Comment 2 for bug 1989100

This is how our tests run virt-install:

# virt-install --connect qemu:///system --quiet --name VmNotInstalled --os-variant fedora28 --memory memory=130,maxmemory=150 --check path_in_use=off --wait -1 --noautoconsole --disk path=/var/lib/libvirt/images/VmNotInstalled.qcow2,device=disk,boot_order=2,bus=virtio,readonly=off,shareable=off,discard=unmap,driver_name=qemu,driver_type=qcow2 --network network=default,mac=52:54:00:74:37:e6,model=virtio,boot_order=1,link_state=up --network bridge=virbr0,mac=52:54:00:f1:23:41,model=rtl8139,link_state=up --graphics type=vnc,listen=127.0.0.1,port=-1 --graphics type=spice,listen=127.0.0.1 --cdrom /var/lib/libvirt/novell.iso --autostart --vcpus vcpus=2,maxvcpus=8,sockets=2,cores=2,threads=2 --boot uefi

The important bit seems to be "--boot uefi". If I leave that out, installation starts.