sata and changing devices

[Gerry Reno]

Just following up on this theme with respect to GRUB.  When Anaconda 
installed GRUB it put entries into /boot/grub/device.map.  But in grub> 
when I do a 'find /boot/grub/stage1' the list of devices containing the 
boot files is altogether different from what is in device.map.  So my 
question is this:  On systems with SATA, is device.map no longer used?  
Since it seems under GRUB that the devices where GRUB finds the boot 
files keep changing between boots is device.map even usable?