iso¶
Generates a bootable ISO image from the kernel/ramdisk generated by the
elements baremetal
, ironic-python-agent-ramdisk
(from
ironic-python-agent-builder) 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-python-agent-ramdisk element¶
When used with ironic-python-agent-ramdisk
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