> df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/da0s1a 124M 60M 54M 53% /
/dev/da0s1f 2.1G 582M 1.3G 30% /usr
/dev/da0s1e 248M 6.0M 222M 3% /var
procfs 4.0K 4.0K 0B 100% /proc
mfs:26 248M 64K 248M 0% /tmp
fs.isi.deterlab.net:/mnt/projects/proj/WormTraffic 988G 149G 761G 16% /proj/WormTraffic
fs.isi.deterlab.net:/mnt/other/users/BCNeuman 597G 105G 444G 19% /users/BCNeuman
fs.isi.deterlab.net:/mnt/share 20G 9.7G 8.4G 54% /share
fs.isi.deterlab.net:/mnt/other/users/chinmays 597G 105G 444G 19% /users/chinmays


Can someone please tell me whether /tmp is a seperate partition over here?

/tmp is a ramdisk.

what do you mean by that, what is a ramdisk?
I am a newbie :-)
Can i just umount it?

A RAM-disk a virtual disk whose storage is physical memory instead of a real disk.
mfs is not exactly a ram-disk, but a VM (virtual memory) disk, so its size can be bigger than the amount of memory your machine has.

http://www.onlamp.com/pub/a/bsd/2000...y_Daemons.html

A ramdisk - a piece of RAM, pretending to be a disk. These have been around since MS-DOS 6 at least.

I suggest you don't remove it - at least not while the machine is running. If you don't like it, remove the line for /tmp from /etc/fstab and reboot - that will make it go away permanently, without making a mess.