12
votes
Unity3d Installation issues GPG error repository not signed
TL;DR
wget -qO - https://hub.unity3d.com/linux/keys/public | gpg --dearmor | sudo tee /usr/share/keyrings/Unity_Technologies_ApS.gpg > /dev/null
sudo sh -c 'echo "deb [signed-by=/usr/share/...
- 221
9
votes
Accepted
How to use multiple options in apt sources.list?
There are two formats that allow you to add multiple options to apt sources: the one-line style format, which uses .list files in /etc/apt/sources.list.d, and the DEB822 style format, which uses ....
- 3,189
5
votes
How to know which apt repository is slow?
The apt utility has several debugging options, which are listed in man apt.conf.
A useful debug parameter for sudo apt update is the Debug::pkgAcquire option, as stated here:
Debug::pkgAcquire
...
- 26.3k
4
votes
Update error: E: The repository 'cdrom://Ubuntu 22.04.1 LTS _Jammy Jellyfish_ - Release amd64 (20220809.1) jammy Release' does not have a Release file
Disable the cdrom repository:
sudo sed -e '/cdrom/s/^/#/' -i /etc/apt/sources.list
sudo apt update
- 3,507
4
votes
Accepted
apt-get - select the oldest google-chrome file in sources.list.d
I don't think what you explicitly asks is possible (to use only the oldest source file).
But instead, you can make a DPkg::Post-Invoke command that runs after using apt/dpkg to remove the file you don'...
- 26.3k
3
votes
When adding a repository can I add an auto enter command in the terminal?
You can use the echo command along with a pipe to simulate pressing Enter and automate the process, like this:
echo | sudo add-apt-repository ppa:vbernat/haproxy-2.8
This will send an empty line to ...
- 1,290
3
votes
Kubernetes installation failing - Ubuntu 16.04
For Amogh and Guru,
The reason this doesn't work anymore, as of January 31st 2024, is that K8s changed repo locations. See https://kubernetes.io/blog/2023/08/15/pkgs-k8s-io-introduction/#how-to-...
- 31
3
votes
size of mirror repositories
As of today (2023-05-20), the size of ubuntu-ports, ubuntu archive, cdimage, and releases are:
module name
size
/ubuntu-ports
2.5 TB
/ubuntu
2.1 TB
/ubuntu-cdimage
410.2 GB
/ubuntu-releases
36.4 ...
- 31
2
votes
Accepted
Why does nexus repository response 502 Bad Gateway error?
You must update your Nexus. See https://community.sonatype.com/t/apt-proxy-repo-for-ubuntu-2204-results-in-502-bad-gateway/8670
- 36
2
votes
Unity3d Installation issues GPG error repository not signed
The important bit from the Unity forums link above:
https://forum.unity.com/threads/keyring-error.1290203/
wget -o- https://hub.unity3d.com/linux/keys/public
file public
gpg --no-default-keyring --...
- 29
2
votes
Accepted
How Linux kernel is synchronized with Ubuntu?
The Ubuntu kernel team maintain their own flavors of the Linux kernel for Ubuntu, because of the feature set Ubuntu depends on.
The Ubuntu kernel FAQ states:
What differentiates the Ubuntu Kernel ...
- 26.3k
2
votes
Accepted
How can I know which updates come from which of the defined repos?
As you already know, you can list upgradable packages with:
apt list --upgradable
... for example on my system that shows:
$ apt list --upgradable
Listing... Done
gdb/lunar 13.1-2ubuntu2 amd64 [...
- 32.3k
2
votes
Trouble Updating WSL Ubuntu: 404 Not Found Error and Repository Issue
The repository doesn't contain any packages for Ubuntu 22.04 (jammy). It contains packages only for Ubuntu 14.04 (trusty).
Disable the repository:
sudo sed -e '/mc3man/s/^/#/' -i /etc/apt/sources.list{...
- 3,507
2
votes
Accepted
NO_PUBKEY and Some of The File Has an Unsupported Filetype
Short answer:
Delete the mysql.list then reinstall it.
sudo rm /etc/apt/trusted.gpg.d/mysql.gpg
sudo rm /etc/apt/sources.list.d/mysql.list
wget https://repo.mysql.com//mysql-apt-config_0.8.29-1_all....
- 3,507
2
votes
Do files at /etc/apt/sources.list.d need to have an extension '.list'?
