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

linuxbuddy 1 Reputation point
2020-07-27T15:17:41.827+00:00

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

Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. Xiaowei He 9,871 Reputation points
    2020-07-28T06:54:45.45+00:00

    Hi,
    Thanks for your post!
    Since you are using linux on Hyper V, it's suggested to turn to Linux on Hyper V forum for better help:

    https://social.technet.microsoft.com/Forums/Windows/en-US/home?forum=linuxintegrationservices

    Thanks for your understanding!
    Best Regards,
    Anne

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