Package: postfix Version: 3.5.0-2 Severity: normal This morning one of my test systems automaticallt installed 3.5.0-2 and then postfix didn't run. The command "/etc/init.d/postfix restart" resulted in postfix not running and nothing being logged.
Apr 19 06:56:12 sevm postfix/master[913]: terminating on signal 15 The last log entry in mail.log was the above, after that restarting postfix did nothing. root@sevm:~# systemctl status system-postfix.slice ● system-postfix.slice Loaded: loaded Active: active since Thu 2020-04-16 05:36:41 AEST; 3 days ago Tasks: 0 Memory: 600.0K CGroup: /system.slice/system-postfix.slice Apr 16 05:46:56 sevm postfix/qmgr[915]: 0096A21A06B: removed Apr 17 07:02:03 sevm postfix/pickup[54977]: 4B55D21B95F: uid=106 from=<mon> Apr 17 07:02:03 sevm postfix/cleanup[61425]: 4B55D21B95F: message-id=<202004162> Apr 17 07:02:04 sevm postfix/qmgr[915]: 4B55D21B95F: from=<m...@sevm.coker.com.a> Apr 17 07:02:06 sevm postfix/smtp[61429]: 4B55D21B95F: to=<russell+nagios@coker> Apr 17 07:02:06 sevm postfix/qmgr[915]: 4B55D21B95F: removed Apr 19 06:56:11 sevm postfix[218529]: Postfix is running with backwards-compati> Apr 19 06:56:11 sevm postfix[218529]: See http://www.postfix.org/COMPATIBILITY_> Apr 19 06:56:11 sevm postfix[218529]: To disable backwards compatibility use "p> Apr 19 06:56:12 sevm postfix/master[913]: terminating on signal 15 Above is the status of the system-postfix.slice at the time of the problem, it said 0 tasks running. I restarted the slice and then got the below result. I don't know if the upgrade process should have restarted the slice. The expected result is that the sysadmin runs "/etc/init.d/postfix restart" and it just works. root@sevm:~# systemctl restart system-postfix.slice root@sevm:~# systemctl status system-postfix.slice ● system-postfix.slice Loaded: loaded Active: active since Sun 2020-04-19 10:15:03 AEST; 3s ago Tasks: 0 Memory: 0B CGroup: /system.slice/system-postfix.slice Apr 19 10:15:03 sevm systemd[1]: Removed slice system-postfix.slice. Apr 19 10:15:03 sevm systemd[1]: Stopping system-postfix.slice. Apr 19 10:15:03 sevm systemd[1]: Created slice system-postfix.slice. root@sevm:~# /etc/init.d/postfix restart Restarting postfix (via systemctl): postfix.service. root@sevm:~# systemctl status system-postfix.slice ● system-postfix.slice Loaded: loaded Active: active since Sun 2020-04-19 10:15:03 AEST; 16s ago Tasks: 6 Memory: 6.6M CGroup: /system.slice/system-postfix.slice └─postfix@-.service ├─230964 /usr/lib/postfix/sbin/master -w ├─230965 pickup -l -t unix -u -c ├─230966 qmgr -l -t unix -u ├─230968 cleanup -z -t unix -u -c ├─230969 trivial-rewrite -n rewrite -t unix -u -c └─230974 smtp -t unix -u -c -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 5.5.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: SELinux: enabled - Mode: Enforcing - Policy name: default Versions of packages postfix depends on: ii adduser 3.118 ii cpio 2.13+dfsg-2 ii debconf [debconf-2.0] 1.5.73 ii dpkg 1.19.7 ii e2fsprogs 1.45.6-1 ii libc6 2.30-4 ii libdb5.3 5.3.28+dfsg1-0.6 ii libicu63 63.2-3 ii libsasl2-2 2.1.27+dfsg-2 ii libssl1.1 1.1.1f-1 ii lsb-base 11.1.0 ii netbase 6.1 ii ssl-cert 1.0.39 Versions of packages postfix recommends: ii ca-certificates 20190110 ii python3 3.8.2-3 Versions of packages postfix suggests: ii bsd-mailx [mail-reader] 8.1.2-0.20180807cvs-1+b1 ii libsasl2-modules 2.1.27+dfsg-2 ii mutt [mail-reader] 1.13.2-1 pn postfix-cdb <none> pn postfix-doc <none> pn postfix-ldap <none> pn postfix-lmdb <none> pn postfix-mysql <none> pn postfix-pcre <none> pn postfix-pgsql <none> ii postfix-sqlite 3.5.0-2 ii procmail 3.22-26 pn resolvconf <none> pn ufw <none> -- Configuration Files: /etc/rsyslog.d/postfix.conf changed: -- debconf information: postfix/retry_upgrade_warning: postfix/compat_conversion_warning: true postfix/destinations: sevm.coker.com.au, localhost.coker.com.au, localhost postfix/sqlite_warning: postfix/mynetworks: 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 postfix/bad_recipient_delimiter: postfix/root_address: postfix/relayhost: postfix/mydomain_warning: postfix/lmtp_retired_warning: true postfix/kernel_version_warning: postfix/protocols: all postfix/main_cf_conversion_warning: true postfix/not_configured: * postfix/mailname: sexen.coker.com.au postfix/procmail: true postfix/recipient_delim: + postfix/relay_restrictions_warning: postfix/chattr: false * postfix/main_mailer_type: Local only postfix/newaliases: false postfix/dynamicmaps_conversion_warning: postfix/mailbox_limit: 0 postfix/tlsmgr_upgrade_warning: postfix/rfc1035_violation: false