I have a 2TB Segate drive that is partitioned into two, both HFS. The larger partition has recently stopped showing up and now won't mount. When I go to Disk Utility in OSX and try to mount it manually it tells me to run First Aid. When I do try to verify the disk I see the error "Invalid content in journal" and eventually "The volume Samsung 1 was found corrupt and needs to be repaired." However, when I do a repair nothing comes of it and it will still not mount. Any ideas?