How to extract an old macOS installer from PKG on a newer version of macOS
Background I have an old 2016 Intel MacBook Pro that I’ve had running Ubuntu for a while but could never get the sound to work in Linux so I decided to reinstall macOS on it. Should be easy right? Wrong… Instead of setting up a dual boot situation, I cleverly decided to wipe the whole hard drive in favour of Ubuntu, recovery partitions and all. But no matter, Intel Macs can boot into an internet recovery system without the recovery partition by holding ⌘ R on power....