A lot of Mac admins need to test software in their environment against both the shipping version of macOS and older versions of OS X. However, getting older OS installers from the Mac App Store (MAS) can be problematic if the Mac you’re using isn’t able to run the older OS as its own operating system. If the Mac you’re using isn’t itself able to run the older OS, a request to download the OS installer from the MAS will result in an error message like the one shown below.
If you’re in this situation, but also have VMware Fusion or a similar virtualization solution available, there is a way to download the desired older OS installer using a VM running the shipping version of macOS. For more details, see below the jump.
Slides from the “Storing our digital lives: Mac filesystems from MFS to APFS” session at MacADUK 2017
For those who wanted a copy of my filesystem talk at the MacADUK 2017 conference, here are links to the slides in PDF and Keynote format.
Keynote – http://tinyurl.com/MacADUK2017key
As part of assisting a colleague with a customer today, I needed to figure out how to enable the debug logging for Microsoft AutoUpdate. For Mac admins with a similar need, please see below the jump for details.