df reports wrong disk usage
I began rescuing data from a 35 GB ext3 filesystem on a damaged hard drive by copying the corresponding device file with dd_rhelp, in order to obtain a disk image.
Unfortunatly, the drive I used didn't have enough space to hold both the log file, which permits dd_rhelp to manage dd_rescue and to resume its job, and the image. So, I had to stop dd_rhelp as it couldn't write anymore to the sane drive. The problem is that the disk image file is about 35 GB, but df reports only 3.7 GB used on the drive!
I got a bigger drive, and as I would like not to restart the recovery from the beginning, I copied the log and disk image files onto it. It seems both files were copied properly, but df still reports a wrong disk space usage on the new drive: 2.3 GB now, and of course the disk image file has still the same size (about 35 GB).
I'd like to know if I don't need to bother about what df says.
Thanks in advance,