USB cf reader problem unmounting

[Bevan C. Bennett]

Polashek, Matthew wrote:
> /mnt/flash: device is busy
> 
> Any idea why I might be getting this error?

Did you leave a shell open where the current directory is under /mnt/flash?

99% of the time I see a message like that it's because I have a shell 
still cd'd into the directory in question. Make sure you don't have the 
directory open (either in a shell or in a browser like nautilus) and try 
again.

"lsof /mnt/flash" may also help to identify the process responsible.