Kali Linux bootable USB not showing up in boot menu

big surdisk-utilitypartitionunixusb

I am using a 2018 MBA running Big Sur

I wanted to create a persistent bootable USB with Kali Linux and have followed the exact instructions as given in this article: https://medium.com/macoclock/install-kali-linux-live-usb-with-persistence-using-macos-b1574c996491

However after powering on and pressing the option key, the bootable USB does not show up. This is partition containing the OS:

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Here, it shows Bootable "No" but I don't know why. Also this partition is not mounted and Big Sur isn't allowing me to mount it as well and shows an error.

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I am not sure what the issue is here and would be extremely grateful if someone helped out

Best Answer

If my memory serves me correctly, you can not boot iso9660 images from a partition on Intel Mac computers. At least not directly from the Mac firmware. I am not sure what the author of your linked reference was thinking.

I would recommend following the instructions publish by kali.org. Below are two webpages which together cover the creation of a portable Kali with persistence.

Making a Kali Bootable USB Drive (macOS/OS X)

Adding Persistence to a Kali Linux "Live" USB Drive

If you are still having problems, then update your question and post a comment below.