Ubuntu's AI Kill Switch: Disable Canonical AI Features

At the end of April 2026, Canonical’s plans to bring AI features to Ubuntu had people asking for an “AI kill switch”. Phoronix reported the clarification from Canonical’s VP of Engineering, Jon Seager:

• AI features arrive as a preview, strictly opt-in, starting with Ubuntu 26.10.
• From 27.04, the initial setup wizard is planned to ask which AI features you want.
• There is no global kill switch: the features come as snaps, and removing them is how you turn them off.
• The default is meant to always be local inference against local models.

For a homelab server that means: nothing AI-related is installed on Ubuntu Server 24.04 or 26.04 today. The question is how to keep an eye on what a server talks to and installs, which applies with or without AI.

Audit what’s there

snap list                         # every installed snap
pro status                        # Ubuntu Pro attachment and services
systemctl list-timers --all | grep -Ei 'ua-|pro|motd|snap'
apt list --installed 2>/dev/null | grep -Ei 'landscape|popularity-contest'

What you might find on a server:

• snapd and its snaps: on Ubuntu Server, LXD, for example, comes as a snap.
• ubuntu-pro-client (pro): manages Ubuntu Pro (ESM, Livepatch). It ships by default and runs periodic checks. Unattached, it doesn’t give you anything extra.
• landscape-client: only if you or your image installed it. It reports to a Landscape server.
• motd-news: fetches news for the login message from Canonical.

Turn off what you don’t want

News in the login message and in apt output:

sudo sed -i 's/^ENABLED=1/ENABLED=0/' /etc/default/motd-news
sudo pro config set apt_news=false

Landscape, if it’s installed and you don’t use it:

sudo systemctl disable --now landscape-client
sudo apt purge landscape-client

Ubuntu Pro client: leave it installed unless you know what depends on it. Removing it can pull Ubuntu metapackages out with it; check with apt purge --simulate ubuntu-pro-client first. If you don’t attach a Pro subscription, it doesn’t enable any services.

Snaps: remove the ones you didn’t install deliberately with sudo snap remove --purge <name>. When Canonical’s opt-in AI snaps appear from 26.10, that’s also how you remove them; check snap list after release upgrades.

Removing snapd completely is possible, but anything you run as a snap (LXD on Ubuntu Server, for example) goes with it:

sudo snap list                     # check what you'd lose
sudo apt purge snapd
cat <<EOF | sudo tee /etc/apt/preferences.d/no-snapd
Package: snapd
Pin: release a=*
Pin-Priority: -1
EOF

The pin stops apt from installing snapd again as a dependency.

Containers

Ubuntu container images (ubuntu:24.04) don’t run snapd, the Pro client’s services or Landscape, so none of this applies inside them.

The bottom line

As announced, Ubuntu’s AI features are opt-in, local by default, delivered as removable snaps, and not part of current server releases. Keep auditing snap list after release upgrades. If you’d rather not depend on how Canonical’s plans evolve, Debian is the snap-free alternative.

What’s Next

• CachyOS vs Ubuntu 26.04 LTS vs Fedora 44: Best Linux Distro for Your Homelab Server: Deep comparison of Debian vs Ubuntu for headless homelab servers
• Linux Homelab Security Hardening: Complete Checklist (2026): Lock down the rest of the default install, not just the AI components
• Docker Compose for Homelab: What It Is and How to Use It: Building stripped-down Ubuntu Docker base images for homelab services