TurnKey Linux's take on Ubuntu appliance development: KISS

Soren Hansen soren at ubuntu.com
Thu Jan 7 16:23:36 GMT 2010

On Thu, Jan 07, 2010 at 01:00:08PM +0100, Pau Garcia i Quiles wrote:
> I'd say the Debian Policy was never meant for the "building a turn-key
> appliance"-case. Maybe an amendment is needed: "no package should
> modify conffiles installed by other packages" -> "no package should
> modify conffiles installed by other packages, except in the case the
> package which modifies other packages conffiles states clearly it will
> do that in its description"

You're missing the point. If you are a novice user, using some tool to
make some changes to a configuration file managed by dpkg (i.e. a
conffile), upon upgrading said package, dpkg will prompt about changes
the user did not make (the aforementioned tool did it on your behalf) to
a file the user has likely never heard of. This is obviously not

If this behaviour is not wanted, it's simple to make sure a
configuration file is not considered a conffile.

Soren Hansen                 | 
Lead virtualisation engineer | Ubuntu Server Team
Canonical Ltd.               | http://www.ubuntu.com/
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