openstack/diskimage-builder
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4493208048
diskimage-builder/diskimage_builder/elements/iscsi-boot/README.rst
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

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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.