@ToxinE Ubuntu 18.4.2 LTS was released before this bug was fixed. Therefore, you will not be able to install using the normal kernel.
You may, if you wish use the HWE kernel, which is based on Linux kernel 4.18.x and it does work on Hyper-V and doesn't have this issue. Please see comment #31. Or you could install 18.4.1 LTS and then apply the upgrades. -- 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/1814069 Title: kernel linux-image-4.15.0-44 not booting on Hyperv Server 2008R2 Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Bug description: === SRU Justification === [Impact] NULL pointer dereference in netvsc_probe(). Module hv_netvsc is included in initramfs, so this blocks the boot process. For Hyper-V only supports single channel, rndis_filter_device_add() bails early and jump to tag "out". Subsequent code calls rndis_filter_device_remove() and returns ERR_PTR(ret), where ret is 0 (sucess). Because of that, it passes IS_ERR(nvdev) check in netvsc_probe() and cause a NULL pointer dereference, as nvdev now is 0: ... if (nvdev->num_chn > 1) schedule_work(&nvdev->subchan_work); [Fix] Correctly return net_device at the end of rndis_filter_device_add(). [Test] Users report positive result. [Regression Potenial] Low. Trivial change, patches are in upstream sometime. === Original Bug Report === Ubuntu stuck on booting on HyperV Server 2008R2. I saw kernel messages, seems to load ram image the boot is stuck. Seems to be a problem with hyperv drivers propably harddrive. Reverted back to the previous kernel. Description: Ubuntu 18.04.1 LTS Release: 18.04Description: Ubuntu 18.04.1 LTS Release: 18.04 --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 31 08:52 seq crw-rw---- 1 root audio 116, 33 Jan 31 08:52 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Microsoft Corporation Virtual Machine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 hyperv_fb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=86036ccb-bc11-11e8-93c9-00155dfd7535 ro maybe-ubiquity ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-43-generic N/A linux-backports-modules-4.15.0-43-generic N/A linux-firmware 1.173.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 4.15.0-43-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 03/19/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 090004 dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: 7.0 dmi.chassis.asset.tag: 8531-7125-9206-2460-7819-2663-90 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: 7.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090004:bd03/19/2009: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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1814069/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
