Very slow boot due to networking.service on 16.10 on Dell XPS 9550

[mark-bobak]

Hi all,

Freshly installed Ubuntu 16.10 on Dell XPS 15 9550.

Boot is *really* slow.

mjb@hawking:~$ sudo systemd-analyze blame
     5min 2.702s networking.service
          1.956s lightdm.service
          1.954s plymouth-quit-wait.service
          1.524s ModemManager.service
          1.520s vboxdrv.service
          1.519s click-system-hooks.service
          1.483s NetworkManager.service
          1.474s snapd.firstboot.service
          1.474s apparmor.service
          1.472s ebtables.service
          1.470s lxd-containers.service
          1.467s systemd-timesyncd.service
          1.460s lxd.socket
          1.459s snapd.socket
          1.244s gpu-manager.service
          1.007s NetworkManager-wait-online.service

It's pretty clear that networking.service is the culprit.

Any thoughts or suggestions as to my next move?

I should add, once it does boot up, everything looks fine, networking works fine.

Thanks,

-Mark

[mark-bobak]

Still struggling with this....not having any luck figuring out how to profile networking.service.

[wildmanne39]

Please try:

systemctl disable NetworkManager-wait-online.service

and report back if this works or not.
Thanks

[mark-bobak]

No joy.

systemd-analyze blame

still show 5min on networking.service.

[mark-bobak]

Ok, I'm not sure if this is a solution, or a workaround, but it worked for me.

I did:

 sudo vi /lib/systemd/system/networking.service

and I changed:

TimeoutStartSec=5min

to

TimeoutStartSec=10sec

I still have no idea what is timing out or why, but this solves the slow boot problem, and didn't seem to have any adverse effect.

-Mark