MongoDB shell version: 2.3.1-pre- connecting to: 127.0.0.1:27999/test true Sat Nov 17 10:27:08.783 exec error: src/mongo/shell/query.js:180 count failed: { "assertion" : "db already exists with different case other: [dbcasetest_dbnameA] me [dbcasetest_dbnamea]", "assertionCode" : 13297, "errmsg" : "db assertion failure", "ok" : 0 } throw "count failed: " + tojson( res ); ^ failed to load: /home/yellow/buildslave/Linux_64bit_DEBUG/mongo/jstests/dbcase2.js