qemu-img create -f raw name.img 1000M 
  qemu -fda /dev/fd0 -hda win98.img -boot a 
  qemu -hda /media/hda2/win2000.img -cdrom /dev/hdc -boot c -win2k-hack

qemu -L qemu/ -m 128 -localtime -kernel linux24 -initrd minirt24.gz -hda KNOPPIX/KNOPPIX -append "qemu vga=791 quiet noscsi nousb nofirewire atapicd noideraid noacpi acpi=off noapm noagp ide1=noprobe ide2=noprobe nomce frugal"