[Pkg-mailman-hackers] Bug#922243: mailman3-full : Depends: mailman3 but it is not going to be installed

[Pierre-Elliott Bécue]

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
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It's far easier to fight for one's principles than to live up to them.