hey,

I recently upgraded my system to ubuntu 12.04.2 LTS i think it went smoothly until it restarted. the initial restart came up with a loading screen tht said /tmp folder needed to be mounted press m to manually mount or s to skip but neither button worked so i unpluged it. now no matter what i do or what code i put in i've even tried grub (which doesn't seem to be worth a squat) and updating it with a usb but i get nowhere. and i still can not get out of the loading screen for my system to boot up. i don't have any cd installation and i broke my usb trying to get it to work. i don't know what else to do besides take it into the geek squad.

Marking a thread urgent is a good way to get ignored.

If your machine won't boot, you'll need a live CD or a bootable USB drive. Boot with it, mount your / partition, and then repair whatever you have going on. There is no way to tell from the info that you've given.

Grub is a boot loader, if the kernel is found, grub is working. Do you have /tmp on a separate partition?

Partitions get auto mounted in /etc/fstab.

no is it possible to obtain one?

It's a littlebit hard from your description to understand what happened, exactly. What did you unplug? Where did you "put in" code?
Are you still getting the message that /tmp cannot be mounted?
What do you mean by "updating it with usb"?
What do you mean by "breaking the usb stick trying to get it to work".
I also do not understand "no is it possible to obtain one?" You can download iso images for your distro here:
http://www.ubuntu.com/download/desktop
But I guess this isn't your question?

Do you have access to another working computer that you can use to create a new live cd / usb?

I had a similar problem recently where I had added a bind mount to the /etc/fstab that was referring to a partition which was not mounted at boot time yet.

As teckk said your best shot is to boot into a live system. Then mount the partition that contains the operating system, and open the fstab.

If you are unsure what the problem could be post the fstab here. In any event, please post more specific descriptions of the error messages that you are getting rather than "something doesn't work"