I obviously had two problems when I opened the previous or original question SANE - Cannot access network scanner - symptom [but not solution]: saned.service fails on start (code=exited, status=1/FAILURE) it was
- the network scanner Brother DCP-J315W could not be reached and
- the saned.service could not be started
Although it is a network scanner after installing the sudo apt-get install libusb-0.1-4 the elementary features worked.
Unfortunately the saned.servicestill does not.
friedrich@friedrich-xyz-15-cs3xxx:~$ brscan-skey -l
DCPJ315W : brother3:net1;dev0 : 192.168.178.23 Active
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ scanimage -L
device brother3:net1;dev0' is a Brother DCP-J315W DCPJ315W devicenet:localhost:brother3:net1;dev0' is a Brother DCP-J315W DCPJ315W
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl status saned.service
Warning: The unit file, source configuration file or drop-ins of saned.service changed on disk. Run 'systemctl daemon-reload' to reload units.
× saned.service - LSB: SANE network scanner server
Loaded: loaded (/etc/init.d/saned; generated)
Active: failed (Result: exit-code) since Tue 2025-02-04 15:38:36 CET; 1h 18min ago
Docs: man:systemd-sysv-generator(8)
CPU: 26ms
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2471]: * Starting SANE network scanner server saned
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: saned (AF-indep+IPv6) from sane-backends 1.2.1-debian starting up
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: do_bindings: [1] bind failed: Address already in use
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: do_bindings: [0] bind failed: Address already in use
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: do_bindings: couldn't bind an address. Exiting.
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: FATAL ERROR; bailing out, waiting for children...
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx saned[2616]: bail_out: all children exited
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Control process exited, code=exited, status=1/FAILURE
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Failed with result 'exit-code'.
Feb 04 15:38:36 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: Failed to start saned.service - LSB: SANE network scanner server.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
Although a number of frontends now can use the brother3 device, the sane-find-scanner does not:
friedrich@friedrich-cxz-Laptop-15-cs3xxx:~$ sudo sane-find-scanner
sane-find-scanner will now attempt to detect your scanner. If the
result is different from what you expected, first make sure your
scanner is powered up and properly connected to your computer.
No SCSI scanners found. If you expected something different, make sure that
you have loaded a kernel SCSI driver for your SCSI adapter.
No USB scanners found. If you expected something different, make sure that
you have loaded a kernel driver for your USB host controller and have setup
the USB system correctly. See man sane-usb for details.
Not checking for parallel port scanners.
Most Scanners connected to the parallel port or other proprietary ports
can't be detected by this program.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
What is the root cause of the saned.service not able to start? Does it use any code from the brother3 scanner installation that can make it break?
In case someone stumbles over
Warning: The unit file, source configuration file or drop-ins of saned.service changed on disk. Run 'systemctl daemon-reload' to reload units.
... the application of daemon-reload after some changes in saned.conf does not help ...
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl restart saned.service
Warning: The unit file, source configuration file or drop-ins of saned.service changed on disk. Run 'systemctl daemon-reload' to reload units.
Job for saned.service failed because the control process exited with error code.
See "systemctl status saned.service" and "journalctl -xeu saned.service" for details.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl daemon-reload
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl restart saned.service
Job for saned.service failed because the control process exited with error code.
See "systemctl status saned.service" and "journalctl -xeu saned.service" for details.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl status saned.service
× saned.service - LSB: SANE network scanner server
Loaded: loaded (/etc/init.d/saned; generated)
Active: failed (Result: exit-code) since Tue 2025-02-04 16:57:50 CET; 14s ago
Docs: man:systemd-sysv-generator(8)
Process: 22417 ExecStart=/etc/init.d/saned start (code=exited, status=1/FAILURE)
CPU: 12ms
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22417]: * Starting SANE network scanner server saned
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: saned (AF-indep+IPv6) from sane-backends 1.2.1-debian starting up
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: do_bindings: [1] bind failed: Address already in use
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: do_bindings: [0] bind failed: Address already in use
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: do_bindings: couldn't bind an address. Exiting.
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: FATAL ERROR; bailing out, waiting for children...
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx saned[22424]: bail_out: all children exited
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Control process exited, code=exited, status=1/FAILURE
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Failed with result 'exit-code'.
