Provided by: upgrade-system_1.6.1.0_all bug

NAME
       upgrade-system.conf - Configuration file for upgrade-system(8)


DESCRIPTION
       upgrade-system.conf is the configuration file for the upgrade-system(8)
       Debian administration utility. This file specifies command options used
       for calling apt-get(8) and deborphan(1) within upgrade-system(8).

       Lines starting with a hash mark ("#") and empty lines are ignored.


EXAMPLE
       The configuration file contains four variables:

   CLEANOPTS
       This variable selects which one of autoclean or clean to execute as the
       apt-get(8) cleaning command. For example:

       CLEANOPTS="clean"

       Consult the apt-get(8) manual page to check which options are available
       for any particular APT version, before setting this variable.

   UPGRADEOPTS
       This variable specifies which one of dist-upgrade or upgrade to execute
       as the apt-get(8) upgrade command and the command options. For example:

       UPGRADEOPTS="-f -u dist-upgrade"

       Consult the apt-get(8) manual page to check which options are available
       for any particular APT version, before setting this variable.

   ORPHANOPTS
       This variable specifies deborphan(1) command options. For example:

       ORPHANOPTS="--guess-all --libdevel --priority=2"

       One should read the deborphan(1) manual page to check which options are
       available for any particular version, before setting this variable.

   FLAUSCH
       Setting this variable enables various extremely pedantic purge options.
       This feature is totally experimental; usage is strongly discouraged and
       should only be attempted by truly experienced Debian administrators. It
       can be used to sanitize a Debian system after a distribution upgrade or
       to detect packages that don't conform to the Debian Policy. Setting the
       variable as a command line environment, only when needed, is considered
       a safer approach than adding it to upgrade-system.conf variables.


SECURITY
       Because upgrade-system is an APT front-end, all precautions relating to
       APT configuration should be observed. Special attention is required to:

   deborphan
       Certain combinations of deborphan(1) options purge a dangerous quantity
       of packages, potentially leaving a system in a severely crippled state.

   /etc/apt/preferences
       To prevent untested packages from overwriting stable ones, setting this
       combination of APT preferences is recommended:

              Package:  *
              Pin:  release a=stable
              Pin-Priority:  990

              Package:  *
              Pin:  release a=testing
              Pin-Priority:  500

              Package:  *
              Pin:  release a=unstable
              Pin-Priority:  100

              Package:  *
              Pin:  release a=experimental
              Pin-Priority:  1

       This enforces a priority to packages from Stable, yet still allows ones
       from Testing, Unstable or Experimental to get installed via appropriate
       apt-get(8) options to override the default release.


AUTHORS
       Copyright (C) 2003-2004 Martin Zdrahal <martin.zdrahal@konflux.at>
       Copyright (C) 2004,2012 Christoph Schindler <hop@30hopsmax.at>
       Copyright (C) 2004-2012 Martin-Eric Racine <martin-eric.racine@iki.fi>


LICENSE
       GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>.


SEE ALSO
       apt-get(8), apt_preferences(5), deborphan(1), upgrade-system(8).