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I'm attempting to setup MongoDB on Ubuntu 20.04.02 LTS by following the documentation. I have ensured this is a fresh install. However an error persists when I verify if the MongoDB install started succesfully by typing in:
sudo systemctl status mongod
● mongod.service - MongoDB Database Server
Loaded: loaded (/lib/systemd/system/mongod.service; disabled; vendor prese>
Active: failed (Result: core-dump) since Wed 2021-08-11 12:59:20 UTC; 49s >
Docs: https://docs.mongodb.org/manual
Process: 3190 ExecStart=/usr/bin/mongod --config /etc/mongod.conf (code=dum> Main PID: 3190 (code=dumped, signal=ILL)
Aug 11 12:59:19 discorddomagoj systemd1: Started MongoDB Database
Server. Aug 11 12:59:20 discorddomagoj systemd1: mongod.service:
Main process exited,> Aug 11 12:59:20 discorddomagoj systemd1:
mongod.service: Failed with result '>
Picture of problem for clarity:
1.Stop the mongod process by issuing the following command:-
sudo service mongod stop
2.Remove any MongoDB packages that you had previously installed:-
sudo apt-get purge mongodb-org*
3.Remove MongoDB databases and log files:-
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
4.Then reinstall mangodb 4.4.8
5.Import the public key used by the package management system:-
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
6.The following instruction is for Ubuntu 20.04 (Focal):-
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
7.Update Apt
sudo apt-get update
8.Install mongodb
sudo apt-get install mongodb-org=4.4.8 mongodb-org-server=4.4.8 mongodb-org-shell=4.4.8 mongodb-org-mongos=4.4.8 mongodb-org-tools=4.4.8
9.Use mongod --version to check its succesfully installed
10.If u encounter any error while using mongod
sudo mkdir /data
cd /data
sudo mkdir db
sudo pkill -f mongod
11.Then use sudo mongod command.
This error show CPU incompatibly with mongodb. if use proxmox set cpu mode to "HOST".
stop the db
sudo service mongod stop
uninstall it:
sudo apt-get purge mongodb-org*
Import the public key used by the package management system
wget -qO - https://www.mongodb.org/static/pgp/server-5.0.asc | sudo apt-key add -
Create a list file for MongoDB.
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-5.0.list
Reload local package database
sudo apt-get update
Install a specific release of the MongoDB packages(this was the reason I had that similar error for not specifying the package)
sudo apt-get install -y mongodb-org=5.0.7 mongodb-org-database=5.0.7 mongodb-org-server=5.0.7 mongodb-org-shell=5.0.7 mongodb-org-mongos=5.0.7 mongodb-org-tools=5.0.7
lastly, on one tab of the terminal run:
sudo mongod
on another open the db:
mongo
I have same issue when installing mongodb on virtual machine with proxmox.
Changing processor from kvm to host or sandybridge(my actual pc) solved this problem. Reference link
This is an addition to #AbdulWahhab 's answer. I have recently seen many questions of same type: 'can't start mongodb#5.0.x server on ubuntu#20.0.4'. Having faced this issue myself, I found installing mongodb#4.4.8 version only way out. In addition consider that sudo apt-get update updates all packages including mongodb. Newer version of mongodb gets installed and server does not work anymore(as of 10th december 2021). To prevent unintended upgrades, you can pin the package at the currently installed version:
echo "mongodb-org hold" | sudo dpkg --set-selections
echo "mongodb-org-database hold" | sudo dpkg --set-selections
echo "mongodb-org-server hold" | sudo dpkg --set-selections
echo "mongodb-org-shell hold" | sudo dpkg --set-selections
echo "mongodb-org-mongos hold" | sudo dpkg --set-selections
echo "mongodb-org-tools hold" | sudo dpkg --set-selections
A possible reason for the dump is a change in the microarchitecture requirements of MongoDB introduced with version 5.0. This causes this exact issue on a Raspberry Pi for instance (see: MongoDB Forum).
This issue might be mitigated by building from source as described in the forum post. I haven't tried this though personally. Installing versions prior to 5.0 (as described by Abdul Wahhab) will solve the problem as well.
