System 1 should boot within the Mini vMac window. Select the System 1 disk image and click the Open button.ħ. To select a startup disk, click on the File menu and select Open Disk Image…Ħ. By default, no startup disk option is selected so a window will open and display a floppy disk icon with a blinking question mark.ĥ. Note: Having all three in the same directory is necessary so that the ROM file is automatically detected when Mini vMac launches the OS from the System 1 disk image.Ĥ. Put Mini vMac, the System 1 disk image and the ROM file together in one directory.

I recommend using The Unarchiver to uncompress these files.ģ. The System 1 disk image and ROM file are compressed using a Stuffit archive format which OS X’s built-in decompression utility is unable to open. Uncompress the System 1 disk image and ROM file. Download Mini vMac, the System 1 disk image, and the Mac ROM file.Ģ. With this information, I was able to get System 1 up and running inside of the Mini vMac emulator.

Mac capitan emulator