ERROR: /home/hamdy/master/poky/build/tmp/work/intel_corei7_64-poky-linux/core-image-x11/1.0-r0/core-image-x11-1.0/hddimg/rootfs.img execeeds 4GB,
ERROR: this doesn't work on FAT filesystem, you can try either of:
ERROR: 1) Reduce the size of rootfs.img
ERROR: 2) Use iso, vmdk or vdi to instead of hddimg

ERROR: Function failed: build_hddimg (log file is located at /home/hamdy/master/poky/build/tmp/work/intel_corei7_64-poky-linux/core-image-x11/1.0-r0/temp/log.do_bootimg.24259)
ERROR: Logfile of failure stored in: /home/hamdy/master/poky/build/tmp/work/intel_corei7_64-poky-linux/core-image-x11/1.0-r0/temp/log.do_bootimg.24259
ERROR: Task 8 (/home/hamdy/master/poky/openembedded-core/meta/recipes-graphics/images/core-image-x11.bb, do_bootimg) failed with exit code '1'