So, this problem has a little backstory. I bought my external hard drive and formatted it as HTS+ Journaled on my Mac. Recently I decided I would try Ubuntu, but it turns out I can't even read the hard drive on Linux. I tried a couple things (like changing permissions and other various stuff, that I'm not even sure about honestly). Turns out I wasn't ready for Linux anyway, and I reinstalled Mac OS X (albeit, back to Tiger, since I don't have Leopard disks anymore). Now I plug in my external hard drive and nothing shows up! I see it in the Disk Utility and it has two partition types, Linux, and Linux_Swap. I never partitioned the hard drive or erased it (I'm pretty sure). Maybe I got it so it can only read on Linux now? I really can't tell. I have all my photos and music on here, and I can't afford to lose them. Edit: I did mess around with "chown" commands in Linux and changed owners. Is there a way to change it back or undo ownership? Thanks.