I'm also now having this problem with 10.10. One thing to note is that this did not happen with an "older" drive. I used to have an 80gb drive attached. Now I have a 1.5tb drive attached. I've only had this issue with the 1.5tb drive. If I can provide anything that might be helpful in diagnosing, please let me know.
I'm also now having this problem with 10.10. One thing to note is that this did not happen with an "older" drive. I used to have an 80gb drive attached. Now I have a 1.5tb drive attached. I've only had this issue with the 1.5tb drive. If I can provide anything that might be helpful in diagnosing, please let me know.