Hello, I have installed two machines that I think should be substantially the same. One was created be installing Ubuntu-17.04-server and adding the xubuntu-desktop package. The other was created by installing the Xubuntu-17.04-desktop release. There is one small difference between them (I've noticed so far) that I would like to fix.
In the Xubuntu-17.04-desktop install, the applet run by Settings -> Network Connections lists my ethernet connection as expected. In the Ubuntu-server+xubuntu install, Network Connections is empty (and the little network thingie in the Indicators area says "Ethernet device not managed".) However there is a working network connection, it just seems as if Network Manager (or whatever it is that Network Connections applet uses) doesn't know about it. My question is what could cause this difference and how do I get the Ubuntu+xubuntu network connections applet recognize the existing network connection, same as the Xubuntu-desktop system? I think this has something to do with NetworkManager and/or systemd, both of which I am woefully ignorant about. Some additional info -- apologies for volume of information :-(... I have compared the packages installed on both systems. The Ubuntu+xubuntu system has nearly all the packages that the Xubuntu-desktop system has, and the few that it is missing don't seem to be likely to be related to this problem.) When installing both machines, the networks were sussed out by the installer, I didnt give it any special instructions regarding the network. But the /etc/network/interfaces files were different on both machines. (ubtest is the Ubuntu+xubuntu machine who's network applet doesn't recognize the network, and xbtest is the Xubuntu-desktop machine that does): ubtest's /etc/networks/interfaces: auto lo iface lo inet loopback # The primary network interface auto enp0s3 iface enp0s3 inet dhcp xbtest's /etc/networks/interfaces: auto lo iface lo inet loopback I also compared boot-time logs for both systems. I replaced ubtest's interfaces file (that explicitly mentions enp0s3) with the one from xbtest (that doesn't). The former resulted in a functional network (albeit with the network applet problem); the latter one doesn't (as seen in the excerpted log file messages below) but does show where the boot-time actions of each system diverge which I think is the significant thing. Messages up to the point shown below are substantially the same in both machines. But then as can be seen, the Xubuntu-desktop system (without the problem) does a bunch of stuff starting with "keyfile: add connection..." that the Ubuntu+xunbuntu system doesn't. Why? ubtest: Oct 04 23:25:33 ubtest NetworkManager[728]: <info> [1507181133.4098] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/0) Oct 04 23:25:33 ubtest NetworkManager[728]: <info> [1507181133.4413] manager: (enp0s3): new Ethernet device (/org/freedesktop/NetworkManager/Devices/1) Oct 04 23:25:33 ubtest NetworkManager[728]: <info> [1507181133.4534] manager: startup complete Oct 04 23:25:33 ubtest NetworkManager[728]: <info> [1507181133.4850] urfkill disappeared from the bus Oct 04 23:25:33 ubtest NetworkManager[728]: <info> [1507181133.4887] ModemManager available in the bus Oct 04 23:25:33 ubtest systemd[1]: Started Network Manager Wait Online. Oct 04 23:25:34 ubtest systemd[1]: Started Raise network interfaces. Oct 04 23:25:34 ubtest systemd[1]: Reached target Network. [ifconfig shows enp0s3 is not running, has no ipv4 address which is a result of the replaced interfaces file I presume.] xbtest: Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0028] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/0) Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0070] manager: (enp0s3): new Ethernet device (/org/freedesktop/NetworkManager/Devices/1) Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0089] keyfile: add connection in-memory (2d1398a2-a84c-3a86-97da-6c8094291c60,"Wired connection 1") Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0129] settings: (enp0s3): created default wired connection 'Wired connection 1' Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0146] device (enp0s3): state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0401] device (enp0s3): link connected Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0618] urfkill disappeared from the bus Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0644] ModemManager available in the bus Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.0876] device (enp0s3): state change: unavailable -> disconnected (reason 'none') [20 30 0] Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1045] policy: auto-activating connection 'Wired connection 1' Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1119] device (enp0s3): Activation: starting connection 'Wired connection 1' (2d1398a2-a84c-3a86-97da-6c8094291c60) Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1132] device (enp0s3): state change: disconnected -> prepare (reason 'none') [30 40 0] Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1142] manager: NetworkManager state is now CONNECTING Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1216] device (enp0s3): state change: prepare -> config (reason 'none') [40 50 0] Oct 04 18:46:17 xbtest NetworkManager[631]: <info> [1507164377.1251] device (enp0s3): state change: config -> ip-config (reason 'none') [50 70 0] [... continues on setting up enp0s3...] Oct 04 18:46:18 xbtest systemd[1]: Started Raise network interfaces. Oct 04 18:46:18 xbtest systemd[1]: Reached target Network. -- xubuntu-users mailing list xubuntu-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/xubuntu-users
