root@diorite:~# systemctl restart kea-dhcp4-server.service; journalctl -xeu kea-dhcp4-server --no-pager -n19
Feb 19 14:03:25 diorite strace[3188]: 2026-02-19 14:03:25.388 INFO  [kea-dhcp4.dhcp4/3188.281473818486656] DHCP4_STARTING Kea DHCPv4 server version 2.4.1 (stable) starting
Feb 19 14:03:25 diorite kea-dhcp4[3188]: INFO  HOSTS_BACKENDS_REGISTERED the following host backend types are available: mysql postgresql
Feb 19 14:03:25 diorite kea-dhcp4[3188]: WARN  DHCPSRV_MT_DISABLED_QUEUE_CONTROL disabling dhcp queue control when multi-threading is enabled.
Feb 19 14:03:25 diorite kea-dhcp4[3188]: WARN  DHCP4_RESERVATIONS_LOOKUP_FIRST_ENABLED Multi-threading is enabled and host reservations lookup is always performed first.
Feb 19 14:03:25 diorite strace[3184]: openat(AT_FDCWD, "/usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so", O_RDONLY|O_CLOEXEC) = 7
Feb 19 14:03:25 diorite strace[3184]: read(7, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
Feb 19 14:03:25 diorite strace[3184]: fstat(7, {st_mode=S_IFREG|0755, st_size=19679656, ...}) = 0
Feb 19 14:03:25 diorite strace[3184]: mmap(0xffffb67a0000, 925312, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 7, 0) = 0xffffb67a0000
Feb 19 14:03:25 diorite strace[3184]: mmap(0xffffb687d000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 7, 0xcd000) = 0xffffb687d000
Feb 19 14:03:25 diorite strace[3184]: close(7)                                = 0
Feb 19 14:03:25 diorite kea-dhcp4[3188]: ERROR HOOKS_OPEN_ERROR failed to open hook library /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so: libkea-dhcpsrv.so.145: cannot open shared object file: No such file or directory
Feb 19 14:03:25 diorite kea-dhcp4[3188]: ERROR DHCP4_PARSER_FAIL failed to create or run parser for configuration element hooks-libraries: hooks libraries failed to validate - library or libraries in error are: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so (/etc/kea/kea-dhcp4.conf:258:5)
Feb 19 14:03:25 diorite kea-dhcp4[3188]: ERROR DHCP4_CONFIG_LOAD_FAIL configuration error using file: /etc/kea/kea-dhcp4.conf, reason: hooks libraries failed to validate - library or libraries in error are: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so (/etc/kea/kea-dhcp4.conf:258:5)
Feb 19 14:03:25 diorite kea-dhcp4[3188]: ERROR DHCP4_INIT_FAIL failed to initialize Kea server: configuration error using file '/etc/kea/kea-dhcp4.conf': hooks libraries failed to validate - library or libraries in error are: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so (/etc/kea/kea-dhcp4.conf:258:5)
Feb 19 14:03:25 diorite strace[3188]: 2026-02-19 14:03:25.395 ERROR [kea-dhcp4.dhcp4/3188.281473818486656] DHCP4_INIT_FAIL failed to initialize Kea server: configuration error using file '/etc/kea/kea-dhcp4.conf': hooks libraries failed to validate - library or libraries in error are: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so (/etc/kea/kea-dhcp4.conf:258:5)
Feb 19 14:03:25 diorite strace[3184]: +++ exited with 1 +++
Feb 19 14:03:25 diorite systemd[1]: kea-dhcp4-server.service: Main process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ An ExecStart= process belonging to unit kea-dhcp4-server.service has exited.
░░ 
░░ The process' exit code is 'exited' and its exit status is 1.
Feb 19 14:03:25 diorite systemd[1]: kea-dhcp4-server.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ The unit kea-dhcp4-server.service has entered the 'failed' state with result 'exit-code'.
Feb 19 14:03:33 diorite systemd[1]: Started kea-dhcp4-server.service - Kea IPv4 DHCP daemon.
░░ Subject: A start job for unit kea-dhcp4-server.service has finished successfully
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ A start job for unit kea-dhcp4-server.service has finished successfully.
░░ 
░░ The job identifier is 4955.