$ sudo apt install ./dovecot-*trisquel1_amd64.deb [sudo] password for bandali: Reading package lists... Done Building dependency tree Reading state information... Done Note, selecting 'dovecot-core' instead of './dovecot-core_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb' Note, selecting 'dovecot-imapd' instead of './dovecot-imapd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb' Note, selecting 'dovecot-lmtpd' instead of './dovecot-lmtpd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb' Note, selecting 'dovecot-lucene' instead of './dovecot-lucene_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb' Suggested packages: dovecot-gssapi dovecot-ldap dovecot-managesieved dovecot-mysql dovecot-pgsql dovecot-pop3d dovecot-sieve dovecot-solr dovecot-sqlite dovecot-submissiond ntp ufw The following NEW packages will be installed: dovecot-lucene The following packages will be upgraded: dovecot-core dovecot-imapd dovecot-lmtpd 3 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/3,159 kB of archives. After this operation, 1,012 kB of additional disk space will be used. Get:1 /data/bandali/u/dl/dovecot-lucene/dovecot-lmtpd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb dovecot-lmtpd amd64 1:2.3.7.2-1ubuntu3.2+9.0trisquel1 [25.0 kB] Get:2 /data/bandali/u/dl/dovecot-lucene/dovecot-imapd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb dovecot-imapd amd64 1:2.3.7.2-1ubuntu3.2+9.0trisquel1 [161 kB] Get:3 /data/bandali/u/dl/dovecot-lucene/dovecot-core_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb dovecot-core amd64 1:2.3.7.2-1ubuntu3.2+9.0trisquel1 [2,943 kB] Get:4 /data/bandali/u/dl/dovecot-lucene/dovecot-lucene_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb dovecot-lucene amd64 1:2.3.7.2-1ubuntu3.2+9.0trisquel1 [30.1 kB] [master fdeae22] saving uncommitted changes in /etc prior to apt run 1 file changed, 1 insertion(+), 1 deletion(-) (Reading database ... 241242 files and directories currently installed.) Preparing to unpack .../dovecot-lmtpd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb ... Unpacking dovecot-lmtpd (1:2.3.7.2-1ubuntu3.2+9.0trisquel1) over (1:2.2.33.2-1ubuntu4.6) ... Preparing to unpack .../dovecot-imapd_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb ... Unpacking dovecot-imapd (1:2.3.7.2-1ubuntu3.2+9.0trisquel1) over (1:2.2.33.2-1ubuntu4.6) ... Preparing to unpack .../dovecot-core_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb ... Unpacking dovecot-core (1:2.3.7.2-1ubuntu3.2+9.0trisquel1) over (1:2.2.33.2-1ubuntu4.6) ... Selecting previously unselected package dovecot-lucene. Preparing to unpack .../dovecot-lucene_2.3.7.2-1ubuntu3.2+9.0trisquel1_amd64.deb ... Unpacking dovecot-lucene (1:2.3.7.2-1ubuntu3.2+9.0trisquel1) ... Setting up dovecot-core (1:2.3.7.2-1ubuntu3.2+9.0trisquel1) ... Installing new version of config file /etc/default/dovecot ... Replacing config file /etc/dovecot/dovecot-sql.conf.ext with new version Replacing config file /etc/dovecot/conf.d/10-director.conf with new version Replacing config file /etc/dovecot/conf.d/10-logging.conf with new version Replacing config file /etc/dovecot/conf.d/10-mail.conf with new version Replacing config file /etc/dovecot/conf.d/10-master.conf with new version Replacing config file /etc/dovecot/conf.d/10-ssl.conf with new version Replacing config file /etc/dovecot/conf.d/15-lda.conf with new version Replacing config file /etc/dovecot/conf.d/90-quota.conf with new version Replacing config file /etc/dovecot/conf.d/auth-system.conf.ext with new version invoke-rc.d: syntax error: unknown option "--skip-systemd-native" dpkg: error processing package dovecot-core (--configure): installed dovecot-core package post-installation script subprocess returned error exit status 1 dpkg: dependency problems prevent configuration of dovecot-lucene: dovecot-lucene depends on dovecot-core (= 1:2.3.7.2-1ubuntu3.2+9.0trisquel1); however: Package dovecot-core is not configured yet. dpkg: error processing package dovecot-lucene (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dovecot-lmtpd: dovecot-lmtpd depends on dovecot-core (= 1:2.3.7.2-1ubuntu3.2+9.0trisquel1); however: Package dovecot-core is not configured yet. dpkg: error processing package dovecot-lmtpd (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dovecot-imapd: dovecot-imapd depends on dovecot-core (= 1:2.3.7.2-1ubuntu3.2+9.0trisquel1); however: Package dovecot-core is not configured yet. dpkg: error processing package dovecot-imapd (--configure): dependency problems - leaving unconfigured Processing triggers for ureadahead (0.100.0-21) ... ureadahead will be reprofiled on next reboot Processing triggers for systemd (237-3ubuntu10.42) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Errors were encountered while processing: dovecot-core dovecot-lucene dovecot-lmtpd dovecot-imapd