USB hard drive no longer mounting

[cliverlong]

Thank-you for your swift response.

I did the following actions:
Events
Started xbmc debug logging
Plugged in USB SD Card reader
2GB card was mounted and visible in xbmc file manager
2GB SD card unmounted from xbmc file mananger using context (?) "C" option
USB card reader unplugged then USB hard drive plugged in
USB hard drive not visible in xbmc file manager
unplugged usb hard drive
Stopped xbmc debug logging

Links to files: https://dl.dropboxusercontent.com/u/32576758/2014-07-14-xbmclog.txt

https://dl.dropboxusercontent.com/u/32576758/2014-07-14-xbmc-dmesg.txt