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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE topic
PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="virtual-media-manager">
<title>The Virtual Media Manager</title>
<body>
<p>
Oracle VM VirtualBox keeps track of all the hard disk, CD/DVD-ROM, and
floppy disk images which are in use by virtual machines. These are
often referred to as <i>known media</i> and come
from two sources:
</p>
<ul>
<li>
<p>
All media currently attached to virtual machines.
</p>
</li>
<li>
<p>
Registered media, for compatibility with legacy Oracle VM VirtualBox
versions.
</p>
</li>
</ul>
<p>
The known media can be viewed and changed using the
<b outputclass="bold">Virtual Media Manager</b> tool, which
you access by clicking <b outputclass="bold">Media</b> on
the global <b outputclass="bold">Tools</b> menu in
VirtualBox Manager.
</p>
<fig id="fig-virtual-media-manager">
<title>The Virtual Media Manager, Showing Hard Disk Images</title>
<xref href="images/virtual-disk-manager.png" format="png" platform="htmlhelp">
<image href="images/virtual-disk-manager.png" width="12cm" placement="break">
<alt>The Virtual Media Manager, Showing Hard Disk Images</alt>
</image>
</xref>
<image platform="ohc" href="images/virtual-disk-manager.png" width="12cm" placement="break">
<alt>The Virtual Media Manager, Showing Hard Disk Images</alt>
</image>
</fig>
<p>
The known media are conveniently grouped in separate tabs for the
supported formats. These formats are:
</p>
<ul>
<li>
<p>
Hard disk images, either in Oracle VM VirtualBox's own Virtual Disk
Image (VDI) format, or in the third-party formats listed in
<xref href="vdidetails.dita#vdidetails"/>.
</p>
</li>
<li>
<p>
CD/DVD images in standard ISO format.
</p>
</li>
<li>
<p>
Floppy images in standard RAW format.
</p>
</li>
</ul>
<p>
For each image, the Virtual Media Manager shows you the full path
of the image file and other information, such as the virtual
machine the image is currently attached to.
</p>
<p>
The Virtual Media Manager enables you to do the following:
</p>
<ul>
<li>
<p>
<b outputclass="bold">Add</b> an image to the known
media.
</p>
</li>
<li>
<p>
<b outputclass="bold">Create</b> a new disk image.
</p>
<ul>
<li>
<p>
For hard disks, the <b outputclass="bold">Create Virtual
Hard Disk</b> wizard is shown. See
<xref href="create-virtual-hard-disk-image.dita#create-virtual-hard-disk-image"/>.
</p>
</li>
<li>
<p>
For optical disks, the <b outputclass="bold">VISO
Creator</b> tool is shown. See
<xref href="create-optical-disk-image.dita#create-optical-disk-image"/>.
</p>
</li>
<li>
<p>
For floppy disks, the <b outputclass="bold">Floppy Disk
Creator</b> tool is shown. See
<xref href="create-floppy-disk-image.dita#create-floppy-disk-image"/>.
</p>
</li>
</ul>
</li>
<li>
<p>
<b outputclass="bold">Copy</b> an image to create
another one.
</p>
<p>
For virtual hard disks, you can specify one of the following
target types: VDI, VHD, or VMDK.
</p>
</li>
<li>
<p>
<b outputclass="bold">Move</b> an image to another
location.
</p>
<p>
A file dialog prompts you for the new image file location.
</p>
<p>
When you use the Virtual Media Manager to move a disk image,
Oracle VM VirtualBox updates all related configuration files
automatically.
</p>
<note>
<p>
Always use the Virtual Media Manager or the
<userinput>VBoxManage modifymedium</userinput> command to move a
disk image.
</p>
<p>
If you use a file management feature of the host OS to move
a disk image to a new location, run the <userinput>VBoxManage
modifymedium --setlocation</userinput>
command to configure the new path of the disk image on the
host file system. This command updates the Oracle VM VirtualBox
configuration automatically.
</p>
</note>
</li>
<li>
<p>
<b outputclass="bold">Remove</b> an image from the
known media. You can optionally delete the image file when
removing the image.
</p>
</li>
<li>
<p>
<b outputclass="bold">Release</b> an image to detach it
from a VM. This action only applies if the image is currently
attached to a VM as a virtual hard disk.
</p>
</li>
<li>
<p>
<b outputclass="bold">Clear</b> all inaccessible disk
images from the list. The disk images are released from the
VMs they are attached to and removed from the known media.
</p>
<note>
<p>
This option is for optical disks and floppy disks only.
</p>
</note>
</li>
<li>
<p>
<b outputclass="bold">Search</b> for an image by name
or UUID.
</p>
</li>
<li>
<p>
View and edit the <b outputclass="bold">Properties</b>
of a disk image.
</p>
<p>
Available properties include the following:
</p>
<ul>
<li>
<p>
<b outputclass="bold">Type:</b> Specifies the
snapshot behavior of the disk. See
<xref href="hdimagewrites.dita#hdimagewrites"/>.
</p>
</li>
<li>
<p>
<b outputclass="bold">Location:</b> Specifies the
location of the disk image file on the host system. You
can use a file dialog to browse for the disk image
location.
</p>
</li>
<li>
<p>
<b outputclass="bold">Description:</b> Specifies a
short description of the disk image.
</p>
</li>
<li>
<p>
<b outputclass="bold">Size:</b> Specifies the size
of the disk image. You can use the slider to increase or
decrease the disk image size.
</p>
</li>
<li>
<p>
<b outputclass="bold">Information:</b> Specifies
detailed information about the disk image.
</p>
</li>
</ul>
</li>
<li>
<p>
<b outputclass="bold">Refresh</b> the property values
of the selected disk image.
</p>
</li>
</ul>
<p>
To perform these actions, highlight the medium in the Virtual
Media Manager and then do one of the following:
</p>
<ul>
<li>
<p>
Click an icon in the Virtual Media Manager toolbar.
</p>
</li>
<li>
<p>
Right-click the medium and select an option.
</p>
</li>
</ul>
<p>
Use the <b outputclass="bold">Storage</b> page in a VM's
<b outputclass="bold">Settings</b> window to create a new
disk image. By default, disk images are stored in the VM's folder.
</p>
<p>
You can copy hard disk image files to other host systems and then
import them in to VMs from the host system. However, some Windows
guest OSes may require that you configure the new VM in a similar
way to the old one.
</p>
<note>
<p>
Do not simply make copies of virtual disk images. If you import
such a second copy into a VM, Oracle VM VirtualBox issues an error
because Oracle VM VirtualBox assigns a universally unique identifier
(UUID) to each disk image to ensure that it is only used one
time. See <xref href="cloningvdis.dita#cloningvdis"/>. Also, if you want to
copy a VM to another system, use the Oracle VM VirtualBox import and
export features. See <xref href="ovf.dita#ovf"/>.
</p>
</note>
</body>
</topic>
|
