Issue with configuring file backup path Server 2.5.23/Client 2.5.17

Hi.

As always wanted to thank for a great backup tool!

Issue:
I’m trying to backup ARM based system, using filebackups. However on the server, I get “No paths to backup configured” message near to the client, despite that such directory was set.

Steps to reproduce:

  1. Install and configure Server 2.5.23 (Centos 7), and Client 2.5.16 (OSMC, customized Debian, ARM based).
  2. Connect client with server via LAN connection
  3. Set snapshot mechanism to “dattodb” during installation, but then remove values from snapshot.cfg on the client, leaving keys empty, like so:
create_filesystem_snapshot=
remove_filesystem_snapshot=
create_volume_snapshot=
remove_volume_snapshot=
  1. On the server, configure backup path for this particular client. I’ve tried different combinations, but let’s set it to “/”, i.e. root

Expected result:
Server will indicate that this client do not have recent backups and will allow to start full file backup.

Actual result:
Server displays this:

And when I ask to perform full file backup - it does nothing.

Logs when I change settings, as it seems that error is coming from there:
Server:

2022-05-02 16:37:30: msg=UPDATE SETTINGS
2022-05-02 16:37:30: Getting client settings...
2022-05-02 16:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9EnZAue1NCC2e41wLZoyZ+hFj90zoDgsf+34FZ1tgQtRA-- (server)
2022-05-02 16:37:30: Flushing FileClient...
2022-05-02 16:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9FOCdsH9ssm3NS2NNnq0AupQBlJ89ex6tIKCBUZExxECQ-- (server)

Client:

