Bug#854801: No network after netinst Stretch RC2

[Pierre Ynard <linkfanel@yahoo.fr>]

> in finish-install /e/n/i will never be properly populated for a wireless
> installation without network-manager, although I think ifupdown would be
> capable to do this (not tested, but have a look at
> https://anonscm.debian.org/cgit/d-i/netcfg.git/tree/write_interface.c).
> I guess the justification is that people using wireless usually would
> want a GUI to roam between networks, and a interface stanza would
> prevent even a (later installed) network-manager from touching the
> interface.

That makes sense. Maybe it could still output commented-out
configuration into /e/n/i, to make it easier in case people do end up
editing the file to set up their network, for whatever reason.

> a) go for Cyril's suggestion and just install rdnssd in finish-install
> if network-manager is not getting installed there (but honestly I have
> no idea of the netcfg code base)
> b) drop the Conflicts and make the rdnssd merge-hook a no-op if
> network-manager is installed/running.

I think trying to manage this conflict between two basic packages is
asking for trouble. rdnssd doesn't depend on /usr, I think in some
cases it can still be beneficial for bootstrap when network-manager
might not be available. There is already a distro-specific patch for
/etc/rdnssd/merge-hook to add a resolvconf by-pass, another one could
be added checking if network-manager is installed/available/running/in
charge of /etc/resolv.conf. I've never used network-manager personally
so I wouldn't quite know what's best to check exactly.

-- 
Pierre Ynard
"Une âme dans un corps, c'est comme un dessin sur une feuille de papier."