I've read some questions similar, but not the exactly the same problem...
I've moved my home directory to a separated partitión (Ubuntu 11.10) following this tutorial.
After confirming all my files and folders, I've installed Fedora 16, but forgot that one of those directories was encrypted by ecryptfs.
So I was surprised when all I found in my home folder was a file, Readme.txt, advising me that my folder was unmounted for security reasons and suggesting that I type on the command line ecryptfs-mount-Private (which didn't work), or click on labeled icon "access your private data" (which didn't work either).
After three days reading all I could find on the internet, I followed Dustin Kirkland's tutorial, but it couldn't find any .ecryptfs.
I'm sure that the data is somewere (the size of the moved dir is identical to the original one). Any help would be greatly appreciated. Thanks a lot.