I actually already have a working solution that I documented in my github repo (dubschro/odroid-n2). All I do is set BOOTCOMMAND to check/delete a flag file on my boot partition and if it is found, then reset usb and sleep for 10 seconds. I then have a systemd shutdown script only on reboot to touch that file.
CONFIG_BOOTCOMMAND="fatrm mmc 0:1 reboot && echo Resetting USB on reboot... && usb reset && sleep 10; run distro_bootcmd" It is a hack, but... the system reliably reboots remotely now, and that's the important part for now. Wayne On Thu, May 8, 2025 at 11:22 AM Ferass El Hafidi <fundersc...@postmarketos.org> wrote: > > On Wed May 7, 2025 at 1:03 PM UTC, Wayne Schroeder wrote: > > It's hard for me to quantify if usb works in u-boot as I'm not loading > > off of any usb storage devices. It certainly never lets me use the > > keyboard to abort auto boot, and never has. On reboot, to reliably > > You can send bytes via UART to abort boot, if you happen to have a UART > adapter around.
