When I first installed Linux I started from an empty 4GB hard drive. I created 3 partitions.
hda1 - 600MB partition for linux mounted as /
hda2 - 400MB swap partition
hda3 - 3GB partition for my own files mounted as files/

I soon realized that the 600MB partition was not enough and I want to combine the linux partition with the 3GB files/ partition.

1. I unmounted files/ and deleted the directory.
2. I used fdisk to re-partition the drive and made a 3.6GB partition (hda1) and a 400MB swap partition (hda2).
3. I edited the fstab file and removed the /dev/hda3 that was mounted to files/

It seems to have worked. I rebooted and my system is fine. The only problem is when I use the "df" command it still says the old size of the hda1 partition.

Is there another file that needs to be changed to reflect the new size of the partitions?

Thanks.

I just had an idea. Is it possible to unmount hda1 and then mount it again? Maybe that's all it needs.

If anyone knows if this is possible, please reply.

Well I figured it out on my own. I did have to unmount the system and remount it. However, in between I had to resize the actual filesystem to match the partition size. Here's how for anyone else who is curious:

1. You have to boot from a rescue disc or a liveCD distro like knoppix
# resize2fs /dev/hda1

There are also options you can change if you don't want the filesystem to fill the whole partition. Read the manpages. Now mind you, this is AFTER I had already used fdisk to change the partition size. You can do the fdisk step after you resize the file system, but you should also do that while in the rescue or liveCD.