreate a single partition by clicking on the "free" area.

How to make a bootable usb mac ibook g4 how to#

There is a short guide on how to do that under WIndows in the FAQ below. NOTE: this guide covers formatting the stick under MorphOS. Mounts under Windows, right click the drive and select Format to see the current filesystem), you may jump to step 3 now. If you already have a FAT32 formatted USB stick that contains a single partition (to verify, see if it