From: unruh-spam@physics.ubc.ca   
      
   AZ Nomad  writes:   
      
   >I replaced a ps/2 mouse with an usb mouse and then my system wouldn't boot.   
   >I use lilo and it gave a '99' error over and over. Booted the gentoo install   
   >CD, mounted my partitions and chrooted then rebuilt and reinstalled my   
   >kernel.  Reran 'dolilo'.   
      
   >Still no joy.  I had made sure I didn't have a camera card in my hp 8200   
   >and that any other unusual usb devices were disconnected.  Then I thought   
   >about the mouse and removed it and reinstalled the old one.  Then the   
   >system was able to boot!   
      
   >How the hell can a usb mouse prevent booting?  Does it confuse usb-storage   
   >and create a block device that slides in to replace /dev/sda?  I was able to   
      
   Yes, that is what it sounds like-- it was trying to boot from the usb   
   device. Why do you not disable usb booting in bios ( if possible) and see   
   if the same thing happens.   
      
   >boot the cdrom, but not the hard drive.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)