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Officially there is no support for USB boot on Pi 4 yet. The current supported solution is boot from read only file system on SD card, overlay file system with
by giobox 6y ago
Officially there is no support for USB boot on Pi 4 yet.
The current supported solution is boot from read only file system on SD card, overlay file system with writes to the USB drive.
The foundation plan to add support back but for now only supported on Pi 3 and earlier.
- kingosticks 6y agoYou don't need to use an overlay filesystem (didn't know that was even a supported solution), you can move the rootfs to the usb device and point to it. See https://gist.github.com/lucabelluccini/9a11c48dcf1d627bbcbd8213f6de3eae https://gist.github.com/lucabelluccini/9a11c48dcf1d627bbcbd8...
- destitude 6y agoThere is post that at least describes in detail how to enable this beta feature: https://www.jeffgeerling.com/blog/2020/im-booting-my-raspberry-pi-4-usb-ssd https://www.jeffgeerling.com/blog/2020/im-booting-my-raspber...