. . . See, ubiboot 0.3.3 searches for the conf files in this order: 1.) mtd4/ 2.) mtd5/ 3.) mmcblk0p1/boot/ So if you take into use your mtd4, for example, and put your ubiboot.conf and cpio there, it will find that first and not try to search for files on mmcblk0p1/boot/