The errors are originating from the tulip driver, as you can see below. Will also send the full apport-collect logs.
[ 2.659387] tulip: Linux Tulip driver version 1.1.15 (Feb 27, 2007) [ 2.712279] tulip 0000:00:0a.0: PCI INT A: failed to register GSI [ 2.717659] tulip: Cannot enable tulip board #0, aborting [ 2.735031] tulip: probe of 0000:00:0a.0 failed with error -1 ** Tags added: apport-collected vivid ** Description changed: Issue description: Attaching a Legacy network adapter to a VM will not be detected on the VM side. This is not the case with synthetic adapters, which are properly identified. Steps to Reproduce: 1. Add a Legacy Network adapter to the VM 2. Boot the vm 3. Verify the identified network adapter, the legacy NIC is missing Versions details: Windows Server Host Edition: Microsoft Windows Server 2012 R2 Datacenter build 9600 and Microsoft Windows Server 2008 R2 Standard SP 1 build 7601 Distribution name and release: Ubuntu Vivid Vervet Kernel version: Linux ubuntu31 3.19.0-11-generic #11lp14233432v201504021617 SMP Hyper-V side: PS> Get-VMNetworkAdapter -VMName vivid1 Name IsManagementOs VMName SwitchName MacAddress Status IPAddresses ---- -------------- ------ ---------- ---------- ------ ----------- Network Adapter False vivid1 external 00155D06332D {Ok} {IP, fe80::215:5dff:fe06:332d} Legacy Network Adapter False vivid1 external 00155D063336 {Ok} {} On the VM Side: root@ubuntu31:~# ls /sys/class/net/ eth0 lo eth0 has the MAC of the Network Adapter, which is the synthetic interface. - This has been verified with also 1 vCPU or with irqbalancer daemon - disabled, as that is a common requirements when using legacy adapters. + This has been verified with also 1 vCPU or with irqbalancer daemon disabled, as that is a common requirements when using legacy adapters. + --- + AlsaDevices: + total 0 + crw-rw---- 1 root audio 116, 1 May 6 08:17 seq + crw-rw---- 1 root audio 116, 33 May 6 08:17 timer + AplayDevices: Error: [Errno 2] No such file or directory + ApportVersion: 2.17.2-0ubuntu1 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + DistroRelease: Ubuntu 15.04 + HibernationDevice: RESUME=/dev/mapper/ubuntu1504--vg-swap_1 + InstallationDate: Installed on 2015-04-23 (12 days ago) + InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release amd64 (20150422) + IwConfig: + eth0 no wireless extensions. + + lo no wireless extensions. + Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 + MachineType: Microsoft Corporation Virtual Machine + Package: linux (not installed) + PciMultimedia: + + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 hyperv_fb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/hostname--vg-root ro crashkernel=384M-:128M console=tty0 console=ttyS1 + ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 + RelatedPackageVersions: + linux-restricted-modules-3.19.0-15-generic N/A + linux-backports-modules-3.19.0-15-generic N/A + linux-firmware 1.143 + RfKill: Error: [Errno 2] No such file or directory + Tags: vivid + UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' + Uname: Linux 3.19.0-15-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 05/23/2012 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: 090006 + dmi.board.name: Virtual Machine + dmi.board.vendor: Microsoft Corporation + dmi.board.version: 7.0 + dmi.chassis.asset.tag: 6473-7986-1993-5777-7899-0719-77 + dmi.chassis.type: 3 + dmi.chassis.vendor: Microsoft Corporation + dmi.chassis.version: 7.0 + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090006:bd05/23/2012:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0: + dmi.product.name: Virtual Machine + dmi.product.version: 7.0 + dmi.sys.vendor: Microsoft Corporation -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1440072 Title: [Hyper-V] Legacy network adapter is not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440072/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs