Updated 2023-06-11 !
The use case is that I had an old iMac, max OS is High Sierra, that crashed
and it didn't work with an Internet or Time Machine restore.
The other MAC:s I have are running Catalina or Big Sur and if you try to
download and older OS, via app-store, you just get an error saying that the running OS don't accept the
download of an old OS.
The universal way to create an USB installer
seems to be using the command "createinstallmedia", requires OS X 10.7 Lion or later, but you need the respective OS install app !
A new, better ??, without Python dependences is found here.
In former posts,
Big Sur(11.7)
and
Monterey(12.7), I went through how to update an old MacBook Air 4.2, (mid 2011, SSD, 4 Gb
memory) which has a Non-Metal GPU.
In this post I will update a MacBook Air 6.2 with
SSD, Mid 2013, to Ventura(13.5) with the same
patcher but the latest version 6.2 !!
This is despite that max OS for this Mac is Big Sur
Awesome !!!
