Log into the command line of a preferably new TurnKey installation, as user root (e.g., via the console, SSH or web shell) and follow these steps:
1. Initialize TKLBAM (required for appliances not launched using the Hub) by providing it with the Hub API Key (for example):
tklbam-init YOUR_HUB_APIKEY
2. Restore this backup:
tklbam-restore BACKUP_ID
If this backup's secret key is protected with a passphrase you will be asked to provide it.
If something goes wrong, you can easily rollback to the last pre-restore snapshot:
tklbam-restore-rollback