Re: Feedback needed: How to disable services at startup... and keep them so.
On Tue, Dec 7, 2010 at 6:16 PM, Paul Lane <kc9eye@gmail.com> wrote:
> On Tue, Dec 7, 2010 at 10:21 AM, Camaleón <noelamac@gmail.com> wrote:
>> Hello,
>>
>> A month ago, I disabled Network Manager service in my Squeeze system so
>> it doesn't run on start up. I wanted to keep NM installed (just in case)
>> but preferred to use the old "ifup" network setup method.
>>
>> So I issued "update-rc.d network-manager remove" and also disabled gnome
>> NM applet from being started. So far so good, no more NM running at
>> booting.
>> I missed something -there is a better way to handle
>> this or should I write a report?
>>
>> Greetings,
>>
>> --
>> Camaleón
> AFAIK, the method to disable a boot time service is to change the name
> of its symlink in the appropriate runlevel (normally 2, for debian)
> folder. I'm not sure what the name of the NM script is as I did this
> many moons ago. But, if you look in /etc/rc2.d/, you will find a
> README that explains it all. Reprinted here for clarity:
>
> "The scripts in this directory are executed each time the system enters
> this runlevel.
>
> The scripts are all symbolic links whose targets are located in
> /etc/init.d/ .
>
> To disable a service in this runlevel, rename its script in this directory
> so that the new name begins with a 'K' and a two-digit number, where the
> number is the difference between the two-digit number following the 'S'
> in its current name, and 100. To re-enable the service, rename the script
> back to its original name beginning with 'S'.
>
> For a more information see /etc/init.d/README."
Problem is, or at least, what I think the problem with that is, is
that insserv is installed by default, and concurrent is now the
default as well. So whenever a system service is added removed,
changed or when insserv is called by some other means, it will look at
the LSB headers for the init script and fix any missing symlinks.
Haven't tested that, but it's my uninformed opinion.
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