Debian Questions

[John Heim]

Right, that says if you delete all the links it will replace them. So it 
probably doesn't replace them if you just delete one. I'm pretty sure that's 
the behaviour I have observed. Now that you've clude me in, I wwouldn't 
count on it always working that way. So my suggestion to remove the links 
was wrong.

----- Original Message ----- 
From: "Gregory Nowak" <greg at romuald.net.eu.org>
To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca>
Sent: Thursday, August 07, 2008 8:59 PM
Subject: Re: Debian Questions


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> - From the update-rc.d(8) man page:
> "A  common  system  administration error is to delete the links with
> the thought that this will "disable" the service,
>       i.e., that this will prevent the service from being started.
>       However, if all links have been deleted then  the  next
>       time  the package is upgraded, the package's postinst script
>       will run update-rc.d again and this will reinstall links
>       at their factory default locations.  The correct way to disable
>       services is to configure the service  as  stopped  in
>       all  runlevels in which it is started by default.  In the
>       System V init system this means renaming the service's sym-
>       bolic links from S to K."
>
> I can confirm that replacing some S links in /etc/rc2.d with K links,
> and then having those packages upgraded leaves the links as they
> are. Whether or not a deleted link would have been put back or not
> upon upgrade, I don't know, I suppose that would depend on whether or
> not a package uses update-rc.d to manage links after it gets
> installed/upgraded. However, I do think that if such a paragraph in a
> man page would have been wrong, it probably would have been noticed
> and corrected fairly quickly.
>
> Greg
>
>
> On Thu, Aug 07, 2008 at 08:29:12PM -0500, John G. Heim wrote:
>> Huh... Are you sure it replaces the link on upgrade? Because I have
>> removed that link on plenty of systems and I think I've run 'apt-get
>> dist-upgrade' about a bzillion times but I don't think it ever replaced
>> the link. But obviously, by the number of "I thinks" in this message, I'm
>> not sure.
>>
>> It seems to me that that would kind of be a bug. It would be akin to over
>> writing a config file you modified.
>>
>
>
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