What to select to back up from my system

Question

I am using Déjà Dup and trying to back it up so i can try install a legacy driver and in case the install fails I can just restore.

Tried Nepomuk but I dont understand not one bit of how it works so I searched on the internet and Déjà Dup was my best choice.

I selected all directories from filesystem but I get errors, first was the file "pagemap" from /proc directory, removed it and now I get some errors that some other files were not possilbe to backup.

So what directories to select from my filesystem so in case of a fail update or installment, to restore to its earlier state?

I've broken enough filesystems and getting sick of it.

I don't need partition cloning tools, I sarched others solutions,I cannot find one that works with my issues.

Example:Like system restore does for windows.

Answer 1

Two cautions: 1) Even as the author of Deja Dup, I still advocate simply copying files for one-off backups like this. Deja Dup's usefullness is really for long term scheduled backups.

2) Deja Dup is geared more towards user data backups than system level backups. That said, it should work. It just has some warts like not being able to read some root-owned files as your regular user (which is normal, but DD won't prompt for permissions, it will just skip it and tell you it missed the file).

OK. With those caveats, I would say just put / in your included folders list. Deja Dup automatically skips common folders like /proc that shouldn't be backed up (unless you tell it explicitly to include it as you did). See the help documentation for a full list of automatically excluded folders