Boot a Linux OS from a Zune

Is there any way to boot a Linux OS from a Zune?

No, but you can just burn the Linus OS portable onto a CD, then when starting press F12 or something to boot from disk.
Thats probably the easiest way. I think you can boot from a flash drive aswell, but I'm not 100% sure. If you can I think the zune would work. Look up booting from flashdrives.
Also, Zune/mp4s don't have heavy duty harddrives like a computer, so it's not best to be running a 200mb OS off it thats constantly reading, it could be damaging for your zune.