After I updated the code to the current version (using update.sh), I had some trouble with the camera. When it finished booting, I browsed to the Cockpit gui 192.168.254.1:8080. The camera screen was just black. I believe BB could detect the camera or else Cockpit should show the "no camera" icon. But I dont know why it has that issue.
I found a way to go around: restart the Cockpit using Dashboard 192.168.245.1. Only after that it could work normally.
Some note about my BB. I mod a bit on the openrov source code folder. First, i use the script copy_to_emmc.sh to copy the OpenROV-2.5-05.img from SDcard to the internal memory of BB. The second thing I do is copying dashboard.service into /etc/init.d/
sudo ln -s /opt/openrov/linux/dashboard.service /etc/init.d/dashboard
sudo chmod 755 /etc/init.d/dashboard
sudo chown root:root /etc/init.d/dashboard
sudo update-rc.d dashboard defaults