vagrant@precise64:~$ sudo apt-get install mongodb-enterprise-unstable vagrant@precise64:~$ sudo apt-get install mongodb-org-unstable Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: mongodb-org-unstable-mongos mongodb-org-unstable-server mongodb-org-unstable-shell mongodb-org-unstable-tools The following NEW packages will be installed: mongodb-org-unstable mongodb-org-unstable-mongos mongodb-org-unstable-server mongodb-org-unstable-shell mongodb-org-unstable-tools 0 upgraded, 5 newly installed, 0 to remove and 149 not upgraded. Need to get 97.6 MB of archives. After this operation, 249 MB of additional disk space will be used. Do you want to continue [Y/n]? y Get:1 http: //distro-deb2.build.10gen.cc/rebrand/ubuntu-upstart/ dist/mongodb mongodb-org-unstable-shell amd64 2.5.2 [3,561 kB] Get:2 http: //distro-deb2.build.10gen.cc/rebrand/ubuntu-upstart/ dist/mongodb mongodb-org-unstable-server amd64 2.5.2 [8,093 kB] Get:3 http: //distro-deb2.build.10gen.cc/rebrand/ubuntu-upstart/ dist/mongodb mongodb-org-unstable-mongos amd64 2.5.2 [5,760 kB] Get:4 http: //distro-deb2.build.10gen.cc/rebrand/ubuntu-upstart/ dist/mongodb mongodb-org-unstable-tools amd64 2.5.2 [80.2 MB] Get:5 http: //distro-deb2.build.10gen.cc/rebrand/ubuntu-upstart/ dist/mongodb mongodb-org-unstable amd64 2.5.2 [3,028 B] Fetched 97.6 MB in 17s (5,737 kB/s) Selecting previously unselected package mongodb-org-unstable-shell. (Reading database ... 51330 files and directories currently installed.) Unpacking mongodb-org-unstable-shell (from .../mongodb-org-unstable-shell_2.5.2_amd64.deb) ... dpkg: error processing / var /cache/apt/archives/mongodb-org-unstable-shell_2.5.2_amd64.deb (--unpack): trying to overwrite '/usr/bin/mongo' , which is also in package mongodb-enterprise-unstable 2.5.2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Selecting previously unselected package mongodb-org-unstable-server. Unpacking mongodb-org-unstable-server (from .../mongodb-org-unstable-server_2.5.2_amd64.deb) ... dpkg: error processing / var /cache/apt/archives/mongodb-org-unstable-server_2.5.2_amd64.deb (--unpack): trying to overwrite '/usr/bin/mongod' , which is also in package mongodb-enterprise-unstable 2.5.2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Selecting previously unselected package mongodb-org-unstable-mongos. Unpacking mongodb-org-unstable-mongos (from .../mongodb-org-unstable-mongos_2.5.2_amd64.deb) ... dpkg: error processing / var /cache/apt/archives/mongodb-org-unstable-mongos_2.5.2_amd64.deb (--unpack): trying to overwrite '/usr/bin/mongos' , which is also in package mongodb-enterprise-unstable 2.5.2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Selecting previously unselected package mongodb-org-unstable-tools. Unpacking mongodb-org-unstable-tools (from .../mongodb-org-unstable-tools_2.5.2_amd64.deb) ... dpkg: error processing / var /cache/apt/archives/mongodb-org-unstable-tools_2.5.2_amd64.deb (--unpack): trying to overwrite '/usr/bin/mongoperf' , which is also in package mongodb-enterprise-unstable 2.5.2 No apport report written because MaxReports is reached already dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Selecting previously unselected package mongodb-org-unstable. Unpacking mongodb-org-unstable (from .../mongodb-org-unstable_2.5.2_amd64.deb) ... Errors were encountered while processing: / var /cache/apt/archives/mongodb-org-unstable-shell_2.5.2_amd64.deb / var /cache/apt/archives/mongodb-org-unstable-server_2.5.2_amd64.deb / var /cache/apt/archives/mongodb-org-unstable-mongos_2.5.2_amd64.deb / var /cache/apt/archives/mongodb-org-unstable-tools_2.5.2_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1)