Upgrading my Mac Classic and lost at sea.bin

I am attempting to upgrade the system software on my Macintosh Classic. Currently it runs System 7.0 and I want it to run System 7.5. I have the System 7.5 images from Apple, and a Macbook with an external USB floppy drive. I also have a set of high density floppy disks.

Not that getting data from one to the other is easy. I’m lost in a world of sea.bin files and not a lot of idea what to do with them. I didn’t own a Mac when this stuff was current, and it appears nobody ever thought “aha in 18 years time people will be downloading System 7 images from the Internet onto their new Macs and then want to install them on their old Macs”

I’ve been at this too long, I’m giving up for the night.

Tags: blog365, mac, mac classic, operating system, retro