PhotonVision not Working on Romi Robot

[zagdrath]

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I followed both [https://docs.photonvision.org/en/latest/docs/getting-started/installation/romi.html] and [https://docs.photonvision.org/en/latest/docs/getting-started/installation/coprocessor-image.html#other-debian-based-co-processor-installation] while installing PhotonVision to my romi robot and when I do systemctl status photonvision.service an error come sup and says this.

I am unable to access the PhotonVision web interface by going to http://10.0.0.2:5800/ which is what the guide says to go to.

[zagdrath]

I do believe the issue is that the systemd service is not running as root even though it should by default.

[mcm001]

Yeah that seems to line up. Photonvision needs to run as root on Linux usually yes.

[Daltz333]

The solution here is that the system needs to be in RW mode.

systemctl stop photonvision.service
rw
systemctl start photonvision.service

The install script should detect if the host system is a romi (or have in docs) and disable RW (or other workaround) for the romi since photonvision handles this.

[Daltz333]

More information: Romi system can be detected via existence of

pi@photonvision(rw):~$ ls /service/wpilibws-romi
log  run  supervise

[gerth2]

Also update.... the latest development version (and eventual 1.9 release) should have a change which allows running without root. You won't be able to save settings, but it should at least execute.