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

[Jerry Vonau]

On Tue, 2012-05-01 at 20:50 +0530, Ajay Garg wrote:
> Thanks Paul.
> 
> I will give it a try myself.
> 
> Just one last question ::
> I suppose that 'echo 0 > "/sys/class/net/eth0/lbs_mesh"' is a hack
> that is olpc-customised. So, I will be really grateful if you could
> point me to some docs (a wiki page may be), that provide information
> as to how this hack affects, and is affected.
> 
> 

Ajay:

http://wiki.laptop.org/go/Mesh_Network_Details
http://wiki.laptop.org/go/Wireless_Driver_README

Are installing the dextrose-platform rpm? 
http://download.sugarlabs.org/dextrose/testing/dx3/rpms/source/dextrose-platform-2-2.fc14.src.rpm

Jerry


> Thanks for your help.
> 
> Regards,
> Ajay
> 
> On Tue, May 1, 2012 at 8:36 PM, Paul Fox <pgf at laptop.org> wrote:
>         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
> 
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