2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#ENC?keyadd=J2QLntTQgtnuNcC2aMmfoQ--&compress=zstd&compress_level=6
2022-05-02 14:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9EnZAue1NCC2e41wLZoyZ+hFj90zoDgsf+34FZ1tgQtRA-- (client)
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#FILESRV
2022-05-02 14:37:30: Start FILESRV thread
2022-05-02 14:37:30: FileSRV received 73
2022-05-02 14:37:30: FileSrv: Received data...
2022-05-02 14:37:30: FileSrv: Received a Packet.
2022-05-02 14:37:30: FileSrv: Sending file (normal) urbackup/settings.cfg metadata_id=0
2022-05-02 14:37:30: FileSrv: Mapped name: /usr/local/var/urbackup/data/settings.cfg
2022-05-02 14:37:30: FileSRV received 21
2022-05-02 14:37:30: FileSrv: Received data...
2022-05-02 14:37:30: FileSrv: Received a Packet.
2022-05-02 14:37:30: Received flush.
2022-05-02 14:37:30: FileSrv: Recv Error in RecvMessage
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#ENC?keyadd=TgnbB/bLJtzUtjTZ6tALqQ--&compress=zstd&compress_level=6
2022-05-02 14:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9FOCdsH9ssm3NS2NNnq0AupQBlJ89ex6tIKCBUZExxECQ-- (client)
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#SETTINGS update_freq_incr.group=86400
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#ENC?keyadd=J2QLntTQgtnuNcC2aMmfoQ--&compress=zstd&compress_level=6
2022-05-02 14:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9EnZAue1NCC2e41wLZoyZ+hFj90zoDgsf+34FZ1tgQtRA-- (client)
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#FILESRV
2022-05-02 14:37:30: Start FILESRV thread
2022-05-02 14:37:30: FileSRV received 73
2022-05-02 14:37:30: FileSrv: Received data...
2022-05-02 14:37:30: FileSrv: Received a Packet.
2022-05-02 14:37:30: FileSrv: Sending file (normal) urbackup/settings.cfg metadata_id=0
2022-05-02 14:37:30: FileSrv: Mapped name: /usr/local/var/urbackup/data/settings.cfg
2022-05-02 14:37:30: FileSRV received 21
2022-05-02 14:37:30: FileSrv: Received data...
2022-05-02 14:37:30: FileSrv: Received a Packet.
2022-05-02 14:37:30: Received flush.
2022-05-02 14:37:30: FileSrv: Recv Error in RecvMessage
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#ENC?keyadd=TgnbB/bLJtzUtjTZ6tALqQ--&compress=zstd&compress_level=6
2022-05-02 14:37:30: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9FOCdsH9ssm3NS2NNnq0AupQBlJ89ex6tIKCBUZExxECQ-- (client)
2022-05-02 14:37:30: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#SETTINGS update_freq_incr.group=86400
update_freq_incr.home=86400
update_freq_incr.client=
update_freq_incr.use=2
update_freq_incr.use_lm=1651497433
update_freq_incr=86400
update_freq_full.group=-3456000
update_freq_full.home=3456000
update_freq_full.client=
update_freq_full.use=1
update_freq_full.use_lm=1651501734
update_freq_full=-3456000
update_freq_image_full.group=-3456000
update_freq_image_full=-3456000
update_freq_image_incr.group=86400
update_freq_image_incr=86400
max_file_incr.group=30
max_file_incr=30
min_file_incr.group=10
min_file_incr=10
max_file_full.group=10
max_file_full=10
min_file_full.group=2
min_file_full=2
min_image_incr.group=10
min_image_incr=10
max_image_incr.group=30
max_image_incr=30
min_image_full.group=1
min_image_full=1
max_image_full.group=3
max_image_full=3
startup_backup_delay.group=60
startup_backup_delay=60
backup_window_incr_file.group=Mon-Fri/20-24,0-7
backup_window_incr_file=Mon-Fri/20-24,0-7
backup_window_full_file.group=Mon-Fri/20-24,0-7
backup_window_full_file=Mon-Fri/20-24,0-7
backup_window_incr_image.group=Mon-Fri/20-24,0-7
backup_window_incr_image=Mon-Fri/20-24,0-7
backup_window_full_image.group=Mon-Fri/20-24,0-7
backup_window_full_image=Mon-Fri/20-24,0-7
exclude_files.group=
exclude_files=
include_files.group=
include_files.home=
include_files.client=
include_files.use=1
include_files.use_lm=1651497751
include_files=
computername.group=
computername=
virtual_clients.group=
virtual_clients=
default_dirs.group=
default_dirs.home=/boot
default_dirs.client=
default_dirs.use=2
default_dirs.use_lm=1651502250
default_dirs=/boot
allow_overwrite.group=true
allow_overwrite=true
backup_dirs_optional.group=true
backup_dirs_optional.home=false
backup_dirs_optional.client=
backup_dirs_optional.use=2
backup_dirs_optional.use_lm=1651497886
backup_dirs_optional=false
allow_config_paths.group=true
allow_config_paths=true
allow_starting_full_file_backups.group=true
allow_starting_full_file_backups=true
allow_starting_incr_file_backups.group=true
allow_starting_incr_file_backups=true
allow_starting_full_image_backups.group=true
allow_starting_full_image_backups=true
allow_starting_incr_image_backups.group=true
allow_starting_incr_image_backups=true
allow_pause.group=true
allow_pause=true
allow_log_view.group=true
allow_log_view=true
allow_overwrite.group=true
allow_overwrite=true
allow_tray_exit.group=true
allow_tray_exit=true
image_letters.group=C
image_letters=C
internet_server=backup.spinov.net
internet_server_def=backup.spinov.net
internet_server_port=55415
internet_server_port_def=55415
internet_server_proxy=
internet_server_proxy_def=
internet_authkey.group=[CENSORED_GROUP_KEY]
internet_authkey=[CENSORED_KEY]
internet_speed.group=-1
internet_speed=-1
local_speed.group=-1
local_speed=-1
internet_client_enabled.group=
internet_client_enabled=
internet_image_backups.group=true
internet_image_backups=true
internet_full_file_backups.group=true
internet_full_file_backups=true
internet_encrypt.group=true
internet_encrypt=true
internet_compress.group=true
internet_compress=true
internet_mode_enabled.group=true
internet_mode_enabled=true
silent_update.group=true
silent_update=true
client_quota.group=
client_quota=
local_full_file_transfer_mode.group=hashed
local_full_file_transfer_mode=hashed
internet_full_file_transfer_mode.group=raw
internet_full_file_transfer_mode=raw
local_incr_file_transfer_mode.group=hashed
local_incr_file_transfer_mode=hashed
internet_incr_file_transfer_mode.group=blockhash
internet_incr_file_transfer_mode=blockhash
local_image_transfer_mode.group=hashed
local_image_transfer_mode=hashed
internet_image_transfer_mode.group=raw
internet_image_transfer_mode=raw
end_to_end_file_backup_verification.group=false
end_to_end_file_backup_verification=false
internet_calculate_filehashes_on_client.group=true
internet_calculate_filehashes_on_client=true
internet_parallel_file_hashing.group=true
internet_parallel_file_hashing=true
image_file_format.group=vhd
image_file_format=vhd
internet_connect_always.group=true
internet_connect_always=true
server_url=
server_url_def=
verify_using_client_hashes.group=false
verify_using_client_hashes=false
internet_readd_file_entries.group=true
internet_readd_file_entries=true
background_backups.group=true
background_backups=true
local_incr_image_style.group=to-full
local_incr_image_style=to-full
local_full_image_style.group=full
local_full_image_style=full
internet_incr_image_style.group=to-full
internet_incr_image_style=to-full
internet_full_image_style.group=synthetic
internet_full_image_style=synthetic
create_linked_user_views.group=false
create_linked_user_views=false
max_running_jobs_per_client.group=1
max_running_jobs_per_client=1
cbt_volumes.group=ALL
cbt_volumes=ALL
cbt_crash_persistent_volumes.group=-
cbt_crash_persistent_volumes=-
ignore_disk_errors.group=false
ignore_disk_errors=false
vss_select_components.group=default=1
vss_select_components=default=1
allow_file_restore.group=true
allow_file_restore=true
allow_component_restore.group=true
allow_component_restore=true
allow_component_config.group=true
allow_component_config=true
file_snapshot_groups.group=
file_snapshot_groups=
image_snapshot_groups.group=
image_snapshot_groups=
internet_file_dataplan_limit.group=5242880
internet_file_dataplan_limit=5242880
internet_image_dataplan_limit.group=2097152
internet_image_dataplan_limit=2097152
alert_script.group=1
alert_script=1
alert_params.group=
alert_params=
archive.group=
archive.home=
archive.client=
archive.use=2
archive.use_lm=1644881973
archive=
client_settings_tray_access_pw.group=
client_settings_tray_access_pw=
local_encrypt.group=false
local_encrypt=false
local_compress.group=false
local_compress=false
download_threads.group=1
download_threads=1
hash_threads.group=1
hash_threads=1
client_hash_threads.group=1
client_hash_threads=1
image_compress_threads.group=0
image_compress_threads=0

