> My problem is that each time I reboot (using shutdown -r now)
> my system boots into an initrd shell asking me to fsck /dev/sda3
> Possibly related log entry:
To access USB devices on RPi4B, initramfs must load reset_raspberrypi.ko, as
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977694
I hope it fixes your problem.
Best regards, Ryutaroh Matsumoto