If you have tried all of the above solutions, and still can't help, please try to reboot the VM.
I am using 18.04 and initially installed 6.0 mongoDB and it just showed the core-dump error after issuing "sudo systemctl status mongod".
After doing some research, I tried to uninstall the 6.0 and then re-install 4.4, it still couldn't help.
Then I tried to re-install 4.2, it still couldn't help.
Finally, I tried to reboot the VM, then it works..
For MongoDB 5.0+
If you are running on VirtualBox with a Windows host, disable Hyper-V. The issue is a lack of AVX support and to get it you need to disable Hyper-V and be using VirtualBox 5.03 or later.
Using CMD as Administrator
bcdedit /set hypervisorlaunchtype off
DISM /Online /Disable-Feature:Microsoft-Hyper-V
Then hard shutdown and restart the host. After that, starting the guest from cold boot should work.
sudo systemctl start mongodb
sudo systemctl status mongodb
Source: https://forums.virtualbox.org/viewtopic.php?f=25&t=99390
I had the same problem on Ubuntu 22.10 and MongoDB 6.0.
I solved it by put it AVX to AUTO in BIOS.
Just for future help in case of someone else need help.
check if you have the java runtime environment (JRE), if not then install it:
sudo apt install default-jre
That' s all =)
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 $USER /data/db
I have tried some of the answers above, it did not work for me.
Then I followed a guide 1:
Update ubuntu packages
Install MongoDB on the command line
Set up your local database
Creating the folders and permissions
It worked in my case!
How to completely uninstall mongoDB with all its instances, and re-install it.
I've tried this,
sudo service mongod stop
sudo apt-get purge mongodb-org*
sudo rm -r /var/log/mongodb
sudo apt-get autoclean
sudo apt-get autoremove
sudo apt-get purge mongodb-org*
But its giving the below error :
sudo rm -r /var/log/mongodb its giving error :rm: cannot remove
'/var/log/mongodb': No such file or directory
sudo rm -r /var/lib/mongodb its giving error :rm: cannot remove
'/var/lib/mongodb': No such file or directory
Now still, it's not removed completely.
reema#reema-s ~> mongo MongoDB shell version v4.0.11 connecting to:
mongodb://127.0.0.1:27017/?gssapiServiceName=mongodb
2019-07-25T15:45:34.860+0530 E QUERY [js] Error: couldn't connect
to server 127.0.0.1:27017, connection attempt failed: SocketException:
Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused
: connect#src/mongo/shell/mongo.js:344:17 #(connect):2:6 exception:
connect failed reema#reema-s ~>
Try the below steps accordingly:
First stop the mongod process
sudo service mongod stop
Remove any MongoDB packages
sudo apt-get purge mongodb-org*
Remove MongoDB databases and log files
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
Remove MongoDB Service
sudo rm /etc/systemd/system/mongodb.service
For Ubuntu 20.04 LTS use this path sudo rm /lib/systemd/system/mongod.service
This should work for you.
In addition to the above answer you may also like to run
sudo apt-get autoremove
Sometimes if multiple versions were installed this is also required.
I just installed mongoDB on ubuntu 14.0.4.
I tried to start the shell but I'm getting a connection refused error.
me#medev:/etc/init.d$ mongo
MongoDB shell version: 2.6.5
connecting to: test
2014-11-10T15:06:28.084-0500 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2014-11-10T15:06:28.085-0500 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
So I decided to try to restart the service but that's failing too. I get the following error message:
me#medev:/etc/init.d$ sudo service mongodb restart
mongodb: unrecognized service
me#medev:/etc/init.d$
This is what I have in my /var/log/mongodb/mongod.log - http://pastebin.com/MrHt8tce
what i've tried so far:
I found another post here: can't start mongodb as sudo
which made a comment about remove the mongo lock file.
