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