OCP installation on RHV fails with: "Cannot attach Virtual Disk: Disk is locked. Please try again later"

Solution Verified - Updated -


  • Deployment of OCP on RHV fails randomly when creating the Virtual Machine with uploaded RHCOS disk :
DEBUG module.template.ovirt_vm.tmp_import_vm[0]: Still creating... [10s elapsed]
ERROR Error: failed to attach disk: Fault reason is "Operation Failed". Fault detail is "[Cannot attach Virtual Disk: Disk is locked. Please try again later.]". HTTP response code is "409". HTTP response message is "409 Conflict".
ERROR   on ../tmp/openshift-install-813388607/template/main.tf line 46, in resource "ovirt_vm" "tmp_import_vm":
ERROR   46: resource "ovirt_vm" "tmp_import_vm" {
FATAL failed to fetch Cluster: failed to generate asset "Cluster": failed to create cluster: failed to apply Terraform: failed to complete the change


  • Red Hat Virtualization 4.4
  • Openshift Container Platform 4.8 and 4.9

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