How do I unmount /home2 ? (noob alert :) )

[BIGFOOT_PI]

Hi, I have been a 1 drive web hosting reseller for several years using cpanel and whm.
I recently got a new server with two 80gb drives. Unfortunately I Format/mounted my 2nd drive (through WHM) before I transferred all my customer accounts over from the old server. And apparently the ones using databases get messed up when go to /home2 instead of /home (since they were on /home on old server).
So to make things easier on me I have moved the couple little accounts off /home2 to /home through WHM. But I want to unmount /home2 before I transfer the big accounts. I searched the forums and someone said to just run "unmount /home2", but I assume that is a root command of some sort. New server is Centos4.2. And as I am a noob to anything outside of WHM/cPanel, I am not sure WHERE or HOW to get to a prompt where I can execute unmount /home2.
Any help is much appreciated for this here command line noob

WHM 10.8.0
Cpanel 10.8.1-R113
CentOS 4.2 i686

[pross]

change to root user first then just type

mount

it'll show you all mounted partitions then just

umount /home2 or whatever if it complains about being inuse try

lsof | grep /home2


hth

[BIGFOOT_PI]

Thanks, but thats the thing- WHERE do I type all this?
As I stated, I use cpanel and WHM, but I am not familiar with how to access a command line prompt to my server. My regular server administrator is unavailable that usually does this type of thing for me so Im trying to learn for myself.
Thanks

[ShockHosts]

You must use SSH to do any commands.. So If you have root you should be able to download a program called PuTTy...

http://the.earth.li/~sgtatham/putty/.../x86/putty.exe

Then login with your ROOT server username, password, hostname/ip...

type "su" and then execute:

mount

unmount /home2 or whatever if it complains about being inuse try

lsof | grep /home2

[BIGFOOT_PI]

AH! - I recall my admin mentioning putty in the past - thanks!

[BIGFOOT_PI]

crap- well mount lists the partitions/volumes ok, but when i do unmount /home2 it says :
"bash: unmount: command not found"

any ideas?

[ShockHosts]

Yeah... Tell me the outcome

[BIGFOOT_PI]

Yeah... Tell me the outcome

WHat do you mean?
The outcome is that it apparently didn't work...
I guess you missed my last post?

[sleddog]

The 'unmount' command is umount, without the "n".

[BIGFOOT_PI]

The 'unmount' command is umount, without the "n".

ah- so joshcrick had it wrong i guess, or is it os dependant?

ps- that worked- thanks.