update FAI-installed system

[Michael Tautschnig]

> How can I avoid overwriting config files changed by me without asking?
> How are others handling this situation?
>

/etc/apt/apt.conf :

DPkg
{
   Options {
           "--abort-after=4711";   // a magic number in cologne ;-)
           "--force-confnew";
           }
};

is set up by FAI as a default - replacing force-confnew with force-confdef 
will tell apt/dpkg that you don't want your files to be replaced.

Regards,
Michael