umount don`t work, why? Help.

Can somebody tell to me why I can`t umount /var/tmp on my disk because that is like /tmp:

Filesystem Size Used Avail Use% Mounted on
/dev/hda2 7.7G 248M 7.1G 4% /
/dev/hda1 76M 21M 52M 30% /boot
/dev/hda8 84G 54M 80G 1% /home
none 505M 0 505M 0% /dev/shm
/dev/hda7 1012M 33M 928M 4% /tmp
/dev/hda6 7.7G 2.0G 5.4G 28% /usr
/dev/hda5 7.7G 273M 7.1G 4% /var
/tmp 1012M 33M 928M 4% /var/tmp

When I execute: umount /var/tmp and after that df -h all look fine, no last line on list:
/tmp 1012M 33M 928M 4% /var/tmp

But when I reboot server that come back again...why?
How I can fix that?

Here is /etc/fstab:

/dev/hda2 / ext3 defaults,usrquota 1 1
/dev/hda1 /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
/dev/hda8 /home ext3 defaults,usrquota 1 2
none /proc proc defaults 0 0
none /dev/shm tmpfs noatime,nosuid,noexec,nodev 0 0
/dev/hda7 /tmp ext3 noatime,nosuid,noexec,nodev 1 2
/dev/hda6 /usr ext3 defaults,usrquota 1 2
/dev/hda5 /var ext3 defaults,usrquota 1 2
/dev/hda3 swap swap defaults 0 0


Thanks

 

 

 

 

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