systemd systemd-hwdb 8 systemd-hwdbhardware database management tool systemd-hwdb options update systemd-hwdb options query modalias systemd-hwdb expects a command and command specific arguments. It manages the binary hardware database. --usr Generate in /usr/lib/udev instead of /etc/udev. -r --root=PATH Alternate root path in the filesystem. -s --strict When updating, return non-zero exit value on any parsing error. Update the binary database. Query database and print result. hwdb7