Hi Alexander,
link to my u-boot https://github.com/fedya/u-boot-yse5250
Please change the boot command and include the commands
Changed to this bootcmd=md 40800000 10;imi 40800000;bootm 40800000
[YSE5250@omv]# boot 40800000: 56190527 ba6b0d61 9850d952 08484800 '..Va.k.R.P..HH. 40800010: 00800040 00800040 8a221c4c 00020205 @...@...L."..... 40800020: 756e694c 2e332d78 302e3331 3863722d Linux-3.13.0-rc8 40800030: 00000000 00000000 00000000 00000000 ................
## Checking Image at 40800000 ... Legacy image found Image Name: Linux-3.13.0-rc8 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4737032 Bytes = 4626 KiB Load Address: 40008000 Entry Point: 40008000 Verifying Checksum ... OK ## Current stack ends at 0xc3cfbcc8 * kernel: cmdline image address = 0x40800000 ## Booting kernel from Legacy Image at 40800000 ... Image Name: Linux-3.13.0-rc8 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4737032 Bytes = 4626 KiB Load Address: 40008000 Entry Point: 40008000 Verifying Checksum ... OK kernel data at 0x40800040, len = 0x00484808 (4737032) ## No init Ramdisk ramdisk start = 0x00000000, ramdisk end = 0x00000000 Loading Kernel Image ... OK OK kernel loaded at 0x40008000, end = 0x4048c808 ERROR: booting os 'Unknown OS' (1) is not supported
This is really weird and I am pretty sure that this is not supposed to happen with the code that we have in mainline. I think you have two options here:
1. Get mainline U-Boot running on your board that works with the uImage that os created from mainline Linux
2. Debug your U-Boot version why it does not handle the uImage like it is supposed to.
Option 1 will be the more rewarding alternative of course.
Best wishes Detlev