Having dutifully followed advice and backed up my NAS drive using rsync, I have formatted the NAS and now want to write the contents of the rynced drive back to the NAS. But it gives me lots of 'Permission Denied' errors. I thought I'd re-created the NAS as it was but that's done through a web browser so I might well have screwed it up but it seems to be working, albeit that I can't now write to it.
So once and for all, I'd like to fix the problem so that in the future, I can read and write files to the NAS without experiencing permission errors.
I tried to find the cause of this error on google but it only returns one result and that's no help at all. I then looked at the groups configuration GUI on the machine but there are no groups numbered above 500 so how come this one is saying 199528447? If it helps, the user number is the same.
So where do I start with trying to fault find this?