1.5

Added support for backing up removable drives (i.e. external USB disks). It's now possible to define a backup source by it's Volume label, device Serial Number, or the hardware Name.

WARNING If you have been previously backing up multiple drives, the default forget policy was likely pruning backup sets too aggressively and could lead to data loss. You must update your $SnapshotRetentionPolicy to include @("--group-by", "host,tags", ... to avoid pruning an entire drive's contents inadvertently!

Fixes

• Updated default snapshot forget/prune retention policy to group by "host,tags" to prevent major data loss. Only configurations with multiple $BackupSources are impacted by this change.
• Added tags to each backup source to support grouping by tags. For existing backup sets, this change will result in a slightly longer backup the first time this updated script is run.

Enhancements

• External, removable disk drives (i.e. USB hard drives) can be identified by their Volume Label, Serial Number, or Device Name. For example, if you have an external device with the Volume Label "MY BOOK", you can define a backup source as $BackupSources["MY BOOK"]. I would recommend using the device serial number to identify external drives to backup, which you can find using the Powershell get-disk command.
• Add the ability to $IgnoreMissingBackupSources. To make sure that errors are not thrown if the device is not present, there is now an option to ignore error reporting when a folder and entire backup source are missing. When $true, missing external drives or folders don't produce errors. When $null or $false, missing drives and/or folders result in an error. The default is set to $false as not to silently fail backing up a source.
• Updated install script to download Restic 0.12.1