Partition problems during external ssd installation.

Hi to all guys,

I'd like to perform a live installation of Kali on an external ssd, in order to have a persistent system to connect to my Mac Book, independently from the main OS.

I've created, following this site indications, a live usb using the same ssd that I'd like to use as permanent Kali drive.

I've launched the installation procedure but, during the partition creation step, I encountered an issue that didn't allow me to complete the installation process.

A message indicated to me that the partition hadn't been performed and I had to cancel the installation.

Can anyone give to me some guidelines on how to solve my problem?

Thank you all!

168grani