[Sugar-devel] Wanting to know a bit of (NetworkManager) workflow upon resume-from-suspend

[Paul Fox]

ajay wrote:
 > Thanks Paul.
 > 
 > On Tue, May 1, 2012 at 8:03 PM, Paul Fox <pgf at laptop.org> wrote:
 > 
 > > ajay wrote:
 > >  > Any ideas please, regarding the two latest queries :) ?
 > >  >
 > >  > Regards,
 > >  > Ajay
 > >  >
 > >  > On Mon, Apr 30, 2012 at 1:00 PM, Ajay Garg <ajay at activitycentral.com>
 > > wrote:
 > >  >
 > >  > > Thanks Martin and Jon for the replies.
 > >  > >
 > >  > > On Sun, Apr 29, 2012 at 3:04 PM, Jon Nettleton <
 > > jon.nettleton at gmail.com>wrote:
 > >  > >
 > >  > >> On Sun, Apr 29, 2012 at 10:04 AM, Martin Abente
 > >  > >> <martin.abente.lahaye at gmail.com> wrote:
 > >  > >> > Are you guys still using this?
 > >  > >> >
 > >  > >>
 > >  >
 > > 
 > http://git.sugarlabs.org/dextrose-platform/mainline/blobs/master/etc/powerd/post
 > >  > resume.d/disable_mesh.sh
 > >  > >> >
 > >  > >> > If so, you should remove it IF there is no way to guarantee that it
 > >  > >> will run
 > >  > >> > before NM picks up the device. At least it will avoid the crash...
 > >  > >> >
 > >  > >> > I would ask in the NM community if there is a better way to
 > > disable a
 > >  > >> > particular device, like banning a device(?).
 > >  > >>
 > >  > >> Edit /etc/NetworkManager/NetworkManager.conf
 > >  > >>
 > >  > >> Add a line to the [main] section like
 > >  > >>
 > >  > >> no-auto-default=xx:xx:xx:xx:xx (obviously replacing the x's with the
 > >  > >> mac-address of your mesh device.)
 > >  > >>
 > >  > >
 > >  > >
 > >  > > This should be a lot cleaner solution.
 > >  > > However, two queries ::
 > >  > >
 > >  > >
 > >  > > a)
 > >  > > Doing "ifconfig" on the XO-1, only shows information for "eth0" and
 > > "lo"
 > >  > > (no mesh device listed).
 > >  > > So, how can the mac address for the mesh device be found?
 > >
 > > it's the same as that for eth0.
 > >
 > 
 > Does that mean, that banning eth0-mac-address prevent the loading of
 > wifi-hardware-device as well (in obvious addition to mesh) ?
 > This seems very pricky.

i don't know.  i'm unfamiliar with NM config.  it doesn't sound too
hard to try.

paul

 > 
 > 
 > 
 > 
 > 
 > >
 > >  > > b)
 > >  > > Are mac address for XO-1s, EXACTLY same, for every XO-1 on this
 > > planet?
 > >
 > > of course not.  how would they tell one another apart?
 > >
 > 
 > Alright.
 > But my first doubt (same mac address for mesh-hardware and wifi-hardware)
 > has put me in topspin :~
 > 
 > 
 > 
 > Regards,
 > Ajay
 > 
 > 
 > 
 > 
 > 
 > >
 > > paul
 > >
 > >  > >
 > >  > >
 > >  > > Looking forward to a reply.
 > >  > >
 > >  > >
 > >  > >
 > >  > > Thanks and Regards,
 > >  > > Ajay
 > >  > >
 > >  > >
 > >  > >
 > >  > >>
 > >  > >> This does not stop NM from managing your device, but does stop it
 > > from
 > >  > >> auto-connecting the device.  You would still be able to go into NM
 > > and
 > >  > >> manually enable the mesh network.   If you want NM to completely
 > > leave
 > >  > >> the device alone you can go one more step.
 > >  > >>
 > >  > >> Also in /etc/NetworkManager/NetworkManager.conf
 > >  > >>
 > >  > >> change the plugins line to
 > >  > >>
 > >  > >> plugins=ifcfg-rh,keyfile
 > >  > >>
 > >  > >> Then add a section that looks like this.
 > >  > >>
 > >  > >> [keyfile]
 > >  > >> unmanaged-devices=mac:xx:xx:xx:xx:xx:xx (Where X's are the mac
 > > address
 > >  > >> of the device you want to ignore)
 > >  > >>
 > >  > >>
 > >  > >> Hope that helps, let me know if you have further questions.
 > >  > >>
 > >  > >> -Jon
 > >  > >>
 > >  > >
 > >  > >
 > >  > part 2     text/plain                 129
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 > >
 > > =---------------------
 > >  paul fox, pgf at laptop.org
 > >

=---------------------
 paul fox, pgf at laptop.org