You can download old versions of macOS from the Mac App Store or as direct downloads from Apple's website. Create a bootable ...

The Basilisk II emulator can be used to run old versions of Mac OS 8 and System 7 on a modern Mac. Here's how to get started using it. Before macOS and OS X, there was Mac OS 9, and before that were ...

UTM is a cross-platform emulator that allows you to run macOS, Windows, or Linux. Here's how to use it to run very old versions of Apple's Mac operating system. But there's another great free OS ...

Apple’s new operating system, Mavericks has been available to download since the end of October 2013. It’s a free upgrade for all versions of Mac OS X going back to 2009 – that’s Snow Leopard and ...

Make sure your hard drive is in good shape: Boot from the OS X Install CD and run Disk Utility's Repair Disk function (or use a third-pary drive utility such as DiskWarrior or TechTool Pro). When ...

Eric Benfer (Systems Administrator at Johns Hopkins Applied Physics Lab) writes of an unexpected problem involving two different versions of the Mac OS 9.1 Software Install CD that shipped with Power ...

I'm trying to virtualize Mac OS Leopard and Snow Leopard, both server versions, within Snow Leopard Server and High Sierra. Using VirtualBox, I end up in the EFI shell. Does anyone know the boot ...