On Fri 17 Jun 2022 at 18:14:41 (-0400), gene heskett wrote: > On 6/17/22 16:29, Anssi Saari wrote: > > gene heskett <ghesk...@shentel.net> writes: > > > > > I just did all that, so now I have an /etc/rc.local but not an rc-local > > > but he changes from rc.local to rc-local in the middle. confusing. > > > > > > So which is it. I originally created an rc.local, changed it to > > > rc-local, and back with mv.
> > The script file is /etc/rc.local but the systemd service name is > > rc-local. > > > > > Now, I'm not aware of who heyu runs as, probably gene since I'm the > > > one running it and there is no user heyu. > > > > > > Now, 2 new questions: > > > > > > So what do I put in this rc.local to allow me, gene, to use /dev/ttyUSB0, > > > which has the cm11a on the other side of an fdti adaptor? > > Since you seem to have the expected permissions for /dev/ttyUSB0 and > > /dev/ttyUSB1 maybe you could just add gene and nut users to the dialout > > group? adduser gene dialout and adduser nut dialout. > > > > But if you really want to use rc.local then setting the group to nut > > for the UPS line /dev/ttyUSB1 would work, so just > > > > chgrp nut /dev/ttyUSB1 > > > > And then chgrp gene /dev/ttyUSB0 > > > > Hope it helps! > Absolutely the magic twanger Anssi. I put it all in rc.local, or in > /etc/group > then ran rc.local for S&G, checked the devices were changed, restarted > nut-server and nut-client, works as expected, then ran "heyu info" as me > and got the expected response. > > Finally, someone was not afraid to answer my questions. I missed seeing the answer to your first question, at the beginning of the month, where you asked how to determine which way round the ttyUSBs have been assigned at boot.¹ I've only seen your reports of unplugging and replugging the connections each time. I'm afraid that's the question I was interested in answering by means of the example I gave. Until you know which is which, you can't reliably assign the port to TTY in nut (which should set the ownerships itself, shouldn't it?). I don't know about those for heyu as it's not in Debian at present. ¹ "As a furinstance, I used to be able to cat a /dev/ttyUSB*, which made self indentifying which was which easy, cuz if you unplug a cm11a, it will send … … …". Cheers, David.
