Depedency problems: "Package mongodb-org-server is not configured yet".
Mongo shell works but how do I know about server usability if it was not installed properly? See below:

1. apt-get upgrade
   Reading package lists... Done
   Building dependency tree
   Reading state information... Done
   The following packages will be upgraded:
   mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
   5 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
   Need to get 115 MB of archives.
   After this operation, 736 kB of additional disk space will be used.
   Do you want to continue [Y/n]? Y
   Get:1 http://downloads-distro.mongodb.org/repo/debian-sysvinit/ dist/10gen mongodb-org-shell amd64 2.6.4 [4,457 kB]
   Get:2 http://downloads-distro.mongodb.org/repo/debian-sysvinit/ dist/10gen mongodb-org-server amd64 2.6.4 [9,440 kB]
   Get:3 http://downloads-distro.mongodb.org/repo/debian-sysvinit/ dist/10gen mongodb-org-mongos amd64 2.6.4 [7,171 kB]
   Get:4 http://downloads-distro.mongodb.org/repo/debian-sysvinit/ dist/10gen mongodb-org-tools amd64 2.6.4 [93.6 MB]
   Get:5 http://downloads-distro.mongodb.org/repo/debian-sysvinit/ dist/10gen mongodb-org amd64 2.6.4 [3,648 B]
   Fetched 115 MB in 28s (3,995 kB/s)
   (Reading database ... 33091 files and directories currently installed.)
   Preparing to replace mongodb-org-shell 2.6.3 (using .../mongodb-org-shell_2.6.4_amd64.deb) ...
   Unpacking replacement mongodb-org-shell ...
   Preparing to replace mongodb-org-server 2.6.3 (using .../mongodb-org-server_2.6.4_amd64.deb) ...
   [ ok ] Stopping database: mongod apparently not running.
   Unpacking replacement mongodb-org-server ...
   Preparing to replace mongodb-org-mongos 2.6.3 (using .../mongodb-org-mongos_2.6.4_amd64.deb) ...
   Unpacking replacement mongodb-org-mongos ...
   Preparing to replace mongodb-org-tools 2.6.3 (using .../mongodb-org-tools_2.6.4_amd64.deb) ...
   Unpacking replacement mongodb-org-tools ...
   Preparing to replace mongodb-org 2.6.3 (using .../mongodb-org_2.6.4_amd64.deb) ...
   arg: upgrade
   Unpacking replacement mongodb-org ...
   Processing triggers for man-db ...
   Setting up mongodb-org-shell (2.6.4) ...
   Setting up mongodb-org-server (2.6.4) ...
   Installing new version of config file /etc/mongod.conf ...
   [FAIL] Starting database: mongod failed!
   invoke-rc.d: initscript mongod, action "start" failed.
   dpkg: error processing mongodb-org-server (--configure):
   subprocess installed post-installation script returned error exit status 1
   Setting up mongodb-org-mongos (2.6.4) ...
   Setting up mongodb-org-tools (2.6.4) ...
   dpkg: dependency problems prevent configuration of mongodb-org:
   mongodb-org depends on mongodb-org-server; however:
   Package mongodb-org-server is not configured yet.