Bug#780461: updates from #debian-systemd

[Wolfgang Schweer <wschweer@arcor.de>]

On Mon, Apr 20, 2015 at 11:00:17PM +0200, Petter Reinholdtsen wrote:
> 
> Could this be caused by dhclient running at a point during boot where
> /etc/ is read-only, causing /usr/sbin/update-hostname-from-ip to exit
> with an error code instead of updating the hostname?  It is my best
> guess for why the hostname update wait for the first renewal.

Seems to be /etc is writable at the time. Maybe the reason is that 
'BOUND' isn't evaluated, only 'RENEWAL'?
 
> > (2) For Profiles 'Workstation' and 'Minimal' the hook script is working
> >     like stated above. 
> >     But LTSP-Servers may have PROFILE="Workstation, Thin-Client-Server"
> >     set in /etc/debian/edu/config. The hook script IMO fails to update 
> >     the hostname cause there's no matching case entry.

I guess I'll file a separate bug about this issue to get it sorted.
 
> Also, why is the sethostname() function in the 
> dhclient-exit-hooks.d/hostname script?  It seem to be completely 
> unused.  Remove it?

Yes, seems to be leftover cruft. And the log() function could be dropped 
as well; logging is done via the update-hostname-from-ip script.

Wolfgang