How to set up static IP in 12.04 and avoid these start-up delays?

[Tom H]

On Thu, Oct 4, 2012 at 7:40 AM, Marius Gedminas <marius at pov.lt> wrote:
> On Thu, Oct 04, 2012 at 12:31:54PM +0100, Chris Green wrote:
>>
>> I have just upgraded a little server system from Ubuntu Server 10.04 to
>> Ubuntu Server 12.04, the upgrade went fairly smoothly and it's basically
>> all working OK.
>>
>> However there is a very annoying delay has appeared in the boot
>> sequence, while the moving dots display during startup two messages
>> appear:-
>>
>>     Waiting for network configuration...
>>     [waits for 40 seconds]
>>     Waiting up to 60 more seconds for network configuration...
>>     [waits for 60 secodns]
>>
>> ... and then the system finally starts up.
>>
>> These delays are in the /etc/init/failsafe.conf script and seem to
>> happen even when the system is properly configured for static IP in
>> /etc/network/interfaces.
>
> You shouldn't be getting any delays if that's the case.
>
> Can you show the contents of your /etc/network/interfaces?
>
> Maybe one of the hooks in /etc/network/if-up.d is broken and prevents
> /etc/network/if-up.d/upstart from signalling the system about successful
> network configuration?  IIRC those scripts are sourced, not executed, so
> if any of them has 'set -e' and then an error occurs, the others won't
> even be run.
>
> To debug the situation you could create /etc/network/if-up.d/0000debug with
>
>   exec >> /var/log/ifup-d.log 2>&1
>   echo "Running if-up.d scripts for $IFACE"
>   set -x
>
> and then look at that log file when the server boots.

I'd put that snippet (more or less) into every script in
"/etc/network/if-up.d/" because I don't think that 0000debug'll act on
the other scripts - and it should be "chmod -x"'d.