Thanks in advance for your assistance...
I installed Deja Dup and tried to do a complete back by selecting any folders I have installed to or edited files (config files etc) and discovered that I could not add specific folders like /etc because Deja Dup said it didn't have authorization to those folders.
I read in the forum that I should set Deja Dup to backup the root folder /.
So I did that and it did backup more than just /home but it only backed up /home /usr /var and nothing else (watching the details of the backup) and is also evident by the backup folder only being 19GB but my system drive is 63GB of data.
I edited plenty of config files in /etc that I don't want to have to do again if I restore a new install - so what do I do in Deja Dup so it will backup ALL data on my system drive..?