unattended-upgrade(8)

🎀 unattended-upgrade(8) 🎀

System Manager's Manual 💅

✨ NAME ✨

okay so unattended-upgrade is the tool for automatic installation of security (and other) upgrades 🔥 no babysitting required bestie

💖 SYNOPSIS 💖

unattended-upgrade [options]

🦋 DESCRIPTION 🦋

okay so this program can download and install security upgrades automatically and unattended 🫶 it's giving responsible. It only installs packages from the configured APT source (no sketchy strangers 🙈) and it checks for dpkg prompts about configuration file changes so it doesn't just freeze on you 💀

All operations get logged to /var/log/unattended-upgrades/unattended-upgrades.log 📝 and the package manager (dpkg) output gets logged to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log ✨ receipts, bestie.

This script is the backend for the APT::Periodic::Unattended-Upgrade option 👑 It's designed to be run periodically by APT's systemd service (apt-daily-upgrade.service) or from cron (e.g. via /etc/cron.daily/apt) 🌸 main character energy, running on schedule.

🌈 OPTIONS 🌈

unattended-upgrade accepts the following options, obsessed with all of them tbh:

• -h, --help — help output, the OG cheat sheet 📖
• -d, --debug — extra debug output into /var/log/unattended-upgrades/unattended-upgrades.log 🔍 for when you need the tea ☕
• --apt-debug — detailed APT/LibAPT output for debugging 🧠 the deep dive
• -v, --verbose — show verbose output 🗣️ chatty mode activated
• --dry-run — just simulate installing updates, do not actually do it 🙈 it's a rehearsal, not the show
• --minimal-upgrade-steps — perform upgrade in minimal steps (cancel with SIGINT) 🍓 this is the default now, so you're already slaying. Cancel with SIGINT if you need to bail
• --no-minimal-upgrade-steps — do not perform upgrade in minimal steps 🚫 opting out of the minimal vibe

🧚 CONFIGURATION 🧚

The configuration is done via the apt configuration mechanism 💜 The default configuration file lives at /etc/apt/apt.conf.d/50unattended-upgrades ✨ go check it out, it's iconic.

👑 AUTHORS 👑

unattended-upgrade is written by Michael Vogt <mvo@ubuntu.com> 🫶 legend behavior.

This manual page was originally written by Michael Vogt <mvo@ubuntu.com> 📜 the OG writer, no cap.

🔥 COPYRIGHT 🔥

Copyright (C) 2005-2009 Canonical 💅

There 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 📄 read the fine print, it matters, bestie.

Dated March 1, 2019, for unattended-upgrade(8), signed with love 💖🦋🎀