So, I'm really excited to get my hands on my first Linux system. I did all the steps required for downloading Ubuntu, until the step with creating a bootable USB stick, wher eI have a problem.

I followed the steps in the link: <http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx>
and I arrived at step 8, where it says:

> 
> Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m 
> 
> 
> 

Here is what I typed in:

> 
> sudo dd if=ubuntu-14.04-desktop-amd64+mac.img.dmg of=/dev/rdisk1 bs=1m
> 
> 
> 

after waiting for 3 minutes and a half (or 210.289801 seconds) of data transfer (of 1008730112 bytes) I get a window with the message:

> 
> The disk you inserted was not readable by this computer
> 
> 
> 

with options to: "Initialize...", "Ignore", or "Eject"

Q: How do I solve this problem? (Bonus: Where did all the data go?)