Recovering configurations after a fresh install

[James H]

I would suggest backing up all of /etc (only 14 Mb on my machine).  That
way you have most of the system-wide configuration files.

   JamesH

Andrew Ash wrote:
> [1] Monitor configs (X server) are stored in /etc/X11/xorg.conf and
> other files there with suffixes are backups
> 
> [2] Repository information is stored in /etc/apt/sources.list
> 
> If you backup those two files, that should be most of what you're
> looking to keep.