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vm: note on skip forced disk controllers uefi secure boot #616

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vm: note on skip forced disk controllers uefi secure boot #616

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vm: note on skip forced disk controllers uefi secure boot
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12 changes: 12 additions & 0 deletions source/adminguide/virtual_machines.rst
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Expand Up @@ -175,6 +175,18 @@ To create an Instance from a Template:
specified at the Instance or Template level. For an existing Instance its settings can be updated while it is in
stopped state by admin.

**KVM**

Instances running on the KVM hypervisor with UEFI Secure Boot have disk controllers automatically enforced as following:

- Windows OS instances use SATA
- Non-Windows OS instances use VirtIO

Starting with 4.20.3 and later, this behavior can be overridden by setting the following template or instance detail to true:

``skip.force.disk.controller = true``

When set to true, disk controller enforcement is skipped, and the controllers defined by template/instance details are used. If the detail is added at both template and instance level, the instance detail takes precedence.

Install Required Tools and Drivers
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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