I deleted the lock file and then retried my command but it still fails as you can see below:
me#medev:/var/lib/mongodb$ sudo rm mongod.lock
me#medev:/var/lib/mongodb$ ls
journal local.0 local.ns _tmp
me#medev:/var/lib/mongodb$ sudo service mongodb start
mongodb: unrecognized service
But I can start it using /etc/init.d as you can see below:
me#medev:/var/lib/mongodb$ sudo /etc/init.d/mongod start
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service mongod start
Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the start(8) utility, e.g. start mongod
mongod start/running, process 27469
me#medev:/var/lib/mongodb$ ls
journal local.0 local.ns mongod.lock
me#medev:/var/lib/mongodb$ mongo
MongoDB shell version: 2.6.5
connecting to: test
> db
test
>
Any ideas on why I can't start it using the service command would be appreciated. From what I've read, i should be using sudo service mongodb
Try this:
Write mongodb instead of mongod
sudo service mongodb status
I got the same error one day You should use this:
1.Get the status of your mongo service:
/etc/init.d/mongod status
or
sudo service mongod status
2.If it's not started repair it like this:
sudo rm /var/lib/mongodb/mongod.lock
mongod --repair
sudo service mongodb start
And check again if the service is started again(1)
For me the solution was to replace
service mongod start
with
start mongod
You need to make sure the file (ex. /etc/init.d/mongodb) has execute permissions.
chmod +x /etc/init.d/mongodb
For debian, from the 10gen repo, between 2.4.x and 2.6.x, they renamed the init script /etc/init.d/mongodb to /etc/init.d/mongod, and the default config file from /etc/mongodb.conf to /etc/mongod.conf, and the PID and lock files from "mongodb" to "mongod" too. This made upgrading a pain, and I don't see it mentioned in their docs anywhere. Anyway, the solution is to remove the old "mongodb" versions:
update-rc.d -f mongodb remove
rm /etc/init.d/mongodb
rm /var/run/mongodb.pid
diff -ur /etc/mongodb.conf /etc/mongod.conf
Now, look and see what config changes you need to keep, and put them in mongod.conf.
Then:
rm /etc/mongodb.conf
Now you can:
service mongod restart
I installed mongo server on Debian Jessie using manual from official site.
It didn't started after recommended command sudo service mongod restart with the same error - mongodb: unrecognized service.
After looking into installed package contents, I noticed that it contains only Systemd service unit, but no SystemV init script:
# dpkg -L mongodb-org-server
/.
/usr
/usr/bin
/usr/bin/mongod
/usr/share
/usr/share/lintian
/usr/share/lintian/overrides
/usr/share/lintian/overrides/mongodb-org-server
/usr/share/doc
/usr/share/doc/mongodb-org-server
/usr/share/doc/mongodb-org-server/LICENSE-Community.txt
/usr/share/doc/mongodb-org-server/README
/usr/share/doc/mongodb-org-server/copyright
/usr/share/doc/mongodb-org-server/changelog.gz
/usr/share/doc/mongodb-org-server/GNU-AGPL-3.0.gz
/usr/share/doc/mongodb-org-server/THIRD-PARTY-NOTICES.gz
/usr/share/doc/mongodb-org-server/MPL-2.gz
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/mongod.1.gz
/etc
/etc/mongod.conf
/lib
/lib/systemd
/lib/systemd/system
/lib/systemd/system/mongod.service
But my system was running on SysV init:
# stat /proc/1/exe
File: '/proc/1/exe' -> '/sbin/init'
So, there are 2 options now:
(Continue on SysV) Write sysV init script manually as #khylo mentioned above
(Switch to SystemD) and run systemctl start mongod
For me nothing have helped, I've ended up with a solution:
create /lib/systemd/system/mongod.service file with content
[Unit]
Description=High-performance, schema-free document-oriented database
After=network.target
Documentation=https://docs.mongodb.org/manual
[Service]
User=mongodb
Group=mongodb
ExecStart=/usr/bin/mongod --quiet --config /etc/mongod.conf
[Install]
WantedBy=multi-user.target
then start/stop commands should work
$ sudo service mongod start
For reference - I have Ubuntu 14.04 LTS, MongoDB 3.2.9 installed from
deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse
You can use mongod command instead of mongodb, if you find any issue regarding dbpath in mongo you can use my answer in the link below.
https://stackoverflow.com/a/53057695/8247133
I think you may have installed the version of mongodb for the wrong system distro.
