@joseph, I found out the coulprit after getting to the same possition with a CentOS system and trying couple kernels. The issue is being caused by a docker package from the "official" repository. The issue was resolved with the 4.6 kernel since it didn't had the aufs module and there for the docker could not start and do harm. Once I disable the docker service and reboot the system is back up and running. But the issue accured with both 4.4.0-x 4.6.x 4.8.0-x when I managed to make the docker start up. It happen only after upgrading the system so I cannot find the exact version of docker it started.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1674629 Title: virtio guest nics doesn't have network connectivity Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Confirmed Bug description: Before the update to this version of the kernel the VM's could recieve DHCP and contact the network. Once I updated the server to 4.4.0-66 my guest VM's cannot communicate with the network. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-66-generic 4.4.0-66.87 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 AlsaDevices: total 0 crw-rw----+ 1 root audio 116, 1 Mar 21 11:36 seq crw-rw----+ 1 root audio 116, 33 Mar 21 11:36 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Mar 21 11:39:57 2017 HibernationDevice: RESUME=UUID=a7f50198-2eb8-48c6-8051-06bce803d426 InstallationDate: Installed on 2017-02-15 (33 days ago) InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0624:0249 Avocent Corp. Virtual Keyboard/Mouse Bus 001 Device 002: ID 413c:a001 Dell Computer Corp. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. PowerEdge R230 PciMultimedia: ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-66-generic root=UUID=a86fd17c-b858-4b47-8e9f-6059eda9c38c ro RelatedPackageVersions: linux-restricted-modules-4.4.0-66-generic N/A linux-backports-modules-4.4.0-66-generic N/A linux-firmware 1.157.8 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/28/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.2 dmi.board.name: 0MFXTY dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.2:bd03/28/2016:svnDellInc.:pnPowerEdgeR230:pvr:rvnDellInc.:rn0MFXTY:rvrA01:cvnDellInc.:ct23:cvr: dmi.product.name: PowerEdge R230 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674629/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

