Install OSX Installers on External NVME drive partition for multi os installer, Ventura, Monterey, Big Sur

[ernie599]

Hello Everyone

I would like to be able to portion a 512 nvme into multiple partition to install osx

ex: partition into 7 and install Sonoma, Ventura, Monterey, Big Sur, Catalina, Mojave etc on 1 drive but be able to select which one to install of course.

does anyone know how or do this?

 

[Fishrrman]

Just my opinion, but the "better way" to do this is to use several small flash drives (16gb ought to do for each), and create INDIVIDUAL bootable USB flash drives.

Less confusion, and fewer chances for things to "go wrong" when you're not expecting them to...

 

[chrfr]

Hello Everyone

I would like to be able to portion a 512 nvme into multiple partition to install osx

ex: partition into 7 and install Sonoma, Ventura, Monterey, Big Sur, Catalina, Mojave etc on 1 drive but be able to select which one to install of course.

does anyone know how or do this?

Just make several partitions in Disk Utility and point the various installers to the appropriate partitions. There's no need to separate them onto individual flash drives.