Package: postfix Version: 3.1.6-0+deb9u1 Severity: important Hi,
While upgrading from Debian 8 to Debian 9/stretch. We've got postfix 2.11.3-1+deb8u2 installed. This is what happens now: root@pacioli:~# aptitude -V full-upgrade The following packages will be upgraded: postfix [2.11.3-1+deb8u2 -> 3.1.6-0+deb9u1] The following partially installed packages will be configured: python-support 1 packages upgraded, 0 newly installed, 0 to remove and 2 not upgraded. Need to get 0 B/1,435 kB of archives. After unpacking 356 kB will be used. Do you want to continue? [Y/n/?] Reading changelogs... Done Preconfiguring packages ... (Reading database ... 43722 files and directories currently installed.) Preparing to unpack .../postfix_3.1.6-0+deb9u1_amd64.deb ... aborting postfix install dpkg: error processing archive /var/cache/apt/archives/postfix_3.1.6-0+deb9u1_amd64.deb (--unpack): subprocess new pre-installation script returned error exit status 1 Errors were encountered while processing: /var/cache/apt/archives/postfix_3.1.6-0+deb9u1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) root@pacioli:~# The fact no other message than "aborting postfix install" is displayed is unhelpful. This failing might be related to my debconf state; I have in /var/cache/debconf/config.dat : Name: postfix/compat_conversion_warning Template: postfix/compat_conversion_warning Value: false Owners: postfix Flags: seen Name: postfix/main_mailer_type Template: postfix/main_mailer_type Value: No configuration Owners: postfix Flags: seen All other postfix-related settings don't have any Value-field. Thanks, Bye, Joost
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