Writing a bootsector.bin file to a USB sector 1

I have seen many tutorials on how to do this in windows using downloadable programs, but I have no idea how to do this in Ubuntu. I assume it is the same in ever other variant of Linux but I just wanted to note that I am using Ubuntu 10.04LTS. My main purpose for this is to write the 8086emu Micro-OS-Loader (Cylinder 0, head 0, Sector 1) and Micro-OS-Kernel (Cylinder 0, head 0, Sector 2) to a USB flash disk to test to see if it boots up or not. I could do this in Windows, but I want to know how to do this in Linux so I am not dependent on using Windows in order to write my Operating system's data on my USB. If you need additional information on the system I am using, just ask and I will edit the first post. Thank you for your help.

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