Uninstall apps/packages in Ubuntu

Support and Help
,
21

I understand, we have all been there.

@1fallen and I have been friends for a long time, both on Ubuntu Forums and also here. I know he always tests commands to make sure they work before adding them.

Step by step:

open a terminal with Ctrl+Alt+T

Step 1.
copy and paste this command:
cd Downloads && wget https://github.com/bisq-network/bisq2/releases/download/v2.1.6/Bisq-2.1.6.deb https://github.com/bisq-network/bisq2/releases/download/v2.1.6/Bisq-2.1.6.deb.asc

Press enter. The command will download the files you want into your Downloads folder.

Step 2.

in the terminal copy/paste and run this command:
gpg --verify Bisq-2.1.6.deb.asc

See the post where he says what output you might see.

Step 3.

copy/paste and import the key with this command:
gpg --keyserver pgp.mit.edu --recv-key B493319106CC3D1F252E19CBF806F422E222AA02

You will probably be asked to confirm. If you are happy then move to the next step.

Step 4.
install the package with this command:
sudo dpkg -i Bisq-2.1.6.deb

If there are errors (again, look at his post) then do this–

Step 5.
sudo apt -f install

The package should now be correctly installed and the key imported that verifies the download.

To check:
apt policy bisq2

Hope this helps you resolve it.

25

Is it possible to exchange these two commands :

with one : sudo apt install ./Bisq-2.1.6.deb

I ask for my next future new installations if it is fine .
If so then it will be easier to remember it .

26

Yes. It’s extremely unlikely you would ever run into a case where the 2-command way is required.

27

I have a two questions :

  1. Terminal does not ask about anything after I enter Step 3 so I am stuck and I am not sure what to do next ?

gpg --keyserver pgp.mit.edu --recv-key B493319106CC3D1F252E19CBF806F422E222AA02

gpg: key F806F422E222AA02: public key “Alejandro García alejandro.garcia@disroot.org” imported
gpg: Total number processed: 1
gpg: imported: 1
My computer name :~/Downloads$

2.Also the thing which confuse me is what they say here :

https://bisq.wiki/Downloading_and_installing#Bisq2_specific_instructions

about a key of Alejandro Garcia that at least a PGP Signature has expired .
Is it mean that PGP Public Key of Alejandro have not expired and above Terminal outcome is correct ?

28

I have a three questions :

  1. Terminal does not ask about anything after I enter Step 3 so I am stuck and I am not sure what to do next ?

gpg --keyserver pgp.mit.edu --recv-key B493319106CC3D1F252E19CBF806F422E222AA02

gpg: key F806F422E222AA02: public key “Alejandro García alejandro.garcia@disroot.org” imported
gpg: Total number processed: 1
gpg: imported: 1
My computer name :~/Downloads$

2.Do I need to verify this public key maybe at this point ?

3.Also the thing which confuse me is what they say here :

https://bisq.wiki/Downloading_and_installing#Bisq2_specific_instructions

about a key of Alejandro Garcia that at least a PGP Signature has expired .
Is it mean that PGP Public Key of Alejandro has not expired and above Terminal outcome is correct ?

29

What should I do next after that ? :

Terminal do not ask about anything now ?
Should I verify this key somehow ?

30

Your step 3 was:

copy/paste and import the key with this command

The results from running that command was:

gpg: key F806F422E222AA02: public key “Alejandro García alejandro.garcia@disroot.org” imported

This means that the result you wanted was successfully achieved without needing any further input from you, and you can proceed to the next command (which is better done with apt as you mentioned).

1 Like
31

After this command :

sudo apt install ./Bisq-2.1.6.deb

this is what I get :

Reading package lists
 Done
E: Unsupported file ./Bisq-2.1.6.deb given on commandline

In this case I do not have an Idea what to do now ?

32

I felt I gave clear instructions in my older post
sigh!

Anyway are you in the right directory where Bisq-2.1.6.deb is located?

33

Why I should be in directory and not in terminal ?

Let me please understand what have happen after Step 3 :

I used this command:

sudo apt install ./Bisq-2.1.6.deb

this is what I got :

Reading package lists
 Done
E: Unsupported file ./Bisq-2.1.6.deb given on commandline

I used the above command instead the two you suggested as I got feedback in the mean time that this command will be easier for me to remember for the future reference and it is the same good to do the job .

34

How’s that working out for you??? LOL
Please show me this:

ls Downloads
35

Thank you for asking .
Let me please do that tomorrow . It is very late already in my place .

36

Rest Easy. Tomorrow it is. :wink:

37

I’m going to try and make this as easy for you as possible, open a terminal and run:

sudo apt install #Leave a space after install

Now just grab the Bisq-2.1.6.deb and throw or drop the .deb in your terminal.
It shoul;d look something like this :smiley:

 sudo apt install '/home/me/Downloads/Bisq-2.1.6.deb'

That should do it.

38

I find it embarassing that regular Ubuntu doesn’t have a way of removing apps with a GUI since 19.10. It was possible with GNOME Software, but not anymore with the Snap Store. The newer Snap Store doesn’t even display user installed snaps that can be uninstalled, let alone user installed deb packages.

39

This is a support topic.

Please limit comments to helping the problem at hand.

Opinions and improvement suggestion are welcome in the appropriate categories (not in the Support and Help category)

3 Likes
40

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.