[U-Boot] booting os 'Unknown OS' (1) is not supported

[Alexander Khryukin]

methinks that the problem in kernel.
I can boot "original" android kernel from any place: emmc, SD, fat
partition, USB-device, etc.



2014/1/20 Detlev Zundel <dzu at denx.de>

> 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 at omv]# boot
> > 40800000: 56190527 ba6b0d61 9850d952 08484800    '..Va.k.R.P..HH.
> > 40800010: 00800040 00800040 8a221c4c 00020205    @... at ...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
>
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