id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
7811,VERR_NOT_SUPPORTED when using raw vmdk on OSX,Tinco,,"When you create a raw disk vmdk image like so:

VBoxManage internalcommands createrawvmdk -filename arch_disk1.vmdk
      -rawdisk /dev/disk2

You get a vmdk file like the one attached.

When you select it as a hard disk for a virtual machine, it will throw the following error before booting:

VD: error VERR_NOT_SUPPORTED opening image file '/Users/tinco/smurfer2.vmdk' (VERR_NOT_SUPPORTED).
VD: error VERR_NOT_SUPPORTED opening image file '/Users/tinco/smurfer2.vmdk' (VERR_NOT_SUPPORTED).
Failed to open image '/Users/tinco/smurfer2.vmdk' in read-write mode rc=VERR_NOT_SUPPORTED (VERR_NOT_SUPPORTED).
Failed to attach driver below us! Not supported. (VERR_NOT_SUPPORTED).
AHCI: Failed to attach drive to Port0 (VERR_NOT_SUPPORTED).
Unknown error creating VM (VERR_NOT_SUPPORTED).

## Details

Result Code: 
NS_ERROR_FAILURE (0x80004005)
Component: 
Console
Interface: 
IConsole {6375231a-c17c-464b-92cb-ae9e128d71c3}

A work around that works suggested by klaus-vb is to enable ""use host I/O cache"" on the SATA controller""",defect,closed,other,VirtualBox 3.2.12,duplicate,,,other,other