[PROBLEM]
After copying an ext2-partition (13GB) to a different HDD (70GB) using Norton Ghost, I've experienced an interesting problem:
"df -H" said, that the new partition was 70GB, but when copying files, I suddenly got
"No space left on device"
to my surprise, the disk said it was full at exactly the size of the "old" partition the image came from (13GB), although df said that there was plenty of space still unused.