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openshift-docs/modules/virt-adding-a-boot-source-web.adoc
Lavanya d74b5bc32c CNV-6750 Usability Enhancements <<Feb 16>>
CNV-6750 usability enhancements [Feb 15]

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// Module included in the following assemblies:
//
// * virt/vm_templates/virt-creating-vm-template.adoc
[id="virt-adding-a-boot-source-web_{context}"]
= Adding a boot source for a virtual machine template
A boot source can be configured for any virtual machine template that you want to use for creating virtual machines or custom templates. When virtual machine templates are configured with a boot source, they are labeled *Available* in the *Templates* tab. After you add a boot source to a template, you can create a new virtual machine from the template.
There are four methods for selecting and adding a boot source in the web console:
* *Upload local file (creates PVC)*
* *Import via URL (creates PVC)*
* *Clone existing PVC (creates PVC)*
* *Import via Registry (creates PVC)*
.Prerequisites
* To add a boot source, you must be logged in as a user with the `os-images.kubevirt.io:edit` RBAC role or as an administrator. You do not need special privileges to create a virtual machine from a template with a boot source added.
* To upload a local file, the operating system image file must exist on your local machine.
* To import via URL, access to the web server with the operating system image is required. For example: the Red Hat Enterprise Linux web page with images.
* To clone an existing PVC, access to the project with a PVC is required.
* To import via registry, access to the container registry is required.
.Procedure
. In the {VirtProductName} console, click *Workloads* -> *Virtualization* from the side menu.
. Click the *Templates* tab.
. Identify the virtual machine template for which you want to configure a boot source and click *Add source*.
. In the *Add boot source to template* window, click *Select boot source*, select a method for creating a persistent volume claim (PVC): *Upload local file*, *Import via URL*, *Clone existing PVC*, or *Import via Registry*.
.. Optional: Click *Mount this as a CD-ROM boot source* to add an additional disk and mount the disk as a CD-ROM.
. Enter a value for *Persistent Volume Claim size* to specify the PVC size that is adequate for the uncompressed image and any additional space that is required.
.. Optional: Enter a name for *Source provider* to associate the name with this template.
.. Advanced: Click *Storage class* and select the storage class that is used to create the disk.
.. Advanced: Click *Access mode* and select an access mode for the persistent volume. Supported access modes are: *Single User (RWO)*, *Shared Access (RWX)*, and *Read Only (ROX)*.
.. Advanced: Click *Volume mode* if you want to select *Block* instead of the default value *Filesystem*.
. Select the appropriate method to save your boot source:
.. Click *Save and upload* if you uploaded a local file.
.. Click *Save and import* if you imported content from a URL or the registry.
.. Click *Save and clone* if you cloned an existing PVC.
Your custom virtual machine template with a boot source is listed in the *Templates* tab, and you can create virtual machines by using this template.