The repository 'http://apt.kubernetes.io kubernetes-xenial Release' does not have a Release file

aditya03

Hi @chrispokorni ,

I am at final stage of my class, I am setting up an HAproxy.
I was installing kubelet,kubeadm,kubectl for the same on a secondary node, but I got an error which isn't letting me install above three services.
Error is at apt-get update followed by unable to locate packages.

root@ip-172-31-37-153:~# apt update
Hit:1 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:4 https://download.docker.com/linux/ubuntu focal InRelease
Hit:5 http://security.ubuntu.com/ubuntu focal-security InRelease
Ign:6 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
Err:7 https://packages.cloud.google.com/apt kubernetes-xenial Release
404 Not Found [IP: 142.251.42.46 443]
Reading package lists... Done
E: The repository 'http://apt.kubernetes.io kubernetes-xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

root@ip-172-31-37-153:~# apt-get install -y kubeadm=1.28.1-00 kubelet=1.28.1-00 kubectl=1.28.1-00
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package kubeadm
E: Unable to locate package kubelet
E: Unable to locate package kubectl

What could be the problem here ?

Thanks
Aditya Modak

svadlama

I'am facing the same issue since this morning. I am running a server on Cloud Guru though.

rebekah

yeah same here if you want to get the older version 1.28 in order to practice the upgrade do this:

add this(no newline):
deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /
to the file: /etc/apt/sources.list.d/kubernetes.list

get the key:
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

confirm the packages are on your vm:
apt-cache madison kubeadm

switch the 1.28 to 1.29 for the most recent version

chrispokorni

Hi @aditya03,

With the change to the new Kubernetes images repo, the installation steps are no longer backward compatible, and we have to be explicit about the desired version for the apt source file and gpg key.

To install components versioned 1.28.1 run the following:

curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list

sudo apt update

sudo apt install -y kubeadm=1.28.1-1.1 kubelet=1.28.1-1.1 kubectl=1.28.1-1.1

To install components versioned 1.29.1 run the same commands but replace 28 with 29 for gpg key, apt source, and install.

Regards,
-Chris

svadlama

Thank you @chrispokorni. It worked.

aditya03

Hi @chrispokorni

Thanks for the help, successfully created cluster with HA👍.

titu.tiru9

This is my common.sh script i am still getting the same error. I tried 1.28.1-1.1 version first but same error.

E: Unable to locate package kubeadm
E: Unable to locate package kubelet
E: Unable to locate package kubectl

#!/bin/bash
 
sudo apt update
 
sudo apt install docker.io -y
sudo systemctl enable --now docker
 
sudo swapoff -a
 
sudo apt install -y apt-transport-https ca-certificates curl
 
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.29/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
 
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.29/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
 
sudo apt update 
 
sudo apt install -y kubeadm=1.29.1-1.1 kubelet=1.29.1-1.1 kubectl=1.29.1-1.1
 
### Pod Network
kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml
 

chrispokorni

Hi @titu.tiru9,

In the latest lab guide release you can find many installation and configuration steps before getting to this point, that resolve dependencies for the recommended container runtime and the tools needed to successfully download and set the gpg key and apt source for Kubernetes. Try updating your script with those steps as well and let us know if they helped.

Regards,
-Chris

vkings

Thanks, It worked.

a957001360h

hi, if I want install version 1.21.
any active function to use?

chrispokorni

Hi @a957001360h,

Considering that Kubernetes v1.21 is quite outdated, the official installation guide no longer provides installation and configuration instructions for Kubernetes releases older than v1.25.

However, you may try to use the steps presented in my comment above with the necessary corrections for v1.21.

Regards,
-Chris

justindowe

Thank you Chris!

mattdevops

@rebekah said:
yeah same here if you want to get the older version 1.28 in order to practice the upgrade do this:

add this(no newline):
deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /
to the file: /etc/apt/sources.list.d/kubernetes.list

get the key:
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

confirm the packages are on your vm:
apt-cache madison kubeadm

switch the 1.28 to 1.29 for the most recent version

Hi Rebekah,
I am running WSL2 on Ubuntu - is there a different command for me? Ty

chrispokorni

Hi @mattdevops,

Installing Kubernetes in a VM is much better suited for learning purposes as opposed to installing it on WSL. However, if this is the desired approach, the commands depend on your WSL distribution. If it is the default Ubuntu then the commands are the same. For other distributions please consult the official kubernetes.io installation documentation.

Regards,

-Chris

nailadjmas

Thank you @chrispokorni, this answer made my day!

sreelekhachowdary

Thanks @chrispokorni it worked

saks

Hi Chris..running a server on Cloud Guru though and I'm having the same issue, I tried your commands from March 4th above but having the same errors or is there a newer version thus the errors ...Thanks

saks

@chrispokorni

chrispokorni

Hi @saks,

Please use the installation and configuration instructions included with the latest course release. You will also find video guides for AWS and GCP infrastructure provisioning, to support the labs.

The instructions referenced above were for an earlier release of the training material.

I am unfamiliar with the CG environment, however, the lab exercises have been completed successfully directly on Google Cloud GCE, AWS EC2, Azure VM, IBM Cloud VS, DigitalOcean VM, and on several local hypervisors, such as VirtualBox, KVM, VMware Workstation and Player.

Regards,
-Chris