[PLUG] "Device is busy"

[Ken Stephens]

John Jason Jordan wrote:
> My laptop has a share for /media so that my desktop can access a USB
> drive external to the laptop. Sometimes it just works, more often it
> requires considerable swearing to get it to work. This evening I have
> exhausted my store of expletives in one language and am starting on
> another language.
>
> The laptop us Xubuntu 14.04.1 and the desktop is Xubuntu 12.04.
>
> If I try to mount the share on the desktop at the command line the
> command just hangs forever. No error messages; it just fails to do
> anything. If I try to umount it I get the dreaded "device is busy."
>
> Does anyone have any suggestions? Does anyone know why NFS is such a
> PITA?
>
John,

Sometimes the portmap daemon stops running or is not started for unknown 
reasons.  NFS uses this portmap daemon.
See if it is running.

Ken