Take a look at how to install mongodb for ubuntu and debian:
http://docs.mongodb.org/manual/tutorial/install-mongodb-on-debian/
http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
I had a similar problem, and what happened was that I was installing the ubuntu packages in debian
Original Source - https://www.techrepublic.com/article/how-to-install-mongodb-community-edition-on-ubuntu-linux/
If you're on Ubuntu 16.04 and face the unrecognized service error, these instructions will fix it for you:-
Open a terminal window.
Issue the command sudo apt-key adv —keyserver hkp://keyserver.ubuntu.com:80 —recv EA312927
Issue the command sudo touch /etc/apt/sources.list.d/mongodb-org.list
Issue the command sudo gedit /etc/apt/sources.list.d/mongodb-org.list
Copy and paste one of the following lines from below (depending upon your release) into the open file.
For 12.04: deb http://repo.mongodb.org/apt/ubuntu precise/mongodb-org/3.6 multiverse
For 14.04: deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.6 multiverse
For 16.04: deb http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.6 multiverse
Make sure to edit the version number with the appropriate latest version and save the file.
Installation
Open a terminal window and issue command sudo apt-get update && sudo apt-get install -y mongodb-org
Let the installation complete.
Running MongoDB To start the database, issue the command sudo service mongodb start. You should now be able to issue the command to see that MongoDB is running: systemctl status mongodb
Ubuntu 16.04 solution
If you are using Ubuntu 16.04, you may run into an issue where you see the error mongodb: unrecognized service due to the switch from upstart to systemd. To get around this, you have to follow these steps.
If you added the /etc/apt/sources.list.d/mongodb-org.list, remove it with the command sudo rm /etc/apt/sources.list.d/mongodb-org.list
Update apt with the command sudo apt-get update
Install the official MongoDB version from the standard repositories with the command sudo apt-get install mongodb in order to get the service set up properly
Remove what you just installed with the command sudo apt-get remove mongodb && sudo apt-get autoremove
Now follow steps 1 through 5 listed above to install MongoDB; this should re-install the latest version of MongoDB with the systemd services already in place. When you issue the command systemctl status mongodb you should see that the server is active.
I mostly copy pasted the above (with minor modifications and typo fixes) from here - https://www.techrepublic.com/article/how-to-install-mongodb-community-edition-on-ubuntu-linux/
This is a simple solution that worked for me with the same problem (I think):
mv /var/lib/mongodb /var/lib/mongodb_backup
mkdir /var/lib/mongodb
chmod 700 /var/lib/mongodb
chown mongodb:daemon /var/lib/mongodb
systemctl restart mongodb or service mongod restart
If you're running Ubuntu in WSL (Windows Subsystem for Linux), you will have issues because WSL does not currently support systemd.
The link below explains how to run MongoDB without systemd, and even how to add a script for using the service command with WSL.
https://learn.microsoft.com/en-us/windows/wsl/tutorials/wsl-database#mongodb-init-system-differences
tutorials may start MongoDB using the operating system's built-in init system. You might see the command sudo systemctl status mongodb used in tutorials or articles. Currently WSL does not have support for systemd (a service management system in Linux).
You shouldn't notice a difference, but if a tutorial recommends using sudo systemctl, instead use: sudo /etc/init.d/. For example, sudo systemctl status docker, for WSL would be sudo /etc/init.d/docker status ...or you can also use sudo service docker status.
I'm looking for the easiest and the most recommended way to upgrade mongodb version (standalone server and mongodb shell).
Are there any terminal (for mac) commands that i can follow in order to upgrade?
I tried to stop the server by
$ mongo
use admin
db.shutdownServer()
i get :
Sat Mar 17 20:38:15 DBClientCursor::init call() failed
Sat Mar 17 20:38:15 query failed : admin.$cmd { shutdown: 1.0 } to: 127.0.0.1:27017
server should be down...
