[Help]: Not able to use backup volume: "The selected backup volume in the network does not support the necessary functions."

[rte2806]

Describe Your Issue or Question

I'm not able to use the backup volume

Expected Behavior

The docker is up and running, TimeMachine on my Mac does see the new volume, but I'm not able to use this volume

Steps to Reproduce

1. Start the container using attached compose file
2. Start TimeMachine on iMac and try to connect new volume

How You're Launching the Container

services:
  timemachine:
    image: mbentley/timemachine:smb
    container_name: timemachine
    hostname: timemachine
    restart: unless-stopped
    networks:
      macnet:
        ipv4_address: '192.168.178.204'
    ports:
      - 137:137/udp
      - 138:138/udp
      - 139:139
      - 445:445
    environment:
      TZ: 'Europe/Berlin'
      CUSTOM_SMB_CONF: "false"
      CUSTOM_USER: "false"
      DEBUG_LEVEL: "1"
      HIDE_SHARES: "no"
      EXTERNAL_CONF: ""
      MIMIC_MODEL: "TimeCapsule8,119"
      TM_USERNAME: "timemachine"
      TM_GROUPNAME: "timemachine"
      TM_UID: "1000"
      TM_GID: "1000"
      PASSWORD: "timemachine"
      SET_PERMISSIONS: "false"
      SHARE_NAME: "TimeMachine_RPI4S"
      SMB_INHERIT_PERMISSIONS: "no"
      SMB_NFS_ACES: "yes"
      SMB_PORT: "445"
      SMB_VFS_OBJECTS: "acl_xattr fruit streams_xattr"
      VOLUME_SIZE_LIMIT: "0"
      WORKGROUP: "WORKGROUP"
    volumes:
      - /mnt/timemachine:/opt/timemachine

networks:
  macnet:
    external:
      name: macnet

Container Logs

INFO: CUSTOM_SMB_CONF=false; generating [global] section of /etc/samba/smb.conf...
INFO: Creating /var/log/samba/cores
INFO: Avahi - generating base configuration in /etc/avahi/services/smbd.service...
INFO: Avahi - adding the 'dk0', 'TimeMachine_RPI4S' share txt-record to /etc/avahi/services/smbd.service...
INFO: Group timemachine doesn't exist; creating...
INFO: User timemachine doesn't exist; creating...
INFO: Using default password: timemachine
chpasswd: password for 'timemachine' changed
INFO: INFO: CUSTOM_SMB_CONF=false; generating [TimeMachine_RPI4S] section of /etc/samba/smb.conf...
INFO: Samba - Created Added user timemachine.
INFO: Samba - Enabled user timemachine.
INFO: Samba - setting password
INFO: SET_PERMISSIONS=false; not setting ownership and permissions for /opt/timemachine
INFO: Avahi - completing the configuration in /etc/avahi/services/smbd.service...
INFO: running test for xattr support on your time machine persistent storage location...
INFO: xattr test successful - your persistent data store supports xattrs
INFO: Detected filesystem for /opt/timemachine is ext4
INFO: entrypoint complete; executing 's6-svscan /etc/s6'
dbus socket not yet available; sleeping...
nmbd version 4.20.6 started.
Copyright Andrew Tridgell and the Samba Team 1992-2024
smbd version 4.20.6 started.
Copyright Andrew Tridgell and the Samba Team 1992-2024
dbus socket not yet available; sleeping...
Found user 'avahi' (UID 86) and group 'avahi' (GID 86).
Successfully dropped root privileges.
avahi-daemon 0.8 starting up.
WARNING: No NSS support for mDNS detected, consider installing nss-mdns!
Loading service file /etc/avahi/services/smbd.service.
Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.178.204.
New relevant interface eth0.IPv4 for mDNS.
Joining mDNS multicast group on interface lo.IPv6 with address ::1.
New relevant interface lo.IPv6 for mDNS.
Joining mDNS multicast group on interface lo.IPv4 with address 127.0.0.1.
New relevant interface lo.IPv4 for mDNS.
Network interface enumeration completed.
Registering new address record for 192.168.178.204 on eth0.IPv4.
Registering new address record for ::1 on lo.*.
Registering new address record for 127.0.0.1 on lo.IPv4.
Server startup complete. Host name is timemachine.local. Local service cookie is 1039498478.
Service "timemachine" (/etc/avahi/services/smbd.service) successfully established.
become_local_master_stage2: *****
Samba name server TIMEMACHINE is now a local master browser for workgroup WORKGROUP on subnet 192.168.178.204
*****

Time Machine client logs

No response

Time Machine client diagnostics logs using The Time Machine Mechanic

No response

Additional host information

No response

Additional Context

No response

[mbentley]

Can you provide logs from the client as requested in the issue form? I can’t help without further data.

[rte2806]

Dear Matt, Many thanks for your quick response. I found these entries: ``` 2025-02-23 14:01:38 Choosing destination volume 2025-02-23 14:01:40 Prepare destination 2025-02-23 14:01:40 NetAuth session for 'smb://timemachine._smb._tcp.local./TimeMachine_RPI4S' will use options: { AuthType = Time AuthType = TimeMachine; 2025-02-23 14:01:40 Reporting preparation progress message: '„TimeMachine_RPI4S“ von „timemachine.local“ aktivieren …', fractionDone: nil 2025-02-23 14:01:41 Limiting logging for limit: aFewTimes key: "map auto_home" 2025-02-23 14:01:41 Failed to refresh menu extra items. Error: Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory" 2025-02-23 14:01:55 Limiting logging for limit: aFewTimes key: "map auto_home" 2025-02-23 14:01:57 NAOpenSessionAsync reports sessionStatus: 0, sessionInfo: { 2025-02-23 14:01:57 Mounting share 'TimeMachine_RPI4S' with options: { TimeMachineMoun TimeMachineMount = 1; 2025-02-23 14:01:58 NAMountAsync reports mountStatus: 0, mountInfo: { MountPath = "/V MountPath = "/Volumes/TimeMachine_RPI4S"; 2025-02-23 14:01:58 Reporting preparation progress message: 'Funktionen von „TimeMachine_RPI4S“ von „timemachine.local“ überprüfen …', fractionDone: nil 2025-02-23 14:01:58 Initial network volume options for 'TimeMachine_RPI4S' {disablePrimaryReconnect: 0, disableSecondaryReconnect: 0, reconnectTimeOut: 0, QoS: 0x0, attributes: 0x1C} 2025-02-23 14:01:58 Failed to configure network volume options for 'TimeMachine_RPI4S', error: 45 Operation not supported 2025-02-23 14:01:58 Backup images not supported or failed to configure reconnect settings for '/Volumes/TimeMachine_RPI4S' 2025-02-23 14:01:58 Mountpoint '/Volumes/TimeMachine_RPI4S' is still valid 2025-02-23 14:01:58 Unmounting '/Volumes/TimeMachine_RPI4S' 2025-02-23 14:01:58 Reporting preparation error: Error Domain=com.apple.TimeMachine.SettingsExtension Code=3 "Das ausgewählte Backup-Volume im Netzwerk unterstützt die notwendigen Funktionen nicht." UserInfo={NSLocalizedDescription=Das ausgewählte Backup-Volume im Netzwerk unterstützt die notwendigen Funktionen nicht., NSLocalizedRecoverySuggestion=Stelle sicher, dass für dieses Volume die Unterstützung für Time Machine auf dem Server aktiviert ist, oder wähle ein anderes Netzwerk-Backup-Volume aus.} 2025-02-23 14:01:58 Unmounted '/Volumes/TimeMachine_RPI4S‘ ``` Hoping this will help you. Kind regards, Rainer