Error when backing up Windows 2008 Server Core Domain Controllers: "cannot create 'directory' on (55982)

Error when backing up Windows 2008 Server Core Domain Controllers: "cannot create 'directory' on 'server'. Access is denied"

When  the share is created on the Windows 2008 Server Core DC the following syntax must be used in the command box:

NET Share sharename=e:\dir /GRANT:Everyone,Full            (or similar depending on what access you need to give)

If the share is created  with no /GRANT you  should  be able to  see the directory but not write to it.

Once done and the Recovery Manager for AD  backup is setup correctly, then when the backup is started  the .tmp file is  created in the chosen share\directory. However this .tmp file does not increase in size the  same way as a normal DC backup file does. It remains on 0 bytes until  the  whole backup has completed. It is possible check this though on the Server  core DC by changing to the backup directory in the command prompt typing DIR. The file size does not increase but the  free disk  space  decreases as the file is written.