1. Use the fis init command to initialize the flash image system (FIS). Optionally, you can use the -f option to erase the contents of the flash memory; without the option, the index to the contents is overwritten. The following example shows the procedure: RedBoot> fis init About to initialize [format] FLASH image system -continue (y/n)? y *** Initialize FLASH Image System Warning: device contents not erased, some blocks may not be usable ... Unlock from 0x50fe0000-0x51000000: . ... Erase from 0x50fe0000-0x51000000: . ... Program from 0x01fdf000-0x01fff000 at 0x50fe0000: . ... Lock from 0x50fe0000-0x51000000: . 2. Use the fis list command to show the partitions on the flash device. This initialization procedure should give you a flash device with partitions like the following: RedBoot> fis list Name FLASH addr Mem addr Length Entry point RedBoot 0xBE000000 0xBE000000 0x00050000 0x00000000 RedBoot config 0xBE3C0000 0xBE3C0000 0x00001000 0x00000000 FIS directory 0xBE3D0000 0xBE3D0000 0x00010000 0x00000000 RedBoot> The exact memory address locations of each partition will vary from board to board.