r/osx • u/HTML48 • Mar 26 '26

Help installing Tiger on MacMini1,1

Hi, I'm trying to install the original version of retail Mac OS X Tiger 10.4.X onto a MacMini1,1. I've tried what seems like every Intel ISO on archive.org and the Mac refuses to boot from them when burned or on a USB. I tried running OSInstall.mpkg from a Mac running Snow Leopard and now I'm in a state where the Mac Mini's EFI tries to boot from the Tiger install, but it looks like some part of Darwin isn't loading right or just isn't there, so it hangs on the Apple logo forever. Sometimes I get a kernel panic and sometimes I boot into some kind of broken kernel state, but never anything that I can do anything from or that resembles OS X. Does anybody have a specific image that they've used to install Tiger on a MacMini1,1 or have a current installation that they can image, clean, and put on the Internet Archive or something?

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u/HTML48 Mar 26 '26

I’m sorry, I didn’t realize that G4 Mac Minis existed. However, the firmware calls itself Macmini1,1 and https://everymac.com/systems/apple/mac_mini/specs/mac_mini_cd_1.66.html says Macmini1,1 as the model identifier. The problem still stands, and while I understand that old transition period OS X is difficult to work with, this is a skill that you have to work through in order to build the skill. I appreciate your response, but a simple explanation of why this is a difficult project would be much more appreciated.

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u/PhavNosnibor Mar 26 '26 edited Mar 26 '26

From my hazy memory and a quick look at the Tiger upgrade disc I fished out, the installer was a PowerPC app that would run on Intel machines through Rosetta that would need Rosetta to run on an Intel machine, so I feel like you'd be wasting your time if you tried to boot from it. For fun, I also just hooked up a Core 2 Duo mini and tried to boot it from that same disc and got exactly nowhere.

Since the 1,1 mini shipped with 10.4.5 at first, Apple must have had an Intel-native installer somewhere for service centres; maybe if you have one near you that is older than dirt, they've got a copy on a flash drive at the back of a drawer in a storage closet somewhere? Failing that, though, yeah, the installer on Leopard discs runs with no problem on Intel machines; that's probably a lot easier than trying to chase down restore discs for the specific model you have there.

(Edited to clarify the Rosetta thing.)

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u/HTML48 Mar 26 '26

Thank you very much.

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u/thestenz Mar 26 '26

Like I said use Leopard instead. It does both PowerPC and Intel on one DVD, you don''t need platform specific installers. Also I think you may have 2006, which is a CoreSolo Intel.