Generates a bootable ISO image from the kernel/ramdisk generated by the elements ``baremetal`` or ``ramdisk``. It uses isolinux to boot on BIOS machines and grub to boot on EFI machines. This element has been tested on the following distro(s): * ubuntu * fedora **NOTE**: For other distros, please make sure the ``isolinux.bin`` file exists at ``/usr/lib/syslinux/isolinux.bin``. baremetal element ----------------- When used with ``baremetal`` element, this generates a bootable ISO image named ``-boot.iso`` booting the generated kernel and ramdisk. It also automatically appends kernel command-line argument 'root=UUID='. Any more kernel command-line arguments required may be provided by specifying them in ``DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS``. **NOTE**: It uses pre-built efiboot.img by default to work for UEFI machines. This is because of a bug in latest version of grub[1]. The user may choose to avoid using pre-built binary and build efiboot.img on their own machine by setting the environment variable DIB\_UEFI\_ISO\_BUILD\_EFIBOOT to 1 (this might work only on certain versions of grub). The current efiboot.img was generated by the method build\_efiboot\_img() in 100-build-iso on Ubuntu 13.10 with grub 2.00-19ubuntu2.1. ramdisk element --------------- When used with ``ramdisk`` element, this generates a bootable ISO image named ``.iso`` booting the generated kernel and ramdisk. It also automatically appends kernel command-line argument 'boot\_method=vmedia' which is required for Ironic drivers ``iscsi_ilo``. **REFERENCES** [1] https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1378658