Upgrade from source to RC1: problems with /etc : lost users and dbus

[Doug Barton]

On 10/28/2011 20:09, Kevin Oberman wrote:
> On Fri, Oct 28, 2011 at 6:34 PM, Doug Barton <dougb at freebsd.org> wrote:
>> On 10/28/2011 01:43, Thomas Mueller wrote:
>>> How does one run mergemaster without running roughshod over existing configuration?
>>
>> Carefully? :)  Seriously ... always use the -P option, and/or add
>> PRESERVE_FILES in your mergemaster rc file. Watch the changes carefully.
>> If you have to, do the updates in more than one pass using the -r option
>> for subsequent runs. Do the simple ones first, then go back and do the
>> ones that you have to think harder about. I recommend against using the
>> -U option.
>>
>> It's not rocket science, it's just like any other system administration
>> task, it requires careful attention.
> 
> I agree that just running mergemaster CAREFULLY does the job. The only
> time I was ever burned was when I was in a BIG hurry and ended up
> wasting a LOT of time. (I think I also learned.) Of course, I also
> remember merging /etc before we had mergemaster.

Yeah, me too, that's why I wrote it. :)

> I am a bit curious why you recommend against -U, though. I've been
> using it since it was added and have never had a problems. It's saved
> me quite a bit of time. Is thee a corner case that I'm missing?

The case where there are relevant changes in configuration or other
files that you miss because you install them without examination. That
said, I realize that what people *want* is an upgrade process that they
don't have to look at and/or think about. As soon as I figure out how to
make mergemaster telepathic I'll be sure to add that patch.


Doug

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