Tobias GesellchenandClaude Opus 4.7
596e24595d
Lifts the back-and-forth in issue #250 into the README so the next user doesn't repeat the same three traps Gustour hit: 1. The `ssh -L 8000:localhost:8000` command must run on the user's own machine, NOT inside the speaker's SSH session. Gustour pasted it at the speaker's `root@mojo:~#` prompt; the tunnel ended up speaker → speaker (loopback) and did nothing. 2. SoundTouch firmware offers only ssh-rsa/ssh-dss host-key algorithms; modern OpenSSH refuses them by default with `Unable to negotiate with <ip> port 22: no matching host key type found`. The README's *initial* ssh command already uses `-oHostKeyAlgorithms=+ssh-rsa`, but the port-forward example didn't — adding it. 3. If the tunnel is correct and the browser still gets ERR_CONNECTION_RESET, the daemon isn't listening. The previous README left the user stranded here. Adds the diagnostic ladder (`netstat`, `ps`, `logread | grep aftertouch`) that matches the syslog-tag pattern shipped in the prior commit, plus the `/etc/init.d/aftertouch start` + `status` retry — the new status case can now distinguish "PID alive, listener up" from "PID alive, listener silently died". No script changes; pure docs lift. Refs #250. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
5.5 KiB
On-Device Installer
Allows to run AfterTouch on SoundTouch devices directly, eliminating the need to run and maintain a separate server on the local network.
Disclaimer
Invasiveness
AfterTouch usually normally migrates the SoundTouch devices very noninvasive, by changing the configuration of the device. Running AfterTouch on the device itself is slightly more invasive, because it needs to create a script that starts AfterTouch on boot.
AfterTouch Availability
Some devices will expose the AfterTouch port, some won't. We currently (May 2026) suspect that the newer generation devices (those with Bluetooth) will expose the port, while the older ones won't. We're still investigating how to expose AfterTouch on all devices.
If your device doesn't expose the port, you can still use the on-device installer, but you'll need to run AfterTouch on each one of your speakers individually and may only access AfterTouch via ssh port forwarding. This will also make OAuth authentication a little more tricky, but should also work via SSH port forwarding.
Space Limitation
The storage space on the SoundTouch devices is very limited — stock rootfs typically has only a few MB free (e.g. ~4 MB on the ST20, see issue #268), well below the AfterTouch binary's ~12 MB. To work around this, the installer puts everything on /mnt/nv/aftertouch by default (the persistent partition, typically ~30 MB free) and points /opt/aftertouch at it via a symlink so the init script and runtime paths stay unchanged. Override the install target with INSTALL_DIR=/some/path if you've got room elsewhere.
The space limitation also means we are currently unsure on how to update the system, because two binaries are already too large. We are currently working on this - both by checking how we can make the binaries smaller, but also on how we can extend the storage space (e.g. by running AfterTouch from a USB drive).
Logs
The daemon writes to BusyBox syslog (tagged aftertouch) rather than to a file. Disk usage stays bounded — the syslog ring buffer is in memory — and the same logread recipe used elsewhere in this project works:
logread | grep aftertouch | tail -20 # recent entries
logread -f | grep aftertouch # live tail
If the install command reports "running but :8000 not responding" or aftertouch status reports the listener is down, the syslog tail is the first place to look.
Installation
Enable SSH on your SoundTouch device using the usual "Stick with remote_services" method. Connect with the following command.
ssh -oHostKeyAlgorithms=+ssh-rsa root@<IP_ADDRESS_OF_SPEAKER>
Then, run the following command to install AfterTouch on the device.
rw && curl -sSL https://raw.githubusercontent.com/gesellix/Bose-SoundTouch/main/scripts/on-device-install/install.sh | sh
After the installation check if you can access AfterTouch from your local device by navigating to http://<IP_ADDRESS_OF_SPEAKER>:8000. If you can access the AfterTouch UI, you're good to go!
If http://<IP_ADDRESS_OF_SPEAKER>:8000 fails: SSH port forwarding
Some firmware images only bind the AfterTouch HTTP port to loopback (see issue #196). The workaround is an SSH tunnel — your machine talks to its own local :8000, the SSH connection forwards to the speaker's :8000 on loopback.
Open a fresh terminal on your own machine (Linux/macOS/Windows — NOT another shell inside the speaker's SSH session — see issue #250 for the trap that catches everyone here) and run:
ssh -oHostKeyAlgorithms=+ssh-rsa -L 8000:localhost:8000 root@<IP_ADDRESS_OF_SPEAKER>
The -oHostKeyAlgorithms=+ssh-rsa flag is required: SoundTouch speakers offer only legacy SSH host-key algorithms (ssh-rsa, ssh-dss) that modern OpenSSH clients refuse by default. Without it you'll see Unable to negotiate with <ip> port 22: no matching host key type found.
Leave that terminal open while you use AfterTouch. With the tunnel up, navigate to http://localhost:8000 in your browser (localhost, not the speaker's IP).
If the tunnel is open but http://localhost:8000 still fails
You should see ERR_CONNECTION_RESET in the browser and channel N: open failed: connect failed: Connection refused in the SSH terminal — that means the tunnel itself works, but the AfterTouch daemon isn't listening on the speaker. Inside the SSH session, check:
netstat -tlnp 2>/dev/null | grep 8000 # is anything listening?
ps | grep -i aftertouch # is the daemon running at all?
logread | grep aftertouch | tail -20 # recent daemon output (panics, errors)
If the daemon isn't running, restart it:
/etc/init.d/aftertouch start
/etc/init.d/aftertouch status
The init script's status now distinguishes "running with listener up" from "PID alive but listener silently died" — if you get the latter, the syslog tail above will tell you why.
Updating AfterTouch
To update AfterTouch, simply run the installation command again. The installer will check if there's a new version available and update it if necessary.
Uninstallation
Before uninstall, you might want to revert the migration, especially the changes to the server URLs (even though having configured an unresponsive local server probably is about as bad as having configured unresponsive Bose servers). To uninstall AfterTouch, run the following command on the speaker.
curl -sSL https://raw.githubusercontent.com/gesellix/Bose-SoundTouch/main/scripts/on-device-install/uninstall.sh | sh