How can I install ipfire on a USB key for Raspberry?

Hi !
I have installed ipfire on my Raspberry Pi3 Model B. Actually ipfire is perfectly running on a SD Card.
But I’d like to flash this installation as a backup on a bootable USB Key.
The goal is to keep a running system on a USB key, instead of a SD Card.

If someone knows how to proceed… you’re welcome :slightly_smiling_face:

(Sorry for my approximative English…)

I suggest that you research your idea in more detail, in RPi forums. To my knowledge, setting earlier model RPi to boot from USB was a permanent change and the device would not thereafter boot from SD.