Hi Lukasz,
On the page http://iso.qa.ubuntu.com/qatracker/milestones/420/builds/226354/downloads "Download links for Ubuntu Desktop amd64", there is a minor error. It refers to "MD5 checksum" and it should refer to "SHA256 checksum".
I installed the iso with no problems.
HTH,
Ian
--
-- ACCU - Professionalism in programming - http://www.accu.org
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