Unable to start KVM VPS on SolusVM KVM slave running on Centos 8, Centos 8 Stream or Almalinux: unknown feature amd-sev-es

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Applicable to:

  • SolusVM

Symptoms 

  • Unable to start KVM VPS in SolusVM - VPS stays offline
  • When trying to reboot VPS in debug mode at SolusVM > Virtual Servers > VPS > Reboot(Debug) there is the following error:

    CONFIG_TEXT: error: failed to get emulator capabilities
    error: internal error: unknown feature amd-sev-es

Cause

This is the RHEL bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1961558
https://bugzilla.redhat.com/show_bug.cgi?id=1961562

Resolution

  1. Connect to KVM Slave node via SSH
  2. Run the following commands:

    # mkdir -p /etc/qemu/firmware
    # touch /etc/qemu/firmware/50-edk2-ovmf-cc.json

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