Creating macOS Installation Media

Creating macOS Installation Media

Here is how to create a USB install disk for macOS 10.9 and up. 1) Download the installation app from the Mac App Store. You will see the installation window pop-up after the download finishes — just close this. Now you will have the installer in your...
Disk Utility Won’t Reformat Hard Drive

Disk Utility Won’t Reformat Hard Drive

This seemed to become a bigger problem with the introduction of macOS High Sierra (10.13) and the APFS file system. Essentially the problem is, in Disk Utility, you can’t erase a boot drive, it will just return an error that it can’t unmount the disk. The...
Useful Terminal Commands

Useful Terminal Commands

Here are some useful Terminal commands Show Hidden Files Shows hidden files in the Finder defaults write com.apple.finder AppleShowAllFiles YES; killall Finder Hide Hidden Files Hides hidden files in the Finder again defaults write com.apple.finder AppleShowAllFiles...