diff --git a/fedora-build-opennebula-image.sh b/fedora-build-opennebula-image.sh
index 6222efc..ac26d7d 100755
--- a/fedora-build-opennebula-image.sh
+++ b/fedora-build-opennebula-image.sh
@@ -137,6 +137,14 @@ run_root systemctl enable systemd-timesyncd.service
 # Note: linux-firmware is not required our environment and takes almost 200M
 # uncompressed but is a direct dependency of kernel-core...
 run_root dnf -y install kernel grub2
+
+# Add support for virtio block devices at boot time.
+cat > /mnt/etc/dracut.conf.d/virtio-blk.conf <<EOF
+add_drivers="virtio-blk"
+EOF
+run_root dracut --force
+
+# Configure grub2.
 run_root grub2-install --target=i386-pc "${NBD_DEVICE}"
 run_root grub2-mkconfig -o /boot/grub2/grub.cfg