Uninstall mongoDB from ubuntu

Question

I have installed MongoDB 3 0 1 following the commands in Install MongoDB Community Edition on Ubuntu on my ubuntu 14 04 64 bit system and I installed Robomongo interface to use that    When I try to connect MongoDB using Robomongo I get an error that authorization failed  I found Add support for SCRAM-SHA-1 authentication  MongoDB 3 0   which explains that Robomongo 0 8 5 doesn t support MongoDB 3 0 X fully   In response  I want to remove MongoDB 3 0 1 and install MongoDB 2 2    I tried the following commands    apt-get remove --purge mongodb   and also   apt-get autoremove --purge mongodb   In both cases I got the following error         Could not open lock file  var lib dpkg lock - open  13  Permission denied    E  Unable to lock the administration directory   var lib dpkg    are you root     Any help would be appreciated

User · Answer

use command with sudo    sudo apt-get autoremove --purge mongodb   OR   sudo apt-get remove mongodb  --purge   It will remove complete mongodb

User · Answer

In my case mongodb packages are named mongodb-org and mongodb-org-   So when I type sudo apt purge mongo then tab  for auto-completion  I can see all installed packages that start with mongo   Another option is to run the following command  which will list all packages that contain mongo in their names or their descriptions    dpkg -l   grep mongo   In summary  I would do  to purge all packages that start with mongo    sudo apt purge mongo    and then  to make sure that no mongo packages are left    dpkg -l   grep mongo   Of course  as mentioned by  alicanozkara  you will need to manually remove some directories like  var log mongodb and  var lib mongodb  Running the following find commands   sudo find  etc  -name   mongo   and sudo find  var  -name   mongo    may also show some files that you may want to remove  like    etc systemd system mongodb service  etc apt sources list d mongodb-org-3 2 list   and    var lib apt lists repo mongodb     You may also want to remove user and group mongodb  to do so you need to run   sudo userdel -r mongodb sudo groupdel mongodb   To check whether mongodb user group exists or not  try   cut -d  -f1  etc passwd   grep mongo cut -d  -f1  etc group   grep mongo

User · Answer

To uninstalling existing MongoDB packages  I think this link will helpful

User · Answer

Sometimes this works   sudo apt-get install mongodb-org --fix-missing --fix-broken sudo apt-get autoremove mongodb-org --fix-missing --fix-broken

User · Answer

use sudo with the command  sudo apt-get remove --purge mongodb   apt-get autoremove --purge mongodb

User · Answer

sudo service mongod stop sudo apt-get purge mongodb-org  sudo rm -r  var log mongodb sudo rm -r  var lib mongodb   this worked for me

User · Answer

Stop MongoDB  Stop the mongod process by issuing the following command   sudo service mongod stop   Remove Packages  Remove any MongoDB packages that you had previously installed   sudo apt-get purge mongodb-org    Remove Data Directories   Remove MongoDB databases and log files    sudo rm -r  var log mongodb  var lib mongodb

User · Answer

I suggest the following to make sure everything is uninstalled   sudo apt-get purge mongodb mongodb-clients mongodb-server mongodb-dev  sudo apt-get purge mongodb-10gen  sudo apt-get autoremove   This should also remove your config from     etc mongodb conf    If you want to clean up completely and you might also want to remove the data directory    var lib mongodb

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