Indeed, it’s working now. Thanks for your support and sorry for the wrong bug report!
> Am 14.02.2019 um 10:03 schrieb Pierre-Elliott Bécue <[email protected]>: > > Le jeudi 14 février 2019 à 09:40:46+0100, K E N O a écrit : >> Hi, >> >> Thanks for your help! :) I thought so, too, but I still doesn’t work. In >> detail, I changed my `/etc/apt/sources.list` to: >> >>> ## Note, this file is written by cloud-init on first boot of an instance >>> ## modifications made here will not survive a re-bundle. >>> ## if you wish to make changes you can: >>> ## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg >>> ## or do the same in user-data >>> ## b.) add sources in /etc/apt/sources.list.d >>> ## c.) make changes to template file >>> /etc/cloud/templates/sources.list.debian.tmpl >>> ### >>> >>> # See >>> http://www.debian.org/releases/stable/i386/release-notes/ch-upgrading.html >>> # for how to upgrade to newer versions of the distribution. >>> deb http://deb.debian.org/debian stretch main contrib non-free >>> deb-src http://deb.debian.org/debian stretch main contrib non-free >>> >>> ## Major bug fix updates produced after the final release of the >>> ## distribution. >>> deb http://security.debian.org/ stretch/updates main contrib non-free >>> deb-src http://security.debian.org/ stretch/updates main contrib non-free >>> deb http://deb.debian.org/debian stretch-updates main contrib non-free >>> deb-src http://deb.debian.org/debian stretch-updates main contrib non-free >>> >>> ## Uncomment the following two lines to add software from the 'backports' >>> ## repository. >>> ## >>> ## N.B. software from this repository may not have been tested as >>> ## extensively as that contained in the main release, although it includes >>> ## newer versions of some applications which may provide useful features. >>> deb http://deb.debian.org/debian stretch-backports main contrib non-free >>> deb-src http://deb.debian.org/debian stretch-backports main contrib non-free >> >> Then I tried to execute `sudo apt update` and `sudo apt install >> mailman3-full`; the result is the same: > > The backports are pinned to not be installed from by default. > > You need to use the -t option. > > `sudo apt install -t stretch-backports mailman3-full` > > Regards. > > -- > Pierre-Elliott Bécue > GPG: 9AE0 4D98 6400 E3B6 7528 F493 0D44 2664 1949 74E2 > It's far easier to fight for one's principles than to live up to them.
