Jim Russell <[email protected]> wrote: > I discovered the missing link: after adding my user ID as a member of the > "video" group, a reboot was needed to complete that activity. So, I guess, > use pi could access the Wolfram stuff, but user jim was not allowed until he > joined one of Pi's groups. > > > On Apr 9, 2020, at 3:21 PM, James Russell <[email protected]> wrote: > > > > While Mathematica and Wolfram are free on the Pi, I keep getting asked for > > a license number i neither have nor seem to be able to obtain. I did find > > and old post about users having to be in the video group, which I put > > myself into, but it didn’t help. Have any PI users here have better luck? > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm
FWIW, when you add supplementary groups to your user, these only get picked up when you start a new login shell. In particular, this means any programs will only see your newly added group if you log the user out and back in again. It's definitely a common stumbling block and non-intuitive. The reason for this behaviour is that linux processes inherit the groups of their parent processes, in this case, your window manager, I assume. However, when you add a new group, this doesn't automatically add that to the already running processes, so they remain unaware of the change until restarted. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
