If that is a problem, you may have to create a disk image with Disk Utility then erase and reformat it (you can only specify the disk format when you erase the disk, not when you first create it).
#Mac os x lion emulator mac os
For SheepShaver, use the Mac OS ROM Update 1.0, provided by Apple. Use CopyROM or ROM-grabber for the extraction. For B2, you must extract a ROM file from an old 68K Mac that you own. E-Maculation has a downloadable OS 7.5.3 starter disk already prepared ( 4.3MB download).
#Mac os x lion emulator for free
You can get OS 7.5.3 for free from Apple. An old Mac OS (up to OS 8.1 for B2, or OS 7.5.2 through 9.0.4 for SS).
![mac os x lion emulator mac os x lion emulator](https://www.insanelymac.com/uploads/monthly_12_2011/post-643889-0-67913400-1325085329.jpg)
B2 emulates an old 68K Macintosh, while SS emulates a PowerPC Mac.
#Mac os x lion emulator mac os x
Do you use an Intel-based Mac but still have a few essential Classic (pre-OS X) Mac applications you want to run? Recent universal compiles allow you to use SheepShaver (SS) or Basilisk II (B2) to run Classic software in emulation on Intel Macs under Mac OS X directly - or under Windows via dual-boot or Parallels virtualization.