iso¶
Generates a bootable ISO image from the kernel/ramdisk generated by the
elements baremetal, ironic-agent 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 * debian
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 <image-name>-boot.iso booting the generated kernel and ramdisk.
It also automatically appends kernel command-line argument
‘root=UUID=<uuid-of-the-root-partition>’. 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 <image-name>.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.
ironic-agent element¶
When used with ironic-agent element, this generates a bootable ISO image named <image-name>.iso which boots the agent kernel and agent ramdisk.
REFERENCES
[1] https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1378658
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