vdi與vmdk/vhd/raw之間的轉換

Virtual Disk Conversion
VirtualBox uses VDI files for primary hdd image. After you export the VM it will become a VMDK. I f you want to convert it back to VDI, or just want to convert image type you can do it with the following command:
Syntax:

#VBoxManage.exe internalcommands converthd -srcformat FORMAT1 -dstformat FORMAT2 SRCFILE DSTFILE

Example:

v:\VM\HD>"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" internalcommands co
nverthd -srcformat VMDK -dstformat VDI V:\VM\HD\W2003_Ent_R2_SP2.vmdk v:\VM\HD\W
2003_Ent_R2_SP2_DC.vdi

轉自  http://www.cnblogs.com/ysun/archive/2011/10/11/2206737.html