VBoxManage clonevdi “D:\ns8-rocky-linux-9-1.0.0.vdi” “D:\ns8-rocky-linux-9-1.0.0-test1.vdi”
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Other for example
VBoxManage clonevdi “D:\ns8-rocky-linux-9-1.0.0.vdi” “D:\ns8-rocky-linux-9-1.0.0-test2.vdi”
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In VirtualBox :
Push New button
Enter a name
Select Machine Folder
Select “Linux”
Select "Red Hat (64-bit)
Push Next button
Select “RAM memory”
Push Next button
Select “Use an existing virtual hard disk file”
→ Choose a virtual hard disk file
Push Create button
Push Setting button
Select Network → Adapter 1 → Bridged Adapter
Select Network → Adapter 2 → Nat Network
Push OK and Start the VM
Next step that I have done, connect in Console with root, change password and if I do: “systemctl enable --now cockpit/socket”, Cockpit works but always no https://xxx.xxx.xxx.xxx/cluster-admin/
There were similar issues with the Debian image in VMWare, please try a vmdk from here.
EDIT:
I tested converting the qcow image to vdi and it worked. I used a bridged virtual network adapter and could reach the cluster-admin page. If needed you can download the working vdi.