NetworkManager not starting on bootup

The problem I face is that the NetworkManager does not start at boot-time. Having spent some considerable browsing time on this forum it appears as though my problems started (unknowingly at the time) when I tried changing the default xfce desktop to the standard one. It didn't work as expected, so I put everything back as it was... or so I thought.

The point I am at now, is that once the laptop has booted, I can go to Terminal and "sudo NetworkManager" and it starts up correctly. However, if I do a "ps -ef | grep NetworkManager" beforehand, it doesn't list it, only NetworkManagerDispatcher.

I am assuming that something has been changed when I tried the other desktop, and that I have mucked up the timing of the services etc on start-up.

Having spent a few years working with Unix some years back, I am familiar with /etc/rc2.d etc, but I am confused as to which rc?.d I should be looking at to see whether stuff has been commented out etc.

Has anyone seen this before, or does anyone definitively know which scripts are run at start-up or where I might look as to why the NetworkManager doesn't seem to start at boot-time (either because it is starting out of step with another dependancy, or if it needs to wait a bit longer somewhere or just isn't set to run at all)

Thanks

 

bump...

surely there is someone who knows the answer to this?

 

I have a similar problem since the last update (either that or me tinkering with what started when XFCE starts).

find out if NetworkManager is running:

Code:

/etc/init.d/NetworkManager status

this should give you a clue as to why it's not running. If the output of that command says "stopped" or "dead but subsystem locked" then it will be safe to do

Code:

sudo /etc/init.d/NetworkManager start

also have a look in /var/lock/subsys to see if NetworkManager has tried to start, it may also be worth checking /var/run/NetworkManager to see if there is a left over pid file.

 

I haven't found the cause yet but I have a work around to fix it.

using your favourite text editor edit (as root) /etc/init.d/NetworkManager
find the bit that look like

Code:

start()
{ 
    echo $"Setting network parameters... "

and insert the following line after the "{"

Code:

/bin/sleep 3

so that you end up with that section looking like:

Code:

start()
{
    /bin/sleep 3
    echo $"Setting the network parameters... "

This works for me and I believe it should work for everyone else.

 

Should this fix not booting up after returning from "Sleep"?

 

I don't know.
Your problem sounds different to PHB (and my) problem.