Does docker work with new ubuntu 20.04 lts - linux

I wanted to start learning docker, nut the docker docs donot mention the new ltd release of ubuntu 20.04 lts.
i tried installing mongo db on the new ubuntu 20.04 lts, it didnt work, their docs donot mention support for 20.04, so i was skeptical about docker too.
Can anyone verify?

It works fine on my ubuntu 20.04. I upgraded it from 19.10, but still. you can install docker from bionic repo.

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OpenVino can't install on ubuntu 22.04

can any one help me to install OpenVino in Ubuntu 22.04 LTS each time I try to install, it giving me errors (E: Unable to locate package openvino) . I tried to installing it with Exp1: sudo apt install openvino
Exp2: sudo apt install openvino-..
The latest OpenVINO™ 2022.1 release only supports Ubuntu 18.04 long-term support (LTS),64 bit and Ubuntu 20.04 long-term support (LTS), 64-bit.
Refer to the Release Notes for new features enablement and supportabilities.
Would your use-case allow to use OpenVINO in a Docker container? Then you could use one of the pre-built OpenVINO Docker container images.
Have a look here: https://docs.openvino.ai/latest/openvino_docs_install_guides_installing_openvino_docker_linux.html

How to make a compatible application with CQtDeployer for any version of Linux/Ubuntu?

I deployed my Qt Gui application with CQtDeployer on Ubuntu 18.04.
But, I can't run it on Ubuntu 16.04 / Ubuntu 14.04.
It has an error on version.
How can I fix it?
Just build and deploy your application on ubuntu 14.04
Your distribution not run because you build and deploy application on OS that has new version of (libc/libz) library.
So, If you want to create distribution that will be works correctly on all versions of your OS then you need to build and deploy application must early OS version.
Example
Application that was built on ubuntu 16.04 will be works great on ubuntu 18.04 , 20.04 and may be 22.04
But not 14.04 because minimum required libc level is some as on ubuntu 16.04.
How to get cqdeployer on ubuntu 14.04
Install from snap store:
sudo snap install cqtdeployer
sudo snap connect cqtdeployer:process-control
sudo snap connect cqtdeployer:removable-media
sudo snap connect cqtdeployer:system-backup
And NOTE
The ubuntu 14.04 too old. So i recommend to drop support of ubuntu 14.04.
User Ubuntu 16.04 as main build machine.

Openstack installation error on ubuntu 16.04

I'm getting the following error while installing Openstack on Ubuntu 16.04.7. Can someone please help.openstack-error
You are installing a version of OpenStack that is no longer supported on Ubuntu 16.04. You either need to upgrade to 20.04 or 18.04.
An alternative would be to try to install an older version of OpenStack that supports Ubuntu 16.04 by changing the branch you use for Devstack.
git checkout stable/rocky

How can I upgrade ubuntu server 14.04 LTS to 18.04 LTS?

I want to upgrade ubuntu server 14.04 LTS to 18.04 LTS without upgrading 16.04 LTS. can you please help me for the same.
No. You can not upgrade.
Ubuntu does have LTS→LTS upgrades, allowing you to skip intermediate non-LTS releases...
But you can't skip intermediate LTS releases. You have to go via 16.04.
Unless you want to do a fresh install of 18.04 on release.
I should also note that the LTS upgrade pathways are usually only available sometime after the main release. So don't expect to be able to upgrade from 16.04 on the day of 18.04's release.
Reference post - https://askubuntu.com/questions/1015728/how-to-upgrade-ubuntu-from-14-04-to-18-04

Cannot upgrade libc6, "Already newest version"

I have recently installed Linux Mint on a new machine and I am trying to download virtual box.
The problem is it won't download because of this error:
Error: Dependency is not satisfiable: libc6 (>=2.27)
When I run:
sudo apt-get install libc6
It tells me
libc6 is already the newest version (2.23-0ubuntu10).
When I update the cache of my software sources I get the message that it could not download all repository indexes so I assume it might be related to that but I have no idea how to fix it.
Sometimes it happens when you try to run the wrong version (build) of the application in your system.
As an example, the current Virtualbox version is 6.1.22. And I download it for the Ubuntu 19.10 / 20.04 / 20.10 / 21.04 host because there is no separate download link available for Linux Mint distribution. But my Linux Mint distribution is 19.3 cinnamon and Mint 19.3 is based on Ubuntu 18.04 LTS. So, the Virtualbox version which is built for Ubuntu 20.04, 20.10, 21.04 is not going to work for the distribution which is using Ubuntu 18.04. This is the reason for getting ( Error: Dependency is not satisfiable: libc6 (>=2.29) ) error.
When I downloaded the Virtualbox which is particularly built for Ubuntu 18.04 everything worked fine :)
For more clarity watch this video https://www.youtube.com/watch?v=1K2zx32tBwA
OR, just download the VirtualBox from the Software Center. that will work fine too.
I couldn't solve the issue but I managed to download virtual box through the software manager.

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