My system is imx28 based + linux-2.6.35. With ubifs as rootfs, booting time is quite long. As my understand, the booting time can be reduced with iniramfs as rootfs. following some introduction on web, I make a initramfs which can not been unpacked by kernel. But the initramfs made by ltib is work, so is it possible to get the detail steps about making initramfs.cpio.gz in ltib. thanks!