===== Access USB serial device in container ===== Create a udev rule on the host for all usb-serial devices. Set OWNER to your 1000 user. cat << EOF | sudo tee /etc/udev/rules.d/50-usb-serial.rules SUBSYSTEM=="tty", SUBSYSTEMS=="usb-serial", OWNER="jas" EOF Reload udev. sudo udevadm control --reload-rules sudo udevadm trigger The serial device should now be owned by your user. ls -l /dev/ttyUSB0 crw-rw----. 1 jas dialout 188, 0 Mar 15 11:09 /dev/ttyUSB0 You can now run minicom inside the toolbox container. distrobox enter default minicom -D /dev/ttyUSB0