Sat Mar 17 20:38:15 trying reconnect to 127.0.0.1:27017
Sat Mar 17 20:38:15 reconnect 127.0.0.1:27017 failed couldn't connect to server 127.0.0.1:27017
I understand that after stopping the server i need to change the bin folder of mongodb. (which i'm failing to do because mongo is in use)
If someone knows an easier way to only upgrade the mongodb version i would really thank him/her!
thank you.
To Upgrade MongoDB on Ubuntu
First, Backup your data using Mongoexport
e.g:
mongoexport --db sales --collection contacts --out contacts.json --journal
Then check which version of MongoDB you are running by issuing the command:
$ mongod --version
db version v1.8.2, pdfile version 4.5 -
Wed Oct 24 15:43:13 git version: nogitversion
Confirm if mongo is currently running:
$ ps -deaf | grep mongod
mongodb 15408 1 0 Jun06 ? 13:50:00 /usr/bin/mongod --config /etc/mongodb.conf
To Shutdown MongoDB
$ ./mongo
> use admin
> db.shutdownServer()
server should be down...
Then upgraded following these instructions: How to Install MongoDB on Ubuntu
Add the 10 Gen (creators of MongoDB) public key to apt-get so you trust their package:
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10
$ echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" >> /etc/apt/sources.list.d/10gen.list
Update your packages:
$ sudo apt-get update
install 10gen's MongoDB Debian/Ubuntu package:
$ sudo apt-get install mongodb-10gen
The following packages will be REMOVED:
mongodb
The following NEW packages will be installed:
mongodb-10gen
If you get an error, try:
$ apt-get autoremove
Confirm that the mongodb user/group has permission to write to the data directory:
$ sudo chown -R mongodb:mongodb /var/lib/mongodb/.
Start up MongoDB as a Daemon (background process) using the following command:
$ mongod --fork --dbpath /var/lib/mongodb/ --smallfiles --logpath
/var/log/mongodb.log --logappend
To Shut Down MongoDB enter the Mongo CLI, access the admin and issue the shutdown command:
$ ./mongo
> use admin
> db.shutdownServer()
shutdown mongodb with:
/usr/bin/mongodb --config $PATH-TO-CONFIG --shutdown
(replace /usr/bin with the right directory)
copy new mongodb and restart mongodb afterwards.
Depends on the version upgrade, but usually if it's a major upgrade (example from 1.8.xx to 2.0.XX) you should do at least the following steps:
backup your data (mongoexport or check this MongoDB backup documentation)
stop the server (use admin db.shutdownServer() )
copy or symbolic link the new mongodb binaries
run mongod with the --upgrade flag (mongod - f --upgrade)
when upgrade done, restart the mongod server
After that make sure that everything is working properly. If not switch back to the old version, import the data from the backup and check mongoDB jira :)
1.Import the public key used by the package management system
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
2. Create a list file for MongoDB.
echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
3. Reload local package database.
sudo apt-get update
4. stop the existing service
sudo service mongodb stop
5. first migrate to 2.4 to 2.6
Install a specific release of MongoDB
sudo apt-get install -y mongodb-org=2.6.12 mongodb-org-server=2.6.12 mongodb-org-shell=2.6.12 mongodb-org-mongos=2.6.12 mongodb-org-tools=2.6.12
6.unlink the temp links
remove the lock file.
rm /tmp/mongodb-27017.sock
7.restart mongo service
sudo service mongodb restart
8. Now finally migrate from 2.6 to 3.0
sudo apt-get install -y mongodb-org=3.0.12 mongodb-org-server=3.0.12 mongodb-org-shell=3.0.12 mongodb-org-mongos=3.0.12 mongodb-org-tools=3.0.12
restart again and voila !!!!
For more details follow the official documentation:
mongo doc
To upgrade from version 2 to version 3
I was unsuccessful using the methods in the other answers here, and was finally successful when following the offical document's "Upgrade Binaries" approach, like so:
Stop mongo from running :
$ sudo service mongod stop
Download the correct binaries
(from here, and for help getting the correct version see this
answer)
Copy the downloaded binaries over :
$ sudo cp downloaded_binaries/bin/* /usr/bin
Restart mongo :
$ sudo service mongod start