Unauthorized to access source folder

Support
1

hello,

I am getting ‘Unauthorized to access source folder’ on my external drive folders.

System.IO.IOException: Unauthorized to access source folder /media/kpoxo6op/TOURO Mobile USB3.0/phone/, aborting backup
  at Duplicati.Library.Main.Controller.ExpandInputSources (System.String[] inputsources, Duplicati.Library.Utility.IFilter filter) [0x002b7] in <e60bc008dd1b454d861cfacbdd3760b9>:0 
  at Duplicati.Library.Main.Controller+<>c__DisplayClass14_0.<Backup>b__0 (Duplicati.Library.Main.BackupResults result) [0x0001d] in <e60bc008dd1b454d861cfacbdd3760b9>:0 
  at Duplicati.Library.Main.Controller.RunAction[T] (T result, System.String[]& paths, Duplicati.Library.Utility.IFilter& filter, System.Action`1[T] method) [0x0026f] in <e60bc008dd1b454d861cfacbdd3760b9>:0 
  at Duplicati.Library.Main.Controller.Backup (System.String[] inputsources, Duplicati.Library.Utility.IFilter filter) [0x00074] in <e60bc008dd1b454d861cfacbdd3760b9>:0 
  at Duplicati.Server.Runner.Run (Duplicati.Server.Runner+IRunnerData data, System.Boolean fromQueue) [0x00349] in <156011ea63b34859b4073abdbf0b1573>:0

My backup configuration displays warnings:
image

Info:
I can write to my external drive normally
Last successful backup: 08/25/2021 (long time ago)
My OS is Ubuntu 22.

How to I resolve this?

2

Are you running Duplicati natively on the host machine, or are you using docker? In either case, what privilege level is Duplicati running under?

I personally let Duplicati run as root so it has simple access to all the files I want to back up. If you are running it as a non-root user, you need to make sure your filesystem permissions allow access by the Duplicati user.