Re: GRUB Multiboot
> On Mar 29, 2022, at 9:54 AM, Stan Johnson wrote: > > Fortunately, for x86_64 there is rEFIt, which like yaboot appears to no > longer be maintained (but it still works). FYI this is the defacto successor to rEFIt, actively maintained, and is what I have been using as the bootmanager on my EFI macs the past few years: https://www.rodsbooks.com/refind/installing.html
Re: GRUB Multiboot
On 29/03/2022 02:33, Stan Johnson wrote: Hello, I've confirmed that the version of GRUB (2.06-2) from the 24 Mar 2022 powerpc installation CD can be used to boot other GNU/Linux operating systems on a PowerBook Pismo (Gentoo and Void both work). I also tried many different options in the grub.cfg file in an attempt to get Mac OS and Mac OS X to boot, but I was not successful. I'll set aside the disk that I've been using for testing in case anyone wants to try to get Mac OS and Mac OS X working. I can help with testing; unfortunately, I'm neither an OF expert nor a programmer, but I would guess that the best way to make GRUB boot Mac OS and Mac OS X would be for it to do whatever yaboot does. -Stan I'm fairly sure that it would do, since as you mention above it just needs to know which partition is the OS X volume. Out of curiosity does grub auto-detect blessed HFS/HFS+ volumes during installation and add them to the grub boot menu? If so, can you provide the grub.cfg. And do you have the output of fdisk and examples of grub.cfg entries that you have tried so far? ATB, Mark.
Re: GRUB Multiboot
Hello Stan, unfortunately, I'm neither an OF expert nor a programmer, but I would guess that the best way to make GRUB boot Mac OS and Mac OS X would be for it to do whatever yaboot does. I believe all yaboot does is ask OF to boot to the partition containing the original bootloader of OS X. When we dual boot OS X and Linux on a PPC Mac, we just shrink the OS X partition then put our own partitions after it, and tell OF to boot to the new Linux boot partition instead of the old OS X one. When you tell yaboot to boot to OS X, all it's doing is telling OF to boot to that original OS X boot partition. I don't know if GRUB has the ability to do that, but it would certainly be useful. -- Ben Westover OpenPGP_signature Description: OpenPGP digital signature
GRUB Multiboot
Hello, I've confirmed that the version of GRUB (2.06-2) from the 24 Mar 2022 powerpc installation CD can be used to boot other GNU/Linux operating systems on a PowerBook Pismo (Gentoo and Void both work). I also tried many different options in the grub.cfg file in an attempt to get Mac OS and Mac OS X to boot, but I was not successful. I'll set aside the disk that I've been using for testing in case anyone wants to try to get Mac OS and Mac OS X working. I can help with testing; unfortunately, I'm neither an OF expert nor a programmer, but I would guess that the best way to make GRUB boot Mac OS and Mac OS X would be for it to do whatever yaboot does. -Stan
