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

Authors

Bugs

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

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.

Environment

The configuration file may contain any of these environment variables: UPGRADEOPTS This variable specifies which one of dist-upgrade or upgrade to execute as the apt-get(8) upgrade command and the command options. Built-in defaults are: UPGRADEOPTS="--purge --option APT::Get::Build-Dep-Automatic=true --auto-remove --fix-broken dist-upgrade" Consult the apt-get(8) manual page to check which options are available for any particular version, before setting this variable. ORPHANOPTS This variable specifies deborphan(1) command options. Built-in defaults are: ORPHANOPTS="--libdevel --guess-all --no-guess-debug" Consult the deborphan(1) manual page to check which options are available for any particular version, before setting this variable. CLEANOPTS This variable selects which one of autoclean or clean to execute as the apt-get(8) cleaning command. Built-in default is: CLEANOPTS="clean" Consult the apt-get(8) 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 variable has no default value. 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. sudoFLAUSCH=jawohlupgrade-system

License

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

Name

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

Notes

In the absence of a configuration file, upgrade-system(8) will use the above built-in default values. apt-get(8) --purge --option APT::Get::Build-Dep-Automatic=true options roughly correspond to deborphan(1) --find-config --libdevel. Because upgrade-system(8) is an APT front-end, all precautions relating to APT configuration should be observed. Pay special attention to: /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 on 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.