unable to start mongodb local server

I am new to mongodb .. when i tried running mongodb local server with `mongod` command it failed to run and threw this error.. ``` /usr/lib/mongodb/mongod --help for help and startup options Sat Jun 25 09:38:51 MongoDB starting : pid=1782 port=27017 dbpath=/data/db/ 32-bit ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data ** see http://blog.mongodb.org/post/137788967/32-bit-limitations Sat Jun 25 09:38:51 db version v1.6.3, pdfile version 4.5 Sat Jun 25 09:38:51 git version: nogitversion Sat Jun 25 09:38:51 sys info: Linux vernadsky 2.6.24-27-server #1 SMP Fri Mar 12 01:45:06 UTC 2010 i686 BOOST_LIB_VERSION=1_42 Sat Jun 25 09:38:51 [initandlisten] *** warning: spider monkey build without utf8 support. consider rebuilding with utf8 support Sat Jun 25 09:38:51 [initandlisten] waiting for connections on port 27017 Sat Jun 25 09:38:51 [initandlisten] listen(): bind() failed errno:98 Address already in use for socket: 0.0.0.0:27017 Sat Jun 25 09:38:51 [initandlisten] addr already in use Sat Jun 25 09:38:51 [initandlisten] now exiting Sat Jun 25 09:38:51 dbexit: Sat Jun 25 09:38:51 [initandlisten] shutdown: going to close listening sockets... Sat Jun 25 09:38:51 [initandlisten] shutdown: going to flush oplog... Sat Jun 25 09:38:51 [initandlisten] shutdown: going to close sockets... Sat Jun 25 09:38:51 [initandlisten] shutdown: waiting for fs preallocator... Sat Jun 25 09:38:51 [initandlisten] shutdown: closing all files... Sat Jun 25 09:38:51 closeAllFiles() finished Sat Jun 25 09:38:51 [initandlisten] shutdown: removing fs lock... Sat Jun 25 09:38:51 dbexit: really exiting now ``` I tried deleting `mongod.lock` file... I ran `mongod --repair`.. I also changed permissions to `mongod.lock` file. but nothing seems to work.. it keeps showing the same error.. what should i do.? I also have installed git version 1.7.4.1 but it shows nogitversion in error..