<p><emi>virt-manager</emi> is the only virtualization
solution that we present that allows theo use of a Persistent
Storage.</span> See [[Rrunning Tails from a USB
image|virt-manager#usb_image]].</p>

<p><i>virt-manager</i> is the only virtualization
solution that allows to use a Persistent
Storage. See [[running Tails from a USB
image|virt-manager#usb_image]].</p>

*KVM* is the module of the Linux kernel that interacts with the virtualization features of the processor.

*QEMU* is the virtualization software that emulates virtual processors and peripherals based on *KVM* and that starts and stops virtual machines.

*libvirt* is a library that allows *virt-manager* to interact with the virtualization capabilities provided by *QEMU*.

*SPICE* is a protocol that allows to visualize the desktop of virtual machines.

[[Download a USBTails as an ISO image|install/download-iso]], instead of an ISO USB image.

[[Download Tails as an ISO image|install/download-iso]], instead of a USB image.

To create a new virtual machine, choose <span class="menuchoice"> <span class="guimenu">File</span>&nbsp;▸ <span class="guimenuitem">b>File&nbsp;▸ New Virtual Machine</span></spanb>.

To create a new virtual machine, choose <b>File&nbsp;▸ New Virtual Machine</b>.

If you get the error message
"<b>Error starting domain: Requested operation is not valid: network 'default' is not active</b>",
then try to start the default virtual network:

<ol>
<li>Click on **localhost (QEMU)**.</li>
<li>Choose <span class="menuchoice">
**<b>QEMU/KVM - Not Connected</b>.</li>
<li>Choose <b>Edit**&nbsp;▸
** Connection details**</span> to</b>
to administer the connection to your local
*<i>QEMU*</i> system.</li>
<li>Click on **<b>Virtual Networks**</b> tab, then
select the **<b>default**</b> virtual network in
the left pane.</li>
<li>Click on the [[!img lib/media-playback-start.png alt="Start Network"
link="no" class="symbolic"]] icon on the bottom of the left pane to
start the default virtual network.</li>
</ol>

<ol>
<li>Click on <b>QEMU/KVM - Not Connected</b>.</li>
<li>Choose <b>Edit&nbsp;▸ Connection details</b>
to administer the connection to your local
<i>QEMU</i> system.</li>
<li>Click on <b>Virtual Networks</b> tab, then
select the <b>default</b> virtual network in
the left pane.</li>
<li>Click on the [[!img lib/media-playback-start.png alt="Start Network"
link="no" class="symbolic"]] icon on the bottom of the left pane to
start the default virtual network.</li>
</ol>

<span class="command-placeholder">size</span> has to be at least <span class="command">7200M</span>`7200M`.

<span class="command-placeholder">size</span> has to be at least `7200M`.

In the **configuration view**, choose **VirtIO Disk 1** or **IDE Disk 1**

In the configuration view, choose **VirtIO Disk 1** or **IDE Disk 1**

Expand the **Advanced options** and set **Disk bus** to **USB**.

Expand the **Advanced options**.

Select **USB Disk 1Click on **Boot Options** in the left pane.

Click on **Boot Options** in the left pane.