Interesting... I'll have to try that. I've been getting this error as well, and I've solved it in the past, but I have the sudden urge to [re]install Windows 7 on my MacBook, and this is getting in my way. As for many others posting to this thread, reformatting is NOT an option. I don't have means of backing up my video and music files that total to 300 GB+. I just "fsck -f"'d twice. Before that I deleted large Virtualbox VM files, and before THAT I defragged overnight via iDefrag. I'm going to try and partition before I try this.
Also, is there any way to tell what files are in the way of such an error? That would help A LOT of people get through this frustrating situation.
Thanks for the idea!
EDIT: I just tried to partition and it spit the error at me. Gonna try the process Tommy mentioned.
EDIT 2: I just did Tommy's process, and I tried to make a 60 GB partition. After a minute or so of "shrinking disk" it told me to try to make a smaller one. That's what's running right now. I've also tried this exact method, except I have Paragon NTFS for Mac OS X installed, and I told Disk Utility to format the partition to be created as Windows NT File System (NTFS) to try and save a step when installing Windows 7 itself.
EDIT 3: Tried with a 32 GB partition, and it still complains that I need to make a smaller partition. I'm gonna try and do this again via OS X vs being booted up from the installer.. I give up if it still complains, as I've deleted and/or moved anything too large for it. Screw it if it doesn't want to cooperate. I'm posting this from my Linux PC in case anyone is wondering how I have internet access...
i did everything that tommy guy you mentioned said to do and moved big files (deleted) erased free space repaired disk and all.
now this thread is huge, im going to read more before i do the defrag rout.
i might just wait till winter break to do boot camp as i plane to do a clean install.
damm i just wanna play call of duty modern warfare 2 and left 4 dead 2