Installation

Windows

1. Download the latest version of NzbDrone from http://www.nzbdrone.com
2. Extract the zip file into your target directory. Use a folder that NzbDrone process would have write access to (DO NOT use C:\Program Files or C:\Program Files (x86))
3. Run NzbDrone.exe once as administrator to register the port and URL with Windows (Required for remote access)¹
4. Manually start NzbDrone by running Nzbdrone.exe or ServiceInstall.exe to install NzbDrone as a Windows service.
5. Open http://localhost:8989 in your browser

¹ The port will be opened on the firewall (if enabled) for the private profile only, if you're connected to a domain or a public network the port will not be opened automatically, but can be done so manually.

Linux

Ubuntu

mono

It is recommended that you install mono 3.2 instead of the default that is in the Ubuntu repo, this Stack Overflow answer has the steps to do it: http://stackoverflow.com/a/13384233/882971

Add NzbDrone's repository to your software source

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys FDA5DFFC
echo "deb http://update.nzbdrone.com/repos/apt/debian master main" | sudo tee -a /etc/apt/sources.list

Install/Update NzbDrone

sudo apt-get update
sudo apt-get install nzbdrone 

Start NzbDrone

mono /opt/NzbDrone/NzbDrone.exe

Open Browser

http://localhost:8989

Automatically Start NzbDrone

Autostart on Linux

Other

Install dependencies

mono (2.10.8+ but 3.2+ is recommended)
mediainfo (for processing files on import)
sqlite3 (database)

Download

http://update.nzbdrone.com/v2/master/mono/NzbDrone.master.tar.gz

Extract tar.gz

tar xvfz NzbDrone.master.tar.gz

Run Nzbdrone with mono (debugging enabled)

mono --debug NzbDrone.exe

OS X

Install dependencies

mono

mono - (x86 required)

Download and run

http://download.mono-project.com/archive/3.2.4/macos-10-x86/MonoFramework-MRE-3.2.4.macos10.xamarin.x86.pkg

other

mediainfo (for processing files on import) - http://mediaarea.net/en/MediaInfo/Download/Mac_OS

Download

http://update.nzbdrone.com/v2/master/osx/NzbDrone.master.osx.tar.gz

Extract tar.gz

You can do this via the command line

tar xvfz NzbDrone.master.osx.tar.gz

or through Finder, whatever works for you

Run Nzbdrone with mono (debugging enabled)

1. Open Terminal

2. Run mono with debugging enabled

   mono --debug /full/path/to/extracted/NzbDrone/NzbDrone.exe