Hi all,

I've been having fun with the SD-to-IDE and successfully partitioned a card with the OnTrack software and installed MS-DOS 6.22 on it. Everything works flawlessly but the SD card is unreadable except in Linux where I can add an offset flag, like this:

1mount -t vfat -o offset=64512,... /dev/sda1 /mnt

But my main machine is a recent macOS one, not a Linux one. I just can't figure out how to mount an old DOS partition on macOS as I need to specify an offset, but offset is an unsupported option in both mount_msdos (mount -t msdos) and mount_exfat (mount -t exfat).

Is there anyone who knows how to provide an offset when directly mounting stuff in macOS?
I'd be very grateful, thanks so much!

(I don't know if this is the right forum, sorry if otherwise)