openstack/diskimage-builder
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diskimage-builder/diskimage_builder/elements/iso
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Steve Baker eb395ec558 Remove EOLed CentOS 7 and RHEL 7 
CentOS 7 reached EOL on 30th June 2024[1] and RHEL 7 ended its
maintenance support 2 phase[2] the same date.

This change removes the ablity to build images derived from these base
images.

The centos and centos-minimal elements now default to a DIB_RELEASE
value of 9-stream.

[1] https://www.redhat.com/en/topics/linux/centos-linux-eol
[2] https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux/rhel-7-end-of-maintenance

Change-Id: Ic50e08d9f84bbd319129be236d799eade5f40be8
2024-07-05 09:53:29 +12:00
..
cleanup.d Remove EOLed CentOS 7 and RHEL 7 2024-07-05 09:53:29 +12:00
post-install.d Remove EOLed CentOS 7 and RHEL 7 2024-07-05 09:53:29 +12:00
element-deps Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
package-installs.yaml Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
pkg-map Change paths for bootloader files in iso element 2021-03-03 11:01:14 +01:00
README.rst Remove the deprecated ironic-agent element 2021-01-21 14:06:08 +01:00

README.rst

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