Re: Problems in Upgrade from ESX 4.00 To ESX 5.5 U2 on HP DL380 G6 .

Hi,

regarding failed upgrade follow this KB article:

VMware KB: Upgrading VMware ESXi 4.x to ESXi 5.x on a local disk fails with error: Invalid argument when creating vf…

...next if your ESXi 4.0 was previously installed using HP image always use HP customized image for upgrades...

Was your ESXi previously upgraded from ESXi3.x release?

The VM you cant migrate does have any active snapshots?

Also verify dest.dat. VMFS block size...see KB below:

VMware KB: Cloning or migrating virtual machine files fail with the error: Error caused by file

if that is not your issue investigate for file locks:

VMware KB: Investigating virtual machine file locks on ESXi/ESX