Provided by: fdflush_1.0.1.3build1_amd64 bug


       fdflush - force floppy disk drive to detect disk change


       fdflush [device]


       Fdflush  is  a band-aid for a common PC hardware problem. Many PC floppy disk drives can't
       detect when the disk has been changed. The symptom of this problem is that when a disk  is
       changed,  the drive will continue to read buffered data from the previous disk rather than
       new data from the disk presently in the drive. Running fdflush makes  the  system  believe
       the  disk-change  switch has been actuated, and the system discards the buffered blocks in
       response to this information.  If you have  one  of  these  slightly-broken  disk  drives,
       you'll have to run fdflush every time you change a disk.

       The  kernel uses two different ioctl commands to flush buffers. One's generic (BLKFLSBUF),
       one's floppy-specific (FDFLUSH).  fdflush calls both, and only reports an  error  if  noth


       device The name of the floppy disk device, in the form /dev/fd1 .  The default is /dev/fd0


       Zero: success, one: ioctl error, two: inability to open  the  floppy  (or  other)  device,
       three: usage error.


       They're  in  your  hardware.   Try swapping in another floppy drive to see if this problem
       goes away.


       /dev/fdN  floppy disk device.


       Bruce Perens .