Feb 04 16:57:50 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: Failed to start saned.service - LSB: SANE network scanner server.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
Update #1
according to @steeldriver and @waitinator's comments
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo lsof -i
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd 1 root 143u IPv6 25071 0t0 TCP *:sane-port (LISTEN)
avahi-dae 2408 avahi 12u IPv4 26100 0t0 UDP *:mdns
avahi-dae 2408 avahi 13u IPv6 26101 0t0 UDP *:mdns
avahi-dae 2408 avahi 14u IPv4 26102 0t0 UDP *:39159
avahi-dae 2408 avahi 15u IPv6 26103 0t0 UDP *:35019
mta-sts-d 2426 _mta-sts 30u IPv4 22129 0t0 TCP localhost:8461 (LISTEN)
NetworkMa 2461 root 26u IPv4 27512 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:bootpc->fritz.box:bootps
NetworkMa 2461 root 30u IPv6 28115 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx:dhcpv6-client
NetworkMa 2461 root 36u IPv4 31976 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:bootpc->fritz.box:bootps
cupsd 2919 root 7u IPv6 30781 0t0 TCP ip6-localhost:ipp (LISTEN)
cupsd 2919 root 8u IPv4 30782 0t0 TCP localhost:ipp (LISTEN)
dnsmasq 4582 nobody 4u IPv4 33427 0t0 UDP *:bootps
dnsmasq 4582 nobody 6u IPv4 33430 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx:domain
dnsmasq 4582 nobody 7u IPv4 33431 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx:domain (LISTEN)
lxd 5150 root 23u IPv6 37952 0t0 TCP *:8444 (LISTEN)
java 6531 root 70u IPv6 39863 0t0 UDP *:1900
java 6531 root 81u IPv6 42730 0t0 UDP *:1902
java 6531 root 120u IPv6 43245 0t0 TCP *:8443 (LISTEN)
java 6531 root 123u IPv6 38638 0t0 TCP localhost:8101 (LISTEN)
java 6531 root 130u IPv6 42685 0t0 TCP localhost:42459 (LISTEN)
java 6531 root 163u IPv6 43246 0t0 TCP *:http-alt (LISTEN)
java 6531 root 173u IPv6 37707 0t0 UDP *:mdns
java 6531 root 174u IPv6 37711 0t0 UDP *:mdns
java 6531 root 175u IPv6 37715 0t0 UDP *:mdns
java 6531 root 176u IPv6 37719 0t0 UDP *:mdns
java 6531 root 177u IPv6 37723 0t0 UDP *:mdns
java 6531 root 178u IPv6 37727 0t0 UDP *:mdns
java 6531 root 181u IPv6 44269 0t0 TCP *:5007 (LISTEN)
java 6531 root 195u IPv6 39864 0t0 UDP *:1900
java 6531 root 196u IPv6 39865 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:45527
java 6531 root 197u IPv6 39866 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:45577
dnsmasq 6993 lxd 4u IPv4 43146 0t0 UDP *:bootps
dnsmasq 6993 lxd 6u IPv6 43148 0t0 UDP *:dhcpv6-server
dnsmasq 6993 lxd 8u IPv4 43151 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx:domain
dnsmasq 6993 lxd 9u IPv4 43152 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx:domain (LISTEN)
dnsmasq 6993 lxd 10u IPv6 43153 0t0 UDP friedrich-xyz-Laptop-15-cs3xxx:domain
dnsmasq 6993 lxd 11u IPv6 43154 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx:domain (LISTEN)
systemd-r 47596 systemd-resolve 14u IPv4 272422 0t0 UDP _localdnsstub:domain
systemd-r 47596 systemd-resolve 15u IPv4 272423 0t0 TCP _localdnsstub:domain (LISTEN)
systemd-r 47596 systemd-resolve 16u IPv4 272424 0t0 UDP _localdnsproxy:domain
systemd-r 47596 systemd-resolve 17u IPv4 272425 0t0 TCP _localdnsproxy:domain (LISTEN)
firefox 73463 friedrich 131u IPv4 426173 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:43328->104.18.35.23:https (ESTABLISHED)
firefox 73463 friedrich 180u IPv4 407790 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:41126->93.243.107.34.bc.googleusercontent.com:https (ESTABLISHED)
firefox 73463 friedrich 312u IPv4 424832 0t0 TCP friedrich-xyz-Laptop-15-cs3xxx.fritz.box:34802->104.18.35.23:https (ESTABLISHED)
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ sudo systemctl status saned.service
× saned.service - LSB: SANE network scanner server
Loaded: loaded (/etc/init.d/saned; generated)
Active: failed (Result: exit-code) since Tue 2025-02-04 17:05:11 CET; 6h ago
Docs: man:systemd-sysv-generator(8)
CPU: 14ms
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23351]: * Starting SANE network scanner server saned
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: saned (AF-indep+IPv6) from sane-backends 1.2.1-debian starting up
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: do_bindings: [1] bind failed: Address already in use
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: do_bindings: [0] bind failed: Address already in use
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: do_bindings: couldn't bind an address. Exiting.
