My iBook G4 has OS X 10.4.11, it needs 10.5.8 or higher to run the external hard drive I recently purchased. I was not aware of this until many unsuccessful attempts to get the thing to work and I read the fine print on the box. The guy at Staples said to just hook it up and there would be "Prompts" to get it going. I now believe he knew about as much as I did about this product! Really need the storage space for about 4000 photos, music, etc. Please advise.
closed as not a real question by Jason Salaz, Nathan Greenstein♦ Nov 11 '11 at 17:45
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If you want to upgrade your iBook G4 to 10.5, then you need a install CD. Obviously it is no longer sold by Apple, therefore you need to find someone in your entourage who has a disk, or maybe look on Craig's list for someone who might have one to sell or give away.
Then upgrading to 10.5.8 will simply be a matter of running software update.
The tricky part will be finding a disk, or an image of a disk that you could burn onto a CD/DVD.
And just to be sure you are aware of this: 10.5.8 will be the most recent OS you will be able to install on your iBook, since Snow Leopard and later is Intel only. :-)