Hello! I have been toying around with grub-macbless in order to switch the GRUB partition for PowerMacs running Debian from HFS to HFS+.
Currently, I we're stuck to HFS because the available »hattrib« tool for blessing a bootloader for NewWorld Macs supports HFS only. »hatttrib« is part of the hfsutils package [1]. In order to boot GRUB on an Apple PowerMac, it's first necessary to create an HFS filesystem, then run »grub-install« and then bless the bootloader directory [2]: # mkfs.hfs /dev/sda2 # mkdir /boot/grub # mount -thfs /dev/sda2 /boot/grub # grub-install --macppc-directory=/boot/grub # umount /dev/sda2 # hmount /dev/sda2 # hattrib -c UNIX -t tbxi :System:Library:CoreServices:BootX # hattrib -b :System:Library:CoreServices # humount Supposedly, »grub-macbless« should be able to bless a boot directory as well, but the following command will not create a bootable system: # grub-macbless --ppc /boot/grub/System/Library/CoreServices However, an HFS boot partition treated like this with »grub-macbless« does not create a bootable system, even when running the »hattrib« command to set the »tbxi« attribute on the »BootX« flag. So, it's currently not possible to create a bootable GRUB partition on Apple PowerMac using just »grub-macbless«. Also, in order to be able to replace »hattrib« from »hfsutils«, »grub-macbless« should support both blessing a system directory as well as setting the »tbxi« attribute on the stage1 bootloader »BootX«. Adrian > [1] https://www.mars.org/home/rob/proj/hfs/ > [2] > https://salsa.debian.org/installer-team/grub-installer/-/blob/a8b85210dfa37b894714e269ae323c2af2f23858/grub-installer#L1030 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
