I am using ubuntu 20.04
I have tried following solutions:
Solution 1:
First remove the mongodb using following commands:-
sudo service mongod stop
sudo apt-get purge mongodb-org*
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
Now reinstall the mongo again.
Solution 2:
Most probably unit mongodb.service is masked. Use following command to unmask it.
sudo systemctl unmask mongod
and re-run
sudo service mongod start
Solution 3:
You are missing a 'b' I think?
sudo service mongod start
should be
sudo service mongodb start
Some more solutions are there but not working for me.
I was trying to install MongoDB in WSL running Ubuntu 18.04 after seeing this documentation. But MongoDB says that:
IMPORTANTThe mongodb package provided by Ubuntu is not maintained by MongoDB Inc. and conflicts with the official mongodb-org package. If you have already installed the mongodb package on your Ubuntu system, you must first uninstall the mongodb package before proceeding with these instructions.
MongoDB also says that WSL doesn't support mongodb-org
WINDOWS SUBSYSTEM FOR LINUX (WSL) - UNSUPPORTEDMongoDB does not support the Windows Subsystem for Linux (WSL).
So, I installed mongod using sudo apt install mongodb and when I ran mongo it shows the error:
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
2020-06-21T13:33:40.606+0530 E QUERY [js] Error: couldn't connect to server 127.0.0.1:27017
Is there is a way to install the appropriate package and make it running?
I have come across this situation recently.
Even though MongoDB says that it is not supported in WSL, you can actually install it. So, I suggest you follow that steps given in MongoDB docs.
Note : If you have already installed mongodb please remove all those before you install mongodb-org since it may cause some issues during installation :
sudo dpkg --remove --force-remove-reinstreq mongo-tools
sudo dpkg --remove --force-remove-reinstreq mongodb-server-core
sudo apt-get --fix-broken install
For installing mongodb community edition, I have added the commands below:
wget -qO - https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt-key add -
sudo apt-get install gnupg
wget -qO - https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.2.list
sudo apt-get update
sudo apt-get install -y mongodb-org
Now, to get mongoDB running,
sudo nano /etc/init.d/mongod
and paste the contents in this link into the file and save it.
#give permissions
sudo chmod +x /etc/init.d/mongod
#start the service
sudo service mongod start
Now, you can run mongo to reach the database.
Hope it helps.
#bonyem's solution works if you try on Ubuntu 18.04 (and apparently in 19.10) but not in 20.04. WSL version should be 2 (please see this to update WSL).
You also need to "fake" the bash binary by following the steps mentioned in https://github.com/shayne/wsl2-hacks to make systemctl work.
I tried all the methods above but none of the methods worked. I came across Microsoft's official documentation and everything works like a charm.
https://learn.microsoft.com/en-us/windows/wsl/tutorials/wsl-database#install-mongodb
This worked for me.
Run sudo apt install mongodb
Then after that installs run sudo service mongodb start
It will say * Starting database mongodb
And after that I can connect using mongo
Easiest way to bypass this issue is to run MongoDB on Windows. You'll still be able to connect from WSL2 over localhost.
For me, #bonyem's solution resulted in an error:
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
I'm going to install Mongo 4.4. Many instructions were taken from #Lyubosumaz's directions here.
Get rid of all your Mongo PPAs.
~ ❯ sudo ls /etc/apt/sources.list.d
mongodb-org-4.4.list yarn.list
~ ❯ sudo rm -i /etc/apt/sources.list.d/mongodb-org-4.4.list
Remove all Mongo packages and bits and pieces.
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
sudo dpkg --remove --force-remove-reinstreq mongo-tools
sudo dpkg --remove --force-remove-reinstreq mongodb-org
sudo dpkg --remove --force-remove-reinstreq mongodb-org-server
sudo dpkg --remove --force-remove-reinstreq mongodb-server-core
sudo dpkg --remove --force-remove-reinstreq mongodb-org-mongos
sudo dpkg --remove --force-remove-reinstreq mongodb-org-shell
sudo dpkg --remove --force-remove-reinstreq mongodb-org-tools
sudo apt-get --fix-broken install
yes | sudo apt autoremove
Add new PPA and install Mongo 4.4.
