Have you actually tried it?
Assuming a recent Pi4 or Pi400, you just plug in the USB thumb drive or SSD and it just works. There's nothing to do to tell it to boot from USB.
Ifyou've got an old Pi4 then you might have to upgrade the boot code.
On 07/11/2022 15:24 EST Aaron K5ATG via groups.io <k5atg@...> wrote:
Does anyone know how I can boot an RPI4 from a thumb drive to make sure that it works and to set it up to boot from a USB?
Nigel A. Gunn, ///shoulders.outwards.resolutions tel +1-937-971-0366
Amateur Radio G8IFF W8IFF and GMRS WRBV701, e-mail nigel@... www
Nigel Gunn, G8IFF/W8IFF