Migrating a postfix/dovecot installation

[Christoph Kukulies]

I'm about to migrate my system (overdue) from Ubuntu 18.04 to Ubuntu (22.04 64bit).
The node is existing. Now I'm at the point how to migrate my postfix/dovecot installation.

I installed postfix first with the "no configuration" option (planning to move over the config files afterwards).
 What do I need from dovecot?

This is what my old system has installed from dovecot:

dovecot-antispam/bionic,now 2.0+20170109-1build2 i386 [installed]
dovecot-core/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-dev/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-gssapi/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-imapd/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-ldap/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-lmtpd/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-managesieved/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-metadata-plugin/bionic 14+20131027-0ubuntu2 i386
dovecot-mysql/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-pgsql/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-pop3d/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-sieve/bionic-updates,bionic-security,now 1:2.2.33.2-1ubuntu4.8 i386 [installed]
dovecot-solr/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
dovecot-sqlite/bionic-updates,bionic-security 1:2.2.33.2-1ubuntu4.8 i386
fusiondirectory-plugin-dovecot/bionic-updates 1.0.19-1ubuntu0.18.04.1 all
fusiondirectory-plugin-dovecot-schema/bionic-updates 1.0.19-1ubuntu0.18.04.1 all
libplack-middleware-methodoverride-perl/bionic 0.15-1 all
mysqmail-dovecot-logger/bionic 0.4.9-10.2 i386

This is what is installed from spamassasin:

claws-mail-spamassassin/bionic 3.16.0-1 i386
evolution-plugin-spamassassin/bionic-updates 3.28.5-0ubuntu0.18.04.2 i386
fusiondirectory-plugin-spamassassin/bionic-updates 1.0.19-1ubuntu0.18.04.1 all
fusiondirectory-plugin-spamassassin-schema/bionic-updates 1.0.19-1ubuntu0.18.04.1 all
spamass-milter/bionic 0.4.0-1 i386
spamassassin/bionic-updates,bionic-security,now 3.4.2-0ubuntu0.18.04.5 all [installed]
spamassassin-heatu/bionic 3.02+20101108-2 all
spamassassin-rules-ja/bionic 9ubuntu1 all


Any clues? What else do I need?

Thanks in advance,

Christoph



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