I think I made a mistake; I didn’t describe my problem clearly. So, now I fix it. My purpose is: find out a way to boot a Linux Kernel from USB (FAT16).
Here are the steps I‘ve made:
1. Get some kernel images (zImage, uImage) which I built (kernel version 2.6.22.11). 2. Go to the board (T-Engine/SH7727) which is ported U-boot and try some commands: a. usb start b. fatload usb 0:1 0x00200000 uimage c. bootm 0x00200000
And I always get this error: Wrong Image Format for bootm command ERROR: can't get kernel image!
I didn’t set ‘bootargs’ and root file system because I think they will have no effect NOTE: CFG_SDRAM_BASE = 0x8c000000 CFG_LOAD_ADDR = 0x8e000000 Some results, I checked:
[root@twiki boot]# file uImage uImage: PPCBoot image
I also tried: mkimage -A sh -O linux -T kernel -C gzip -a 0x8e000000 -e 0x8e000000 -n Linux -d linux.bin.gz uImage
best regards