Hello,

I'm trying to install 3.18 after years on a recently acquired imac g5 following the usb installation guide but i actually failed to boot and i'm stuck at the OF screen with the following :

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I understood that something is preventing Morphos to boot so here what i've done until now :
- Prepared usb stick on a windows pc (mbr/fat32)
- Tried to boot with old original macos hdd installed -> failed
- Tried to swap the hdd for a pcie sata ssd (with adapter) prepared on pc/windows too (gpt) and tried to boot on usb -> failed with the same screen.

I suppose the usb key or the ssd is preventing to boot somehow but don't know which path to take.
Can someone hint me ? :)

Thx

Are you sure you used the correct (mac_ppc64) boot image (and that the ISO file is named morphos.iso)?

open the ISO file by double-clicking it. If you are going to install MorphOS on a G4 Mac, go to the mac_ppc32 directory. For a G5 installation, go to mac_ppc64. Copy the boot.img file to the USB stick.
https://morphos-team.net/guide/usb-boot#section3

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I forgot to mention that i already did that, but i double checked and it is mac_ppc64 boot.img.

Probably OpenFirmware cannot handle your stick or stick (partition) is too big.
Try with small partition max 250mb.

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some the usb stick don t work correctly with morphos too

have you rename in boot.img i don t remenber exactly

no it s morphos3.18iso to rename mrphos.iso

Stupid me, i hadn't renamed the .iso ...
Thanks, i am now to morphos install screen !

Eh TheFab ! Happy to see you're still on MorphOS side

--
/me says "betabouffon one day, betabouffon forever"

just looking from time to time :D

Just useless post to test wayfarer (yes it took me 10 days :p)