How can I disable secure boot using virt-install cli?

[Daniel P. Berrangé]

On Wed, Aug 03, 2022 at 11:00:30AM -0500, Andrea Bolognani wrote:
> On Wed, Aug 03, 2022 at 01:17:33PM +0800, Lucas Liu wrote:
> > Hello all:
> >
> > I am looking for a way to disable secure boot for UEFI guests:
> > In 3.2.0 I use the command blow to achieve it:
> >
> > # virt-install --name GuestOne --location #URL --machine q35 --vcpus=2
> > --memory 4096 --file-size=20 --boot uefi --boot
> > nvram.template=/usr/share/edk2/ovmf/OVMF_VARS.fd
> >
> > However, in 4.0.0 I cannot get the same result for this cmd
> >
> > Expect VM is booted with secureboot disabled. But the actual result is the
> > VM is booted with secureboot enabled.
> >
> > # mokutil --sb-state
> > SecureBoot enabled
> >
> > ...
> > <os>
> >     <type arch='x86_64' machine='pc-q35-rhel9.0.0'>hvm</type>
> >     <loader readonly='yes' secure='no'
> > type='pflash'>/usr/share/edk2/ovmf/OVMF_CODE.secboot.fd</loader>
> >     <nvram
> > template='/usr/share/edk2/ovmf/OVMF_VARS.secboot.fd'>/var/lib/libvirt/qemu/nvram/rhel9_VARS.fd</nvram>
> >     <boot dev='hd'/>
> >   </os>
> > ...
> >
> > It seems it still creates guests with
> > "/usr/share/edk2/ovmf/OVMF_VARS.secboot.fd" as the nvram template.
> 
> This should do what you want:
> 
>   --boot uefi,firmware.feature0.name=enrolled-keys,firmware.feature0.enabled=no,firmware.feature1.name=secure-boot,firmware.feature1.enabled=yes
> 
> A bit of a mouthful, I know :) The equivalent XML snippet would be
> 
>   <os firmware='efi'>
>     <firmware>
>       <feature enabled='no' name='enrolled-keys'/>
>       <feature enabled='yes' name='secure-boot'/>
>     </firmware>
>   </os>

This seems to kas to leave secureboot enabled, but with no enrolled
keys.

To disable secureboot fully I use this

 --boot firmware=efi,firmware.feature0.enabled=no,firmware.feature0.name=secure-boot \



With regards,
Daniel
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