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install -y mongodb-org
You'll get the same error from before. This is caused by mongodb-org package trying to use systemctl to start the DB after install (source). Notice that the same error is thrown when running the command manually.
~ ❯ sudo systemctl start mongod
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
However, running mongod should still work!
If you run into errors when running mongod, you might need to modify some permissions and create a data directory. I found the answer to these issues here, here, and here.
sudo chown $USER /tmp/mongodb-27017.sock
sudo mkdir -p /data/db
sudo chown -R $USER /data/db
I have tried some of the answers above, it did not work for me.
Then I followed a guide 1:
Update ubuntu packages
Install MongoDB on the command line
Set up your local database
Creating the folders and permissions
It worked in my case!
How to uninstall mongodb v3.4.4 completely from my system ubuntu 14.
found Uninstall mongoDB from ubuntu
But not sure if it works on v 3.4.4
First Stop MongoDB Service if Available
sudo service mongod stop
Remove MongoDB Packages
sudo apt-get purge mongodb-org*
Remove Data Directories
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
If your Custom Define Database and log path than u manually remove as above.
Hope this may solve your issue
I created a Ubuntu machine on a koding.com environment (like AWS EC2 Ubuntu).
That environment comes with a Mongodb 2.6 preinstalled but i need Mongo 3.0 at least, I uninstalled the 2.6 and installed the 3.2. This is What happens when i try to stop the service.
stop: Unknown instance:
myUser: ~/Web/project $
Before stop the service i started, this is what i found:
myUser: ~/Web/project $ sudo service mongod start
mongod start/running, process 5538
Also, i searched here Stop: Unknown instance mongodb (Ubuntu) without help.
Solved!
Remove files from:
/etc/apt/sources.list.d
Then:
sudo apt-get purge mongodb-org
sudo apt-get autoremove
sudo apt-get update
echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
sudo apt-get update
sudo apt-get install -y mongodb-org
Please teach me how to uninstall my mongodb in my virtualbox(ubuntu).
I tried these command and nothing was removed :
sudo apt-get purge mongodb mongodb-clients mongodb-server mongodb-dev
sudo apt-get purge mongodb-10gen
sudo apt-get autoremove
It still exists.
I type mongod --version it shows db version v2.6.1
Update:
I want to remove it and then install it again:
I tried the following 4 commands -
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
sudo apt-get update
sudo apt-get install mongodb-org
then
sudo service mongod start
and type mongo there is error:
MongoDB shell version: 2.6.4
connecting to: test
2014-09-02T21:27:10.390+0800 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2014-09-02T21:27:10.392+0800 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146
exception: connect failed
Did I miss something?
Please help me. Thank you!!
Normally, with apt command, you can launch autoremove with all mongoDB packages :
sudo apt-get autoremove mongodb-*
Ok on the mongodb documentation, the packages are changed. To have an up-to-date package follow instructions :
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
Create the /etc/apt/sources.list.d/mongodb.list list file using the following command:
echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
Issue the following command to reload the local package database:
sudo apt-get update
And install desired packages :
sudo apt-get install mongodb-org
After that you have server, shell, mongos, ... To launch mongodb-server youcan launch the mongodb service like this :
sudo service mongod start
To connect on your local server just enter this command :
mongo
To remove Mongo run these commands below
sudo apt-get purge mongodb
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
If you have different versions of mongo already installed, Run the command below
sudo apt-get autoremove
To install mongo safely in Ubuntu 18.04 first update all packages by running this command
sudo apt update
Now install mongo
sudo apt install -y mongodb
Start mongo by running command below
sudo systemctl start mongodb
Now check mongodb status by running
sudo systemctl status mongodb
It should show a status Active
I hope this works for you thanks