Software > Operating Systems and Porting

Possibility to install Amiga OS 4

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AbstractConcept:

--- Quote from: ClassicHasClass on March 09, 2020, 11:16:39 pm ---It doesn't know how to deal with the architecture; it's written only for PowerPC-based Amigas, which despite being the same family of CPU, have very different system facilities.

--- End quote ---

Are you specifically referring to the firmware? At a glance, AmigaOS seems to call its firmware Kickstart, but according to Wikipedia since version 4 (when Amiga switched to PowerPC) it is run off of the disk rather than ROM. While looking around, I came across an AmigaOS4.1 boot process blog post, which would suggest that AmigaOS 4's Kickstart is in fact more of a bootloader, and a portable one at that, seeing as it has already been made to run on top of IEEE 1275-1994 (Open Firmware), CFE, and UBoot.

Maybe porting AmigaOS 4.1's Kickstart to OpenPOWER firmware really is not that unfathomable...

MauryG5:
At this point I also think it is a problem related to the firmware because in themselves the CPUs are of the same family and therefore on Power 9 we have all the Power and PowerPC instructions and therefore also in my opinion with a firmware written on purpose, it is possible to run Amiga OS4 ... If anyone had the opportunity to write it it would be a nice thing ...

MPC7500:

--- Quote from: mparnaudeau on March 12, 2020, 05:50:48 am ---That would be great to have AmigaOS running on Blackbird! At the moment, I think that's only possible under emulation ... with qemu since the support of the Sam460 config seems to be good enough. I would like to try ... when I will have a Blackbird (not ordered yet and I don't know when it will happen).

--- End quote ---

Also AROS and MorphOS should work. They also supports 460ex boards.

MauryG5:
Yes good, these two mentioned by you also work, I had tried to download Morph OS thinking that maybe it had a more compatible firmware with Power but nothing even works directly. It is to be seen how it works in case of emulation, I have never been in favor of emulators, they usually do not have the same performance as when it is directed ... Then I can be wrong, maybe for Amiga OS there is no problem because is slimmer and lighter than Linux ...

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