I physically dropped an iMac tonight, shattering the protective screen. The computer was sleeping when it got dropped. The drop was from a couple feet high, and booting up looked promising until I realized that I am no longer able to boot into the OS X partition, only the side-by-side bootcamp Windows partition. On holding down
alt during boot, only my Windows option is displayed for system to boot into.
This seems like a strange way for things to break due to physical damage given that the Windows partition is working perfectly and there is a single physical drive.
Where can I go from here? What information can I provide to help in diagnosis?
Additional info: All data is backed up to a local Time Capsule. This is an old (2007?) iMac running I believe ~10.6.5, though I'm not totally sure on exact version. The bootable partition is Windows 7.