Hello, I have done some debugging on ppc64 to find out why the the kernel no longer boots on PowerPC G5 (PowerPC 970) systems.
It turns out that the issue is much more complicated than I expected since the same kernel that doesn't boot debian-installer boots perfectly fine when installed after installation. I used QEMU for testing using the 970 CPU type (-cpu 970) and Mac99 machine type (-M mac99). I used a 32-bit system (powerpc) and installed a 64-bit kernel which works both fine with the 6.6.15 and 6.7 kernels. The same kernels don't work when used to boot debian-installer, I created test images here: > https://cdimage.debian.org/cdimage/ports/tests/ppc64-test/debian-12.0.0-ppc64-NETINST-1.iso > https://cdimage.debian.org/cdimage/ports/tests/ppc64-test-new/debian-12.0.0-ppc64-NETINST-1.iso There is also an updated debian-installer image for ppc64 with the 6.6.15 kernel: > https://cdimage.debian.org/cdimage/ports/snapshots/2024-02-25/ Would be great if anyone on this list with a PowerMac G5 ready for testing could check whether any of the images above boot on their machine. Thanks, Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
