Cant access sdb disk when adding library

[Grubz]

I am pretty novice to Linux and jellyfin. I recently swapped my jellyfin from my windows OS to Linux Ubuntu via OracleVM. I took my 2tb physical disk and made a .vmdk and attached it to my Ubuntu OS in VM. I can see and able to access the disk on VM. I have Docker and portainer installed, and currently jellyfin running. However on the Jellyfin Webgui when I want to add library ,I cannot see nor access my 2tb physical disk (sdb1) thus I cant access the movies/shows I already have in there. I comb the internet and I notice something about mounting which I am sure that is what I am missing and need to have it dumb it down to me like I'm a five year old, but I also understand it can also be a permissions issue. 

Can anyone enlighten me on this? I am willing to learn!

Update* remade the container Jellyfin on portainer and suddenly I am able to access the disk. Now I have to figure out why Sonarr and Radarr (also on portainer) cant detect my disk

Cheers 

Grubz