Comment # 2 on bug 1203562 from James Fehlig

(In reply to Antoine Ginies from comment #0)
> [Tue, 20 Sep 2022 12:06:58 virt-install 18235] DEBUG (cli:204) Launched with
> command line: /usr/bin/virt-install -d --name alp-demo
> --os-variant=opensuse15.3 --boot
> uefi,loader_type=pflash,loader=/usr/share/qemu/ovmf-x86_64-smm-opensuse-code.
> bin,nvram_template=/usr/share/qemu/ovmf-x86_64-smm-opensuse-vars.bin
> --import --disk /var/tmp/alp-demo/alp-demo.qcow2,bus=sata --memory 2048
> --console pty,target_type=virtio --tpm
> backend.type=emulator,backend.version=2.0,model=tpm-tis --network
> network=default --transient --autoconsole graphical

This command is not quite right. First, you've specified firmware autoselection
with '--boot uefi', but then also tried to explicitly specify a firmware by
adding
'loader=/usr/share/qemu/ovmf-x86_64-smm-opensuse-code.bin,nvram_template=/usr/share/qemu/ovmf-x86_64-smm-opensuse-vars.bin'.
libvirt commit de2a338dce would help with the error reporting. E.g. on TW,
which has that commit, the command would fail with a better error message

virt82:~ # virt-install --name leap15.4-kvm --os-variant=opensuse15.4 --boot
uefi,loader.type=pflash,loader=/usr/share/qemu/ovmf-x86_64-opensuse-4m-code.bin,nvram_template=/usr/share/qemu/ovmf-x86_64-opensuse-4m-vars.bin
--disk /vm_images/jim/images/leap15.4-kvm/disk0.qcow2,format=qcow2 --memory
2048 --console pty,target_type=virtio --network bridge=br0 --autoconsole
graphical --location
https://download.opensuse.org/distribution/leap/15.4/repo/oss/

Starting install...
ERROR    loader attribute 'type' cannot be specified when firmware
autoselection is enabled

Also note your command has 'loader_type=pflash'. It should be
'loader.type=pflash'. If you want to explicitly specify a firmware, do not also
use autoselection. A proper boot command line option would be

--boot
loader.type=pflash,loader.readonly=yes,loader=/usr/share/qemu/ovmf-x86_64-opensuse-4m-code.bin,nvram_template=/usr/share/qemu/ovmf-x86_64-opensuse-4m-vars.bin

I would close this as invalid, but it is probably worth backporting commit
de2a338dce to the libvirt 8.0.0 package for the improved error handling.