Failure to Boot on Red Hat Enterprise Linux (RHEL) or CentOS 8 using Hyper-V 2016 RRS feed

  • Question

  • When using RHEL 8 or CentOS 8 as the guest operating system on a virtual machine (VM) running on a Microsoft Hyper-V Server 2016 host, the VM in some cases fails to boot and returns to the GRUB boot menu. It sometimes takes up to 20 attempts before the vm starts (VM therefore stays stopped after 5 retries to boot kernel with grub)

    It seems that it's this bug: https://access.redhat.com/solutions/4796261

    The following error is logged in the Hyper-V event log:

    The guest operating system reported that it failed with the following error code: 0x1E

    We are increasingly seeing this problem occurring on sone clusters and on others not

    Any Ideas, Workarrounds, Fixes? For example is it possible to increase the retries of 5 somewhere? Concerning Red Hat the Problem will be solved in Hyper-V 2019, but as we have 200+ physical nodes it takes a lot of time to upgrade and we need some workarrounds

    Monday, July 27, 2020 11:49 AM

All replies

  • Your best chance is to open a support ticket with RedHat and have them provide a resolution, other than upgrading to WS2019.

    If they get enough feedback, they might push to get a fix into the kernel, or Microsoft on Hyper-V side.

    Wednesday, July 29, 2020 2:02 PM