| Thanks Howard!
I wasn’t able to find the “right” set of options to hdiutil to create a HFS+ disk image that OF seems to understand. However, I was able to get a cd/ISO filesystem to work after switching to mkisofs. For the record, in case anyone is looking for this in the future:
% mkisofs -o boot.iso -chrp-boot -R -J bootdisk
Does the trick — at least being visible to OF. Note that bootdisk is a directory containing the files to be at the top level of the ISO. However, the file names all appear in upper case with version numbers ‘HELLO.TXT;1’ for example. If I can improve on this, I’ll update this thread.
Thanks for the help!
Rob On Oct 1, 2023, at 9:44 PM, Howard Spoelstra <hsp.cat7@gmail.com> wrote:
Hello,
Out of curiosity and self education I’m trying to setup a dev environment where I can experiment with early boot stages on PPC/PPC64 machines.
I started out trying to get my local filesystem mapped through via VFAT to a fat based filesystem (floppy or otherwise) to a OF device that I can use to load/execute boot code. No luck.
I tried creating fat floppy filesystems (Mtools) also no luck.
I also tried building iso images (using hdiutil, I’m using a Mac) without luck.
There must be something fundamental I’m missing about how the details of the -drive directive work. And there must be something about how I’m creating the ISO image (because I can attach a FreeBSD ppc ISO and see its filesystem as OF device “cd:,\”
Is there an easy way to create/build an image (or directory—if VFAT can be made to work) that can be attached via command line options and have it visible as a source of files for booting the ppc/ppc64 emulated environment?
Thanks!
Rob
Hi,
Openbios can read hfs. So you might want to create a hfs hd image. Attaching is simple: -drive file=hfs.img,format=raw,media=disk
Best, Howard
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