Package: mongodb-clients Version: 2.4.10-1+b1 I've installed Debian 7 armHF for UDOO, then I added the debian testing and unstable repos to be able to install mongodb. The packages I installed was mongodb, mongodb-dev, mongodb-server and mongodb-clients (all the same version).
In the first terminal I started `mongod`: debian@udoo-debian-hfp:~$ mongod mongod --help for help and startup options Sat Jun 21 11:53:34.714 Sat Jun 21 11:53:34.715 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability. Sat Jun 21 11:53:34.715 Sat Jun 21 11:53:34.752 [initandlisten] MongoDB starting : pid=7675 port=27017 dbpath=/data/db/ 32-bit host=udoo-debian-hfp Sat Jun 21 11:53:34.752 [initandlisten] Sat Jun 21 11:53:34.753 [initandlisten] ** NOTE: This is a 32 bit MongoDB binary. Sat Jun 21 11:53:34.753 [initandlisten] ** 32 bit builds are limited to less than 2GB of data (or less with --journal). Sat Jun 21 11:53:34.753 [initandlisten] ** Note that journaling defaults to off for 32 bit and is currently off. Sat Jun 21 11:53:34.753 [initandlisten] ** See http://dochub.mongodb.org/core/32bit Sat Jun 21 11:53:34.754 [initandlisten] Sat Jun 21 11:53:34.754 [initandlisten] db version v2.4.10 Sat Jun 21 11:53:34.755 [initandlisten] git version: nogitversion Sat Jun 21 11:53:34.755 [initandlisten] build info: Linux howells 3.2.0-4-mx5 #1 Debian 3.2.57-3+deb7u1 armv7l BOOST_LIB_VERSION=1_55 Sat Jun 21 11:53:34.755 [initandlisten] allocator: system Sat Jun 21 11:53:34.755 [initandlisten] options: {} Sat Jun 21 11:53:34.825 [websvr] admin web console waiting for connections on port 28017 Sat Jun 21 11:53:34.825 [initandlisten] waiting for connections on port 27017 In the second terminal, I then start `mongo`: debian@udoo-debian-hfp:~$ mongo MongoDB shell version: 2.4.10 connecting to: test Sat Jun 21 11:52:51.114 Error: couldn't connect to server 127.0.0.1:27017 at src/mongo/shell/mongo.js:145 exception: connect failed So I'm not able to connect to localhost using `mongo`. Specifying 127.0.0.1, localhost or the IP on the local LAN doesn't work either. However, I've set up a dynamic dns alias for the device, and if I use that, it works. So it seems to be an issue with mongo realizing that it is connecting to localhost and trying to use some other method of connecting to the server (sockets?). I were using a clean Debian 7 armHF for UDOO install on my UDOO quad device. I gave up on mongodb for now and installed another OS to see if that helps, so unfortunately I can't give more specific kernel versions etc. See also https://github.com/meteor/meteor/issues/442 Jostein