Trying to convert virtual machines from VMware Server 2.0 to ESX / ESXi 3.5 with VMware vCenter Converter standalone 4.0, the following error message can appear :
Unable to obtain the lock on virtual disks
Here are the probably reasons and how to solve it :
– Shut down the VM before conversion
– Try the live conversion by Powered-on machine
– The VM was not shut down safely, restart and shut down it properly
– Delete all .TMP files associated with the virtual disk
– Delete all .WRITELOCK files associated with the virtual disk
– Delete all .LCK folders associated with the virtual disk