cannot switch from ifup to network manager

English Network/Internet
21

So network.service is working. Apparently you don’t have any wired connection now (enp4s0)?

As I already wrote: Please run the following to switch to NetworkManager:

sudo systemctl stop network.service
sudo systemctl --force enable NetworkManager.service
sudo systemctl start network.service

If there are any error messages, please post them with the stuff you typed.

And please also post the output of “systemctl status network.service” again afterwards.

22 
 systemctl stop network.servicelinux-nhyn:/var/log # systemctl --force enable NetworkManager.serviceln -s '/usr/lib/systemd/system/NetworkManager.service' '/etc/systemd/system/network.service'ln -s '/usr/lib/systemd/system/NetworkManager.service' '/etc/systemd/system/multi-user.target.wants/NetworkManager.service'ln -s '/usr/lib/systemd/system/NetworkManager-dispatcher.service' '/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service'linux-nhyn:/var/log # systemctl start network.serviceJob for NetworkManager.service failed. See 'systemctl status NetworkManager.service' and 'journalctl -xn' for details. 

 journalctl -xn-- Logs begin at Fri 2014-06-20 14:08:31 CEST, end at Tue 2014-06-24 13:27:30 CEST. --Jun 24 13:24:02 linux-nhyn.site NetworkManager[4635]: <info> (wlp3s0): roamed from BSSID 00:13:19:48:E9:F2 (AnriGuest) to 00:15:63:9A:33:E2 (AnriGuest)Jun 24 13:24:02 linux-nhyn.site NetworkManager[4635]: <info> Activation (wlp3s0) successful, device activated.Jun 24 13:24:02 linux-nhyn.site dbus[658]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'Jun 24 13:24:02 linux-nhyn.site systemd[1]: Starting Network Manager Script Dispatcher Service...-- Subject: Unit NetworkManager-dispatcher.service has begun with start-up-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel-- -- Unit NetworkManager-dispatcher.service has begun starting up.Jun 24 13:24:02 linux-nhyn.site dbus[658]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'Jun 24 13:24:02 linux-nhyn.site systemd[1]: Started Network Manager Script Dispatcher Service.-- Subject: Unit NetworkManager-dispatcher.service has finished start-up-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel-- -- Unit NetworkManager-dispatcher.service has finished starting up.-- -- The start-up result is done.Jun 24 13:24:02 linux-nhyn.site dns-resolver[1635]: ATTENTION: You have modified /etc/resolv.conf. Leaving it untouched...Jun 24 13:24:02 linux-nhyn.site dns-resolver[1640]: You can find my version in /etc/resolv.conf.netconfigJun 24 13:27:30 linux-nhyn.site dbus[658]: [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper)Jun 24 13:27:30 linux-nhyn.site dbus[658]: [system] Successfully activated service 'org.freedesktop.PackageKit'                                                                                                                                                                                                                                                        Jun 24 13:23:32 linux-nhyn.site systemd[1]: NetworkManager.service: main process exited, code=exited, status=1/FAILURE                                                                     Jun 24 13:23:32 linux-nhyn.site systemd[1]: Failed to start Network Manager.                                                                                                               Jun 24 13:23:32 linux-nhyn.site systemd[1]: Unit NetworkManager.service entered failed state.
[systemd-devel Info Page](http://l.facebook.com/l.php?u=http%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Fsystemd-devel&h=lAQE9HX7M&s=1) 


linux-nhyn:/var/log # systemctl status NetworkManager.service NetworkManager.service - Network Manager                                                                                                                                                      Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled)                                                                                                                   Active: failed (Result: exit-code) since Tue 2014-06-24 13:23:32 CEST; 5min ago                                                                                                           Process: 1570 ExecStart=/usr/sbin/NetworkManager --no-daemon (code=exited, status=1/FAILURE)                                                                                              Main PID: 1570 (code=exited, status=1/FAILURE)                                                                                                                                               CGroup: /system.slice/NetworkManager.service
23

So please post the output of this now:

sudo systemctl status network.service
24

The only “error” I see is this:

So try to remove /etc/resolv.conf and start network.service again:

sudo rm /etc/resolv.conf
sudo systemctl start network.service