[kubuntu] Running xv6 (unix) on qemu emulator

Hello,
I'm new here, but not on linux :P
I'm trying to run and load xv6 img that I'm working on to qemu on kubuntu (64bit updated).
I downloaded the source compiled it, and tried to run it, but it seems that I'm having a problem since qemu runs in a new "shell" windows, but it is stuck on screen saying SeaBIOS something something, and strangely it seem that the screen flickers, so I tried to screenshot this flickery thing, and seem to be another screen which written on it VGA stuff (detecting VGA etc..)



I run the emulator like this:
qemu-system-i386 -serial mon:stdio -hdb fs.img xv6.img -smp 1 -m 512

the compilation seem to end just fine with no errors or warnings
tried reinstalling stuff, and tried x86_64 emulator nothing works, tried the same source code on other kubutnus and ubuntus (32/64bit) they worked like a charm.

also I tried to to configure the iPXE thing to boot or load the img, but I couldn't make it work, and it seems that there is no img loaded.
Btw: tried running it with -nographics it runs the emulator on the terminal, and stucks (can't write anything or do except emulator control stuff)

Any idea guys??
Thanx for your time I really appreciate it :).