Troubleshooting

PBS Backup Proxy Fails to Start

Overview

• This issue affects the ability for the user to log into the GUI / API
• SSH access still works
• In previous experience, this was due to mnt-synology_backups.mnt unit failing to start

Triage

1. Log into PBS via SSH or VM console
2. systemctl status shows 1 failed unit
3. systemctl list-units --state=failed shows mnt-synology_backups.mount unit failed to start
   • proxmox-backup.service depends on mnt-synology_backups.mount to start
4. Try running mount -a and receive permission denied from NAS
5. SSH into NAS and sudo su -
   • systemctl restart nfs-mountd.service
   • systemctl restart nfs-server.service
     
6. Return to PBS SSH session and try mount -a again and it works
7. Reboot PBS
8. Log back in and run mount | grep nfs and verify auto-mount works