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 © 2003-2004 Martin Zdrahal <martin.zdrahal@konflux.at>
Copyright © 2004,2012 Christoph Schindler <hop@30hopsmax.at>
Copyright © 2004-2012 Martin-Éric 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).
