1. install iscsi target server

    create a iscsi img file by dd cmd

    publish the target

  2. install tftp server

  3. install gpxe

    download the gpxe package

    make the undionly.kpxe and cp to /tftpboot/gpxe

  4. install dhcp server

    add options to dhcp server

    in the subnet section, add host section for every blade server

  5. attach the usb dvd to C7000 OA and connect it to one blade server

    restart the blade server and begin the OS installation

    for CentOS 6.5, select the Specialized Storage Devices and add the iSCSI target as the OS disk.