[yocto] when checksums collide -- the saga of linux-2.6.37.2.tar.bz2

[Paul Eggleton]

On Friday 15 July 2011 11:47:44 Robert P. J. Day wrote:
> unsurprisingly, the fetch for the linux tarball still failed for the
> same reason as before -- incorrect checksums.  huh.  i typically don't
> expect to see that in a simple fetch.  so check KERNELORG_MIRROR (http
> site), *manually* download that tarball and, sure enough, its md5 and
> sha256 sums are the (incorrect) ones that bitbake is reporting, which
> don't match what's expected.  how odd.  (i verified this two
> additional times, same result.)
> 
>   just as a test, i edited the bitbake.conf and changed
> KERNELORG_MIRROR to refer to the kernel ftp site, cleared out the
> remnants of that fetch, re-ran it and ... success!  huh?  so the
> tarball via http is broken, but the one via ftp is good?  but it was
> late, so i just threw up my hands and went to bed.
> 
>   this morning, manually download both tarballs (ftp and http), check
> their sums and ... they match!  reset everything, go back to the
> original http KERNELORG_MIRROR value and it's all good.  what the heck
> was *that* all about?

Do you still have the tarball with the bad md5sum? Can you diff the contents? 
Or was it simply a case of the bad tarball being truncated?

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre