What does the OCT setup wizard back up?

During the setup wizard, OCT creates full partition-level backups on the USB stick plugged into your SoundTouch device. You'll find them in /media/sda1/oct-backup/:

The wizard also saves individual config files as .bak:

• SoundTouchSdkPrivateCfg.xml.bak — the cloud URL config
• hosts.bak — the DNS override file

Partition Layout (ST10, Firmware 27.x)

The root filesystem is mounted read-only during normal operation. You must remount it before writing.

Full Restore (all partitions)

Prerequisites

• USB stick with oct-backup/ folder plugged into the speaker
• SSH access enabled (same remote_services USB trick used during setup)

Steps

1. SSH into the device:

ssh -oHostKeyAlgorithms=ssh-rsa root@<SPEAKER-IP>

2. Verify USB is mounted:

grep '/media/' /proc/mounts
ls -la /media/sda1/oct-backup/

3. Restore /mnt/nv (persistent data — presets, WiFi, tokens):

Already writable, no remount needed:

cd / && tar xzf /media/sda1/oct-backup/soundtouch-nv.tgz

4. Restore /mnt/update (firmware cache):

Also writable by default:

tar xzf /media/sda1/oct-backup/soundtouch-update.tgz

5. Restore rootfs (system partition):

Root is read-only — remount first:

rw || mount -o remount,rw /
cd / && tar xzf /media/sda1/oct-backup/soundtouch-rootfs.tgz
mount -o remount,ro /

The rw shortcut exists on some firmware versions. mount -o remount,rw / is the universal fallback.

6. Reboot:

reboot

Device restarts with original factory config. Give it ~60 seconds to fully boot.

Quick Restore (config only — undo OCT setup)

If you only want to revert OCT's config changes (cloud URLs + DNS overrides), you don't need a full restore:

rw || mount -o remount,rw /
cp /media/sda1/oct-backup/SoundTouchSdkPrivateCfg.xml.bak /opt/Bose/etc/SoundTouchSdkPrivateCfg.xml
cp /media/sda1/oct-backup/hosts.bak /etc/hosts
mount -o remount,ro /
reboot

After reboot, the device points back to the original Bose cloud servers.

Can I restore from the OCT web UI?

Partially. The Setup Wizard (Step 8) has config and hosts restore buttons for the quick restore. But full partition-level restore is SSH-only — the web UI doesn't support extracting tar archives onto the device.

What if I lost my USB stick / backups?

1. Factory reset via the device's physical buttons (refer to Bose support docs for your model)
2. Manual config editing — if you know what OCT changed, you can manually revert the XML config and /etc/hosts