OCPBUGS#7659: Change the parameter from --qemu-commandline to --disk

Author: xenolinux

modules/installation-ibm-z-kvm-user-infra-machines-iso.adoc

@@ -54,6 +54,5 @@ $ virt-install --noautoconsole \
    --disk {disk} \
    --import \
    --network network={network},mac={mac} \
-   --qemu-commandline="-drive \
-if=none,id=ignition,format=raw,file={ign_file},readonly=on -device virtio-blk,serial=ignition,drive=ignition"    
+   --disk path={ign_file},format=raw,readonly=on,serial=ignition,startup_policy=optional
 ----