Sorry for creating a new post, but I cannot find an answer for this which seems to be an easy problem.
I have a fat32 partition and created a corresponding entry in /etc/fstab to be mounted at /home/windows, directory, which does exist. In fact, I have asked to the installation program to do it (now I guess I should have done it by hand).
When booting the system with tyhis new entry, I get the message in the title and, afterwards, a complain about the partition being write-protected, but failing to mount it read only.
The main point is that when I use mount -a or something like mount -tvfat /dev/sda1 /home/windows, it jusk works perfectly well !
It used to work just fine with FC4, as it should, I guess.