The Mother Board

if it isn't ubuntu, the CD was modified by the provider, and you need to ask at the place where you did the download.

_________________
We hate rut, but we fear change.
********************************
System error, strike any user to continue...

I got the ISO from the ubuntu website. Should I try another DL?

How & where & when do I add a user?

_________________
We hate rut, but we fear change.
********************************
System error, strike any user to continue...

I'll ask again, how? When do I run the command?

Where in this process do I run the command?

Reboot my system to boot from CDROM
PC boots from CDROM
Starts to Load ubuntu 15.04
loads to ubuntu desktop
asks for username & password

once you are on the desktop, press Ctrl-Alt-F1, this should open a command window with a prompt where you type

adduser user_you_want_to_make
<Enter>

that should add that user which you can use to login. if that doesn't work either, something is wrong with the keyboard or the CMOS battery...

_________________
We hate rut, but we fear change.
********************************
System error, strike any user to continue...

Are you getting it from here? If so there should be no default user name and password until you are on the desktop trying things out. If you install it to a drive, during the install, you set your user name and password and... And if you do something at 'root' level for the first time it will ask you for a password, whatever you enter at that point becomes the 'root' password...

_________________
I have been programming on computers since the ZX81.
I am an apprentice trained Electronics Engineer with qualifications to back it up.
I have been repairing computers since 1996.
Yet to some people I still know nothing...

@ evasive - I tried Ctrl-Alt-F1 at the desktop, no luck.
After I tried other distros, I needed to reset my clock when I was using WindowsXP again.
Does that mean anything?

@MrT - yes, that is where I got both Ubuntu 14.04 & 15.04 ISO's

What do I do now?

Sure sign the CMOS battery is weak or about to die. Time for a new one?
The battery is good for 3 to 4 years, depending on use. It is only a backup power source for when the PSU is not powered, providing +5 volts stand-by which powers the USB ports and CMOS/BIOS needs.
For a laptop or tablet, the AC power brick provides charging and other needs.

_________________
F@H.. to solve mankind's maladies.. in our lifetimes!

So if I replace my CMOS battery would the solve the username / password problem?

No, that is a different "deck of cards" concerning passwords or user names for programming. But if the BIOS is not configured exactly as the system is set up, some devices or features may not be accessible.

I sent you a PM about some general password problems. But if Linux set a password on access to the 'root', it likely was some key function or sequence you executed.

_________________
F@H.. to solve mankind's maladies.. in our lifetimes!