What are the things you could advice in that context, for someone who don't know linux, for not diving into dramatic problems ?
Openmediavault has a recent feature which allow to update it when the user ask for it from the gui.
I use an old proxmox release for now, but i think i heard recent proxmox releases were able to do the same thing for easy updating from the gui.
What are the risks, things to care about and how for the update of one and the other don't cause cross damages ?