I was having the same issue. I end up installing SQL express 2012 manually, Please remember to use the system account (PSexec) to run the commands from the Bigfix actions. If I didn’t use the system account, then it will fail to communicate.
We are also experiencing this issue. We will be opening a PMR on this. Until then do you have any information beyond the ‘SQL 2005 or SQL 2008’ requirement in the IBM Support Knowledge center? Ie, any DB
until the fix is not released, you can use the attached .bes file (single action fixlet) to install MSSQL 2012 SP1 on your x64 computer before launching the bare metal server installation