diff --git a/0.VirtualBox.md b/0.VirtualBox.md
index 8ad7470..654a590 100644
--- a/0.VirtualBox.md
+++ b/0.VirtualBox.md
@@ -67,6 +67,13 @@ VBoxManage export SlackDB --output SlackDB.ova   # export
 VBoxManage import SlackDB.ova                    # import
 ```
 
+## Split disk
+
+```sh
+# firts detach and delete disk from VMachine
+vboxmanage clonemedium disk Rocky\ Linux.vdi output.vmdk --format VMDK --variant Split2G
+```
+
 ## Convert to KVM
 
 ```sh