Permission denied

[21coolkarni]

orin@ubuntu:~/mavros_ws$ ros2 run ntpd_driver shm_driver
[FATAL] [1771674095.597136430] [shm_driver]: SHM(2) shmget(0x4e545032, 96, 666) fail: Permission denied

[vooon]

Yes, you should configure permissions to access shared memory, e.g. be in a same group as ntpd.