They can also end with .sources if you are using deb822 format.
- 121
1
vote
Accepted
how can I remove a dpkg installed repository?
Unfortunately, dpkg only works to remove package files and not repository entries.
You can find the location of the repository lists that contain the corresponding URL with this:
cd /etc/apt &&...
- 74.9k
1
vote
Finding Precise Pangolin (12.04) repository
The url for EOL repositories is https://old-releases.ubuntu.com/releases/
The direct link for Precise Pangolin (12.04.5 LTS) is: https://old-releases.ubuntu.com/releases/precise/
This Ununtu comunity ...
- 6,799
1
vote
Accepted
How to delete GPG key and repository? Key is not shown under apt-key
Normally you would use add-apt-repository -r , but https://github.com/bcicen/ctop?tab=readme-ov-file#debianubuntu does not appear to be a PPA. Looking at the installation steps, we can just reverse ...
- 4,650
1
vote
Flatpak repository error on 23.10
The mantic repository doesn't exist, you can try with jammy.
Remove the repository:
sudo add-apt-repository -r ppa:flatpak/stable
Add jammy:
sudo add-apt-repository "deb https://ppa....
- 3,507
1
vote
sudo apt update & sudo apt-get update error plz help me
Your Ubuntu version isn't supported. It went EOL in april 03.
Released End of Standard Support
18.04 LTS (Bionic Beaver) Apr 2018 Apr 2023
Please update to a ...
- 6,799
1
vote
Accepted
Why am I not getting any package from the Influxdb repository?
The command lines I executed were correct, but somehow the
apt list influx*
I used to find all version was the culprit: if I run
apt list influxdb*
I get all packages I expect, both the 1.x and the ...
- 287
1
vote
Why am I not getting any package from the Influxdb repository?
What you added is NOT the proper URL for your repository. NOWHERE in the instructions did it say to replace debian or stable with ubuntu and the codename of your Ubuntu version.
The instructions from ...
- 74.9k
1
vote
How to get Ubuntu 20.04.6 LTS play h265 videos?
You will need the codecs, but whether you can smoothly play h265 will depend on the CPU.
First, remove the outdated with PPA sudo apt-add-repository --remove ppa:strukturag/libde265
Then, install all ...
- 28.5k
1
vote
Accepted
How to upgrade the repositories locations from focal to jammy? (apt update)
Open Software & Sources, and go to the Other Software Tab.
Find the repository corresponding to MySQL and Docker, and click on Edit.
Afterwards, change focal to jammy. Run sudo apt update.
Beware ...
- 28.5k
1
vote
Use of Files in Ubuntu Repository Section "Restriced/l"
The official description of the "restricted" software source is "Proprietary drivers for devices".
These are packages that are not open source, but released by hardware vendors ...
- 4,069
1
vote
Accepted
What is this repo and what does it do: "signal-xenial sources.list"? And is it safe to delete?
signal-xenial.list in /etc/apt/sources.list.d is the list file for the Signal messenger package. It is called xenial because it hasn't been updated since xenial, but it will still pull in the most ...
- 29.3k
1
vote
Why is Kubernetes K8s not in official Ubuntu repos?
You can install the kubectl snap package in all currently supported versions of Ubuntu by running the following command:
sudo snap install microk8s --classic
sudo snap install kubectl --classic
sudo ...
- 115k
1
vote
I'm trying to install Stardog on my linux system for some projects but curl isn't working and this is what happens with the documentation
aliza@ingestrom:~$ sudo curl http://packages.stardog.com/stardog.gpg.pub | apt-key add
This runs curl as root. But curl only connects to a website (http://packages.stardog.com/stardog.gpg.pub), and ...
- 22.7k
1
vote
I am unable to install : sudo apt get update and also sudo apt-get update, kind of similar issues i suspect, but I am not sure
It seems that you are using the Wine repository, but have an ARM processor, which the repository does not support.
So, open Software & Updates, and remove that repository in the list of Other ...
- 28.5k
1
vote
When adding a repository can I add an auto enter command in the terminal?
You can also use the yes command as follows:
yes | sudo add-apt-repository ppa:vbernat/haproxy-2.8
What yes does is output a string continuously until killed by pressing Ctrl+C. So if you run:
yes
...
- 14.6k
Only top scored, non community-wiki answers of a minimum length are eligible