On Mon, 20 Apr 2020 at 15:12, John Paul Adrian Glaubitz <glaub...@physik.fu-berlin.de> wrote: > > On 4/20/20 3:30 PM, user...@yahoo.com wrote: > >> Did you try loading GRUB directly from the OpenFirmware prompt? > > > > From the Open Firmware prompt, the Debian 7.8 CD can be booted using the > > following command: > > 0 > boot cd:,\install\yaboot > > > > From the Open Firmware prompt, the Debian SID CD can't be booted; I > > tried these commands: > > 0 > boot cd:,\boot\grub\powerpc.elf > > MAC-PARTS: can't find a default partition > > can't OPEN: cd:,\boot\grub\powerpc.elf > > This should actually work unless the system has issues reading the > CD-ROM itself or the HFS+ filesystem used on the CD-ROM. > > > 0 > boot cd:,\install\vmlinux > > MAC-PARTS: can't find a default partition > > can't OPEN: cd:,\install\vmlinux > > > > 0 > boot cd:,\install\initrd.gz > > MAC-PARTS: can't find a default partition > > can't OPEN: cd:,\install\initrd.gz > > Neither of these can be booted. \boot\grub\powerpc.elf is the one > that should work. > > > Perhaps I'm not booting the right file? > > I have more the impression that your machine is unable to read the HFS+ > filesystem. >
FWIW, I have been booting the new images from USB, and there the command is boot ud:,\\grub.elf This is despite the fact that the ISO looks like it should want to boot boot/grub/powerpc.elf Remember also that you can list files in OF with dir ud:,\\ Or dir cd:,\\ etc
