I would like to backup every important file on my computer such that in the event I lose all my data I can get my computer back to its "normal" state as fast as possible. I have a large hard drive (~500GB) to store my backup on, so memory is not an issue. Obviously I should backup my home directory, but what else? For example, should I back up my /usr/ directory as well?

  • You only need to back up /home , a list of packages, and any system files you manually edited. Otherwise the system files will be restored when you re-install and update.
    – Panther
    Feb 13 '15 at 21:33
  • Also have a look here for a good back-up strategy...
    – Fabby
    Feb 16 '15 at 10:29

I generally backup ~/ as it contains most program's configurations (i.e. chromium,gedit), and /etc as it contains most system configurations (i.e. wifi, sudo).

Just one opinion though.

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