Name
unattended-upgrade - automatic installation of security (and other) upgradesSynopsis
unattended-upgrade [options]Description
This program can download and install security upgrades automatically and unattended, taking care to only install packages from the configured APT source, and checking for dpkg prompts about configuration file changes. All operations are logged to /var/log/unattended-upgrades/unattended-upgrades.log and the package manager (dpkg) output is logged to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log This script is the backend for the APT::Periodic::Unattended-Upgrade option and designed to be run periodically by APT's systemd service (apt-daily-upgrade.service) or from cron (e.g. via /etc/cron.daily/apt).Options
unattended-upgrade accepts the following options:-h, --help help output
-d, --debug extra debug output into /var/log/unattended-upgrades/unattended-upgrades.log
--apt-debug detailed APT/LibAPT output for debugging
-v, --verbose show verbose output
--dry-run Just simulate installing updates, do not actually do it
--minimal-upgrade-steps perform upgrade in minimal steps (cancel with SIGINT). This is the default now.
--no-minimal-upgrade-steps do not perform upgrade in minimal steps
Configuration
The configuration is done via the apt configuration mechanism. The default configuration file can be found at /etc/apt/apt.conf.d/50unattended-upgradesAuthors
unattended-upgrade is written by Michael Vogt <[email protected]>This manual page was originally written by Michael Vogt <[email protected]>
Copyright
Copyright (C) 2005-2009 CanonicalThere is NO warranty. You may redistribute this software under the terms of the GNU General Public License. For more information about these matters, see the files named COPYING.