Cisco Catalyst 8000V Edge Software Installation And Configuration Guide

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Troubleshoot KVM Installation Issues

Updated: March 5, 2026

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Overview

Provides information to troubleshoot common issues while installing Cisco Catalyst 8000V in KVM environments.

See this section to troubleshoot common issues while installing Cisco Catalyst 8000V in KVM environments.

Issue

In a KVM environment, when you clone a Cisco Catalyst 8000V virtual machine using the virt-manager virtual machine manager, it results in a Cisco Catalyst 8000V virtual machine that you might not be able to boot. The issue occurs because virt-manager creates a cloned image that is larger than the original Cisco Catalyst 8000V VM image. The additional bytes, typically in the kilobyte range, prevent the virtual machine from booting.

Workaround

Use one of these workarounds to resolve this issue.

  • Use the virt-clone command to clone the Cisco Catalyst 8000V VM image.

  • For a cloned Cisco Catalyst 8000V VM image created by virt-manager during the bootup, select the GOLDEN image to boot instead of packages.conf.

  • In the Create a new virtual machine window, deselect Allocate Entire Disk Now before creating the new Cisco Catalyst 8000V VM. This action allows the cloned Cisco Catalyst 8000V VM image to boot. Do not use this workaround for nested cloning. Apply it only to the first cloned Cisco Catalyst 8000V VM image.