I will be concise and clear. I'm currently satesfied with the OMV 6 isntallation but i had many problems instaling it after almost 2 years using OMV 5. The only thing that was the problem for me is recognizing the wireless card when booted from USB.
My problem is that i use LTE router which doesn't have LAN ports, so I needed to share my connection (router connected with usb port) through LAN on Windows, then to the switch and then connection on LAN of the future OMV installation. I will not mention problems sharing that kind of internet, i will just say don't lose your faith Anyway, i will skip that story now, and tell you this.. My D-Link wireless USB wasn't recognized by the OMV boot ISO, or at least it just doesn't work as it should, so i ended with that sharing connection through LAN just to solve OMV 6 preparation for installation. After i rebooted computer OMV recognized wireless card and it was fine, but i can imagine people that don't understand OMV 6 installation that there aren't any warnings configuring wireless connection. OMV can see my card in installation but it just doesn't use it in proper way connecting to router to get packages from sources.
My question is, is it possible to use custom driver in ISO of OMV6 (RTL2800USB in my case) when booted from USB?