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: FATAL ERROR; bailing out, waiting for children...
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx saned[23358]: bail_out: all children exited
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Control process exited, code=exited, status=1/FAILURE
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: saned.service: Failed with result 'exit-code'.
Feb 04 17:05:11 friedrich-xyz-Laptop-15-cs3xxx systemd[1]: Failed to start saned.service - LSB: SANE network scanner server.
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ brscan-skey -l
DCPJ315W : brother3:net1;dev0 : 192.168.178.23 Active
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ scanimage -L
device brother3:net1;dev0' is a Brother DCP-J315W DCPJ315W devicenet:localhost:brother3:net1;dev0' is a Brother DCP-J315W DCPJ315W
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
Update #2
the active packages that could provoke a "collission":
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ dpkg -l | grep brscan
ii brscan-skey 0.3.2-0 amd64 Brother Linux scanner S-KEY tool
ii brscan3 0.2.13-1 amd64 Brother Scanner Driver
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ dpkg -l | grep brother
ii brother-udev-rule-type1 1.0.2 all Brother udev rule type 1
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ dpkg -l | grep sane
ii libcommon-sense-perl:amd64 3.75-3build3 amd64 module that implements some sane defaults for Perl programs
ii libimage-sane-perl 5-2build3 amd64 Perl extension for the SANE (Scanner Access Now Easy) Project
ii libsane 1.0.28 all dummy package
ii libsane-common 1.2.1-7build4 all API library for scanners -- documentation and support files
ii libsane-dev:amd64 1.2.1-7build4 amd64 API development library for scanners [development files]
ii libsane-hpaio:amd64 3.23.12+dfsg0-0ubuntu5 amd64 HP SANE backend for multi-function peripherals
ii libsane1:amd64 1.2.1-7build4 amd64 API library for scanners
ii sane 1.0.14-18 amd64 scanner graphical frontends
ii sane-airscan 0.99.29-0ubuntu4 amd64 SANE backend for AirScan (eSCL) and WSD document scanner
ii sane-utils 1.2.1-7build4 amd64 API library for scanners -- utilities
ii xsane 0.999-12ubuntu4 amd64 featureful graphical frontend for SANE (Scanner Access Now Easy)
ii xsane-common 0.999-12ubuntu4 all xsane architecture independent files
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
Update #3
the apt list ...
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$ apt list *sane* --installed
Auflistung… Fertig
libimage-sane-perl/noble,now 5-2build3 amd64 [Installiert,automatisch]
libsane-common/noble,noble,now 1.2.1-7build4 all [Installiert,automatisch]
libsane-dev/noble,now 1.2.1-7build4 amd64 [installiert]
libsane-hpaio/noble,now 3.23.12+dfsg0-0ubuntu5 amd64 [Installiert,automatisch]
libsane1/noble,now 1.2.1-7build4 amd64 [Installiert,automatisch]
libsane/now 1.0.28 all [Installiert,lokal]
sane-airscan/noble,now 0.99.29-0ubuntu4 amd64 [Installiert,automatisch]
sane-utils/noble,now 1.2.1-7build4 amd64 [installiert]
sane/noble,now 1.0.14-18 amd64 [installiert]
xsane-common/noble,noble,now 0.999-12ubuntu4 all [Installiert,automatisch]
xsane/noble,now 0.999-12ubuntu4 amd64 [installiert]
friedrich@friedrich-xyz-Laptop-15-cs3xxx:~$
