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diskimage-builder/diskimage_builder/elements/iscsi-boot
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Hoang Trung Hieu a4648872ba Add iscsi-boot element for CentOS images 
This patch adds an element that handles the configuration for
creating a disk capable of being a remote root filesystem through
iSCSI on CentOS images.

Tested on Fujitsu Server and boot with BIOS and UEFI mode successfully.
- Tested Boot-From-Volume + EFI for centos7 with following elements:
  "centos7 vm devuser cloud-init-datasources dhcp-all-interfaces
   iscsi-boot dracut-regenerate block-device-efi"

Co-authored-By: Nguyen Van Trung <trungnv@vn.fujitsu.com>

Change-Id: Ia1f23d722dced6f254fd7aee86abe8066a72fa42
2018-06-25 12:01:52 +00:00
..
environment.d Add iscsi-boot element for CentOS images 2018-06-25 12:01:52 +00:00
finalise.d Add iscsi-boot element for CentOS images 2018-06-25 12:01:52 +00:00
post-install.d Add iscsi-boot element 2018-06-14 08:56:03 +07:00
element-deps Add iscsi-boot element 2018-06-14 08:56:03 +07:00
package-installs.yaml Add iscsi-boot element 2018-06-14 08:56:03 +07:00
README.rst Add iscsi-boot element for CentOS images 2018-06-25 12:01:52 +00:00

README.rst 

==========
iscsi-boot
==========
Handles configuration for the disk to be capable of serving as
a remote root filesystem through iSCSI. Currently, this element
can configure Ubuntu/Debian images and CentOS7 images.

It performs the following actions:

For Ubuntu/Debian images:
  * Installs the ``open-iscsi`` package.
  * Creates the ``etc/iscsi/iscsi.initramfs`` configuration file and sets
    ``ISCSI_AUTO=true`` within it.
  * Updates the initramfs to apply the changes.

For CentOS7 images:
  * Required ``dracut-regenerate`` element when performs ``disk-image-create``.
  * Updates ``network`` and ``iscsi`` into ``dracut-regenerate`` during
    pre-installs.
  * Updates ``GRUB_CMDLINE_LINUX_DEFAULT`` into ``/etc/default/grub``.