Uninstall mongoDB from ubuntu
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.
Solution 1:
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
Solution 2:
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