response on the forums was the following : It is ok for eth0 not to be mentioned in /etc/network/interfaces; it means it is managed in roaming mode by NetworkManager You can reboot or disable and reenable networking via the NetworkManager applet.
so I suppose the bug is invalid ? -- eth0 missing in (/etc/network/) interfaces file https://bugs.launchpad.net/bugs/159123 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs