Sun Microsystems VIRTUALBOX VERSION 3.1.0_BETA2 - Manual (Page 125)

8 VBoxManage reference
storagectl Name of the storage controller. Mandatory.
port Port number to which the medium has to be attached/detached/modified.
Mandatory.
device Device Number to which the medium has to be attached/detached/modified.
Mandatory.
type Define the type of the drive to which the medium is being attached/detached/modified.
medium Allows to specify if the DVD/Floppy drive or Harddisk is to be completly
detached (none) or just an empty DVD/Floppy drive needs to be attached (emp-
tydrive). If uuid, filename or host: is specified then it is attached to the
storage controller at the specified port and device number.
passthrough With this, you can enable DVD writing support (currently experimental;
see chapter 5.7 , Writing CDs and DVDs using the host drive , page 85 ).
forceunmount If this option is specified then you can unmount the DVD/CD/Floppy
or mount a new DVD/CD/Floppy even if the previous one is locked down by the
guest for reading.
Note: The option “–medium none” doesn’t work when the VM is running
because you can’t remove DVD/Floppy Drives or Harddisks when the VM is
running.
8.14 VBoxManage showhdinfo
This command shows information about a virtual hard disk image, notably its size, its
size on disk, its type and the VM it is in use by.
Note: For compatibility with earlier versions of VirtualBox, the “showvdiinfo”
command is also supported and mapped internally to the “showhdinfo” com-
mand.
8.15 VBoxManage createhd
This command creates a new virtual hard disk image. The syntax is as follows:
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