pi@raspberrypi:~ $ linuxcnc LINUXCNC - 2.8.0~pre1 Machine configuration directory is '/home/pi/linuxcnc/configs/hm2-stepper' Machine configuration file is '7i90.ini' Starting LinuxCNC... Found file(REL): ./hm2-stepper.hal Note: Using POSIX realtime hm2: loading Mesa HostMot2 driver version 0.15 hm2_rpspi: Short read from '/proc/device-tree/model'; read=31 required>=4294967295 hm2_rpspi: Unsupported Platform. hm2_rpspi: rtapi_app_main: Operation not permitted (-1) ./hm2-stepper.hal:38: waitpid failed /usr/bin/rtapi_app hm2_rpspi ./hm2-stepper.hal:38: /usr/bin/rtapi_app exited without becoming ready ./hm2-stepper.hal:38: insmod for hm2_rpspi failed, returned -1 Shutting down and cleaning up LinuxCNC...