
and HFS (Mac OS Standard HFS) should be supported since System 2.1, so for backwards compatibility it would be good to have HFS.

even though they still support creating and writing to images with MS-DOS compatible FAT.īut what if someone wanted to use System 7 or earlier in some emulator and wanted to create a disk image that could be mounted for System 7 and earlier to read files from it?Īrticles say that HFS+ was added in Mac OS 8.1. and even if you have a HFS disk image from before, it seems that they are mounted as read-only now if you double-click them in Finder. There used to be an option before to create HFS (the "Mac OS Standard" HFS) disk images in Disk Utility or with hdiutil, but in more recent versions of OS X / macOS options to create HFS disk images seem to be gone from Disk Utility and it seems that even if you use -fs HFS when using hdiutil that it automatically switches to HFS+.
