create multi boot up os on external usb drive using my mac os x catalina

i would like to create a multi boot up usb external drive on which I want to install multi linux os on it
so I can select from start up disc after holding option key whilst doing a restart on my mac pro os x catalina. I can use etcher to install one linux os and suucessfullt boot up and run.

your help/clarification on this matter would be appreciated.




I think you should find another tool for this task as basically Etcher only flashes your selected image to your drive so It can’t create a multiboot USB.

Thank you for your reply.

Have any suggestions re another software?

Kindest regards

Hi there,
you can try following this guide:

or wih one of the following software:

Unfortunately this is somewhat beyond our competence. I hope one of the proposed solutions will be successful.