I created an install with a root partition of type ext3. Despite this, anaconda seems to have created the partition as ext4. When anaconda tried to mount it later during the install, it suffered a fatal error and exited. Repeating the install with ext4 was successful.
This was with F11 Snapshot 1 and anaconda-11.5.0.38-1 off the Desktop Live CD
Jeremy fixed this post-Beta.
This with with Snapshot 1. Are you sure its fully fixed?
Apparently not. We're getting reports of it piling up on another bug too. *** This bug has been marked as a duplicate of bug 495156 ***