[OpenWrt-Devel] Trunk tl wdr4900 v1 boot fails on bootloader CRC check

Alberto Bursi bobafetthotmail at gmail.com
Sun Mar 10 07:20:05 PDT 2019

On 10/03/19 21:32, Sami Olmari via openwrt-devel wrote:
> Okay it wasn't 
> https://github.com/openwrt/openwrt/commit/576c69938bb38c7edfa23f220eb30cb5c1d0a726 
> nor the immediately next one 
> https://github.com/openwrt/openwrt/commit/0fbd3d23aadee0d95beef4f077a866dae7f4841a 
> so it's still unclear what commit really breaks this... but I'll try 
> to keep looking.. :)
> -- 
>  Sami Olmari
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel at lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel

The issue isn't a specific commit.

The issue is the kernel is too big.

The bootloader of this device only reads 0x29F000 bytes in hex or

2748416 bytes, around 2.6Mb in decimal.

In the Github PR (1) they see they can only work around this by

making an u-boot bootloader that can be loaded instead of the kernel.

Then this u-boot will load the kernel with no limitations.


[1] https://github.com/openwrt/openwrt/pull/1773

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