Not sure what has happened but yesterday, I removed the commented lines in «/lib/systemd/system/[email protected]», that is, back to the original Debian's 12 stock file and HylaFAX service and modems and working fine:
root@stt005:~# cat /lib/systemd/system/[email protected] [Unit] Description=HylaFAX faxgetty %I BindsTo=dev-%i.device After=dev-%i.device [Service] ExecStart=/usr/sbin/faxgetty %i BindPaths=/etc/hylafax:/var/spool/hylafax/etc WorkingDirectory=/var/spool/hylafax Restart=on-failure [Install] WantedBy=multi-user.target root@stt005:~# systemctl status faxgetty@*.service ● [email protected] - HylaFAX faxgetty ttyS1 Loaded: loaded (/lib/systemd/system/[email protected]; enabled; preset: enabled) Active: active (running) since Sun 2024-09-15 05:19:30 CEST; 6h ago Main PID: 419 (faxgetty) Tasks: 1 (limit: 9507) Memory: 1.0M CPU: 91ms CGroup: /system.slice/system-faxgetty.slice/[email protected] └─419 /usr/sbin/faxgetty ttyS1 ● [email protected] - HylaFAX faxgetty ttyS0 Loaded: loaded (/lib/systemd/system/[email protected]; enabled; preset: enabled) Active: active (running) since Sun 2024-09-15 05:19:30 CEST; 6h ago Main PID: 418 (faxgetty) Tasks: 1 (limit: 9507) Memory: 2.0M CPU: 96ms CGroup: /system.slice/system-faxgetty.slice/[email protected] └─418 /usr/sbin/faxgetty ttyS0 sep 15 05:19:30 stt005 systemd[1]: Started [email protected] - HylaFAX faxgetty ttyS0. sep 15 05:19:33 stt005 FaxGetty[418]: OPEN /dev/ttyS0 HylaFAX (tm) Version 6.0.7 sep 15 05:19:43 stt005 FaxGetty[418]: MODEM ACF3_V1.088-V90_P21_FSH 56000/ root@stt005:~# journalctl -b0 | grep -i fax sep 15 05:19:21 stt005 systemd[1]: Created slice system-faxgetty.slice - Slice /system/faxgetty. sep 15 05:19:30 stt005 systemd[1]: Started [email protected] - HylaFAX faxgetty ttyS0. sep 15 05:19:30 stt005 systemd[1]: Started [email protected] - HylaFAX faxgetty ttyS1. sep 15 05:19:31 stt005 systemd[1]: Starting hylafax.service - HylaFAX... sep 15 05:19:31 stt005 systemd[1]: Finished hylafax.service - HylaFAX. sep 15 05:19:31 stt005 systemd[1]: Starting faxq.service - HylaFAX queue manager process for outbound facsimile jobs... sep 15 05:19:32 stt005 systemd[1]: Started hfaxd.service - HylaFAX client-server protocol server. sep 15 05:19:33 stt005 systemd[1]: Started faxq.service - HylaFAX queue manager process for outbound facsimile jobs. sep 15 05:19:33 stt005 FaxQueuer[478]: HylaFAX (tm) Version 6.0.7 sep 15 05:19:33 stt005 FaxQueuer[478]: Copyright (c) 1990-1996 Sam Leffler sep 15 05:19:33 stt005 FaxQueuer[478]: Copyright (c) 1991-1996 Silicon Graphics, Inc. sep 15 05:19:33 stt005 HylaFAX[452]: Listening to 0.0.0.0:4559 sep 15 05:19:33 stt005 HylaFAX[452]: HylaFAX INET Protocol Server: restarted. sep 15 05:19:33 stt005 HylaFAX[452]: HylaFAX SNPP Protocol Server: restarted. sep 15 05:19:33 stt005 FaxGetty[419]: OPEN /dev/ttyS1 HylaFAX (tm) Version 6.0.7 sep 15 05:19:33 stt005 FaxGetty[418]: OPEN /dev/ttyS0 HylaFAX (tm) Version 6.0.7 sep 15 05:19:43 stt005 FaxGetty[418]: MODEM ACF3_V1.088-V90_P21_FSH 56000/ sep 15 05:19:43 stt005 FaxGetty[419]: MODEM ACF3_V1.088-V90_P21_FSH 56000/ sep 15 05:20:50 stt005 systemd[1]: Dependency failed for [email protected] - HylaFAX faxgetty 192.168.0.5. sep 15 05:20:50 stt005 systemd[1]: [email protected]: Job [email protected]/start failed with result 'dependency'. sep 15 08:48:35 stt005 HylaFAX[1383]: `-> Got a: 127.0.0.1[13] sep 15 08:48:35 stt005 HylaFAX[1383]: `-> Got a: 42455[19] So, sorry for the noise. I cannot reproduce this bug anymore. Cheers, -- Camaleón

