Converting IP.Board passwords to SHA-256?

[Kami no Ou]

I'm currently converting as much of IP.Board 3.4.7 to my own custom forum software as possible.
However, IP.Board stores its passwords as MD5, which are stored in another layer of MD5 (according to the docs).
My software stores passwords as SHA-256.
Both use salt with the same hashing method as they hash their passwords.

Is there a way to convert IP.Board passwords to SHA-256 passwords?
I tried doing so through MySQL, but that command doesn't work (requires a library, I'm afraid of modifying such important services on a production server).

 

And why did this get deleted? Some kind of propaganda?

[Charles]

There's no way to "convert" a hash.

Beyond that: obviously we cannot help you not use our software. That would be ... odd