On Mac Book Pro retina ( 2014 ) Mavericks running Boot Camp, one hard drive partitioned to dual boot OS X and Windows 8.
While messing on Windows 8 I mistakenly deleted a partition which is now showing unallocated 621 MB, using Disk Management. ( it was showing a weird phantom SD drive which i thought was some improperly mounted ).
OS X won't boot and won't show in Boot Camp. Cmnd + R goes into internet recovery. My main data HD Mac partition is fine and accessible ( can copy data at least to backup my files).
I never attempted any formatting and stopped a Windows partition recovery utility as i googled further and turned out it is(maybe) a bad idea.
How can I recover this partition/get back into OS X without losing data, having to reinstall both OS X and Windows?
Edit: Just run diskutil list and this is what I get.