[Pkg-exim4-users] Upgrade from Debian 4 to 5 leads to exim4 problems

[Marc Haber]

Hi,

On Mon, Sep 21, 2009 at 07:46:12AM +0200, thomy at vincentz.com wrote:
>> I do have /etc/exim4/exim4.conf.template.dpkg-dist dating from Sept  
>> 2008, but I don't understand what "porting forward my local  
>> modification of the respective file to the dpkg-dist version" means.
>> Can anyone advise me as to what I can do to get exim4 working again?
> That's a nasty one to upgrade.
>
> It means that you have to do it manually. Some of the config keywords  
> are obsolete and won't work with a newer exim.
> What I did was a clean install of exim and compared the config-files of  
> the split config by hand.

During a package update, no information is ever lost. If you decide
to keep your configuration, the new configuration is unpacked and
saved with a .dpkg-dist extension. In this case, you'll probably have
a non-working exim because your old configuration may not fit the new
software. 

If you decide to take our new configuration, your old configuration
gets renamed to a .dpkg-old extension. In this case, you'll definetely
have your manual changes temporarily disabled.

In both cases, you'd probably go ahead with comparing new and old
configuration, and decide whether a change was yours or ours, and
apply your changes to our new configuration, which will most probably
yield a working configuration. This process is considerably easier if
you knew what you were doing instead of blindly following some HOWTO
document from the web.

Since the script with tries to identify old configuration snippets is
rather paranoid, you would probably have to manually move away the
.dpkg-old/.dpkg-dist files.

Greetings
Marc

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