yeah thats right. i could run fdisk when logged in as root but not as super user. thanks guys
What is that super user?
If that is 'su' --> it is substitute user ...
When you type just 'su' it goes to the default user --> root here. You can also give 'su <username>'.
And, to enable fdisk et al. when using su, just use 'su -'(hyphen) and you can access root commands!