Permission denied (os error 13) after pbs and pve update

[Tommi2Day]

After I did my weekly update on pve and pbs, followed by reboot, unfortunately since then all backups are failing with
backup connect failed: command error: Permission denied (os error 13)

How to handle this?

PBS 4.2.0
PVE 9.1.11
pve-manager/9.1.11/8eac2c86f015bdda
linux 7.0.2-3-pve (2026-05-14T16:28Z (all nodes and pbs)

 

[Chris]

Are the datastores backing filesystems mounted correctly in PBS? Any errors in the systemd journal? Further check that the unix owner and permissions are set as expected for the files and folder in the datastore. They should be owned by user backup.