<< This is what I got from typing "df":
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 49583 48835 -3218 107% /
/dev/ad0s1f 13134105 626433 11456944 5% /usr
/dev/ad0s1e 19815 4520 13710 25% /var
procfs 4 4 0 100% /proc
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What the hell are these things? Partitions? I see that something is at 107% capacity. >>
OK, these are your partitions. FreeBSD split up yout 14GB(or whatever) hard drive into 4 partitions. The listing shows the device name, # of 1K blocks total in that partition, # of used 1k blocks, the available amount of free blocks, the percentage of the partition used and where that partition is mounted in your root filesystem. As you can see, your root partition is only about 50MB. It set your largest partition to /usr (about 13GB) which makes sence, since that is where all of your software should (mostly) be installed. It is also where your netscape cache would be if you weren't using netscape as root
The first listed there is root. It's telling you it is somehow filled to 107% so it IS OVER full. You need to remove some stuff from there or your going to have some major problems.
<< I have 14 gigs free... why is it doing this? >>
If you have 14 gigs free, it's not on your root partition. Most of it is on your /usr partition. You must remember, even though unix has one virtual filesystem structure, there can be hundreds of seperate partitions and drives to make up what is your filesystem.
<< What can I do to increase the capacity of /dev/ad0s1a? >>
AFAIK, you would have to reinstall FreeBSD to change partition sizes.