Boot Stick Not Recognized on iMac (11.2) for Sequoia OS Installation

Hello everyone,

I’m trying to install Sequoia on my iMac (Model 11.2), upgrading from High Sierra, but I’m encountering an issue where my boot USB stick is not recognized during startup.

I’ve created the installer on the USB stick multiple times and formatted it correctly, but when I try to boot the Mac and enter the BIOS/Startup Manager, the USB stick doesn’t appear as an option to select.

Has anyone experienced this issue or know of a solution to get the boot stick to show up for OS installation?

Thanks for any help!