Advanced Usage

Updates

JetKVM checks for updates on its own, installs them when no one is connected, and restarts to finish. Stable releases are signed by JetKVM, and the device checks the signature before installing one.

Update JetKVM

Automatic updates

Auto Update, under Settings > General, is on by default. The device checks 15 minutes after it starts, then every hour, and waits while someone is connected.

New versions reach devices in stages, so yours may update a few days after a release. Until then, Check for Updates won't show it either.

Check for updates

Click Check for Updates, under Settings > General, and install from there. The device restarts and the page reconnects.

Install a specific version

To go back to an older version, for example, open Settings > Advanced > Update to Specific Version. Versions are on the releases page for JetKVM and for JetKVM Mini.

DeviceWhat you update
JetKVMThe app, the system or both, picked under What to update.
JetKVM MiniIts single firmware image, so there's one version to enter.

Auto Update then turns off, so the device doesn't update past your version. Turn it back on under Settings > General.

Dev channel

Turn on Dev Channel Updates, under Settings > Advanced, for new builds before everyone else. They're less tested, so expect the occasional bug.

If an update won't install on JetKVM

If updating from the web interface fails, you can install the latest stable app from the command line. This needs Developer Mode.

Developer Mode

Open a shell on JetKVM

Connect over SSH, or click Web Terminal in the action bar.

Run the upgrade

The command asks for the newest app for your model, checks the download against its SHA-256 checksum and restarts JetKVM to install it.

Terminal
JETKVM_SKU="$(cat /etc/jetkvm-sku 2>/dev/null || printf jetkvm-v2)" && \set -- $(wget -qO - "https://api.jetkvm.com/releases?deviceId=manual-update&sku=$JETKVM_SKU&appVersion=%3E%3D0.0.0" | sed -n 's/.*"appUrl":"\([^"]*\)".*"appHash":"\([^"]*\)".*/\1 \2/p') && \test "$#" -eq 2 && \TMPFILE="$(mktemp)" && \wget "$1" -O "$TMPFILE" && \printf '%s  %s\n' "$2" "$TMPFILE" | sha256sum -c - && \chmod +x "$TMPFILE" && mv "$TMPFILE" /userdata/jetkvm/jetkvm_app.update && \reboot
This skips the staged rollout. Use it only when the normal update doesn't work.

Extensions

Extensions don't update over the air. They rarely need to; flash them over USB:

ATX Power ControlDC Power Control