2022-05-02 14:37:30: rc=0 hasError=true state=0
2022-05-02 14:37:48: ClientService cmd: PONG
2022-05-02 14:37:48: rc=0 hasError=true state=3
2022-05-02 14:37:48: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#ENC?keyadd=hxpoOEiIrExkVo5SCN9N7w--&compress=zstd&compress_level=6
2022-05-02 14:37:48: Encrypting with key cFzIHRcUS6r6e6ta7lR7bVVok8VHaFQLirgEUuRAO9GHGmg4SIisTGRWjlII303vbVcYnCumJBVPHBCGxQWrFQ-- (client)
2022-05-02 14:37:48: ClientService cmd: #IwlFyK3xgq8wsXfvVFFUt#1CHANNEL capa=0&token=tMvcsnR8c4ReFTm6QnWI&restore_version=1&startup=1&virtual_client=
2022-05-02 14:37:48: New channel: Number of Channels: 1

Looks like some communication issue between client and server according to this message:

2022-05-02 14:37:30: FileSrv: Recv Error in RecvMessage

When I start the backup from server Web UI I get on server I get in server logs:

2022-05-02 16:39:39: msg=START BACKUP FULL

Client is silent.

Other Linux clients (not ARM) are backed up using file backup without issues on the same server.

Please advise.