retrieval of [tmp/image/media/core/release/media_info/synthesis.hdlist.cz] failed
[md5sum mismatch]
problem reading synthesis file of medium "Core Release"
After that, similar messages for Nonfree and Tainted follow and the installation halts.
I have tried updating the media_info files several times, thinking that it might be a bad sync thing, but I always get the same message.
In the past I have installed various instances of 5 and even 6 beta this way and it worked every time. Trying to do the same with 6 and Cauldron fails. Is there something I could try to make this work?