I'm seeing this on Trusty for VLAN interfaces. In the log I see: <info> (eth0.1): carrier is OFF <info> (eth0.1): VLAN ID 1 with parent eth0 <info> (eth0.1): new VLAN device (driver: '8021q' ifindex: 26) <info> (eth0.1): exported as /org/freedesktop/NetworkManager/Devices/18 <info> (eth0.1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] <info> (eth0.1): deactivating device (reason 'managed') [2]
In /etc/NetworkManager/NetworkManager.conf I have: [ifupdown] managed=false ... which should mean that anything listed in /etc/network/interfaces should be ignored. In my /etc/network/interfaces file I have: auto eth0.1 iface eth0.1 inet static address 100.64.0.1/24 So NetworkManager is incorrectly marking this interface as managed. (according to the man page, you don't need "auto" for non-physical interfaces, but I tried putting it in there anyway, in case NetworkManager was looking for it in /etc/network/interfaces) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1439436 Title: NM in vivid tries to take over my libvirt bridge, deconfigures its address To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1439436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
