Canonical has re-released Ubuntu 20.04.2 LTS desktop images because of an installation bug that can likely make OEM installations done through the ubiquity installer to boot failure.
A few days ago, Ubuntu Linux distro publisher on Twitter announced Ubuntu 20.04.2 LTS desktop ISO images are affected by a bug that causes the ubiquity installer to fail to boot because of a missing kernel.
The Ubuntu 20.04.2 LTS packs updated kernel and graphics stacks backported from the more up-to-date Ubuntu 20.10 (Groovy Gorilla) operating system series.
The bug doesn’t affect offline installations of Ubuntu 20.04.2 LTS
As per the Launchpad entry of this bug, just a few machines encountered this bug while connected to the internet; which implies that everything worked fine if you did an offline installation.
Canonical said that soon after Ubuntu 20.04.2 LTS release, a regression was detected, which means that the Ubuntu installer can fail to install the Linux kernel on a few specific systems under certain specific conditions. Failure in the installation of the Linux kernel leads to boot-time failure.
As Canonical is a colossal company that publishes Ubuntu, offers commercial services and solutions for Ubuntu, it can’t take any risk to leave a major buggy release in the wild. So, canonical re-released Ubuntu 20.04.2 ISO images for Ubuntu Desktop and any official flavor utilizing the Ubiquity installer. This includes Ubuntu MATE, Xubuntu, Ubuntu Studio, Ubuntu Budgie, and Ubuntu Kylin.
Recently, Linux Kernel 5.8 reached its EOL. EOL:-End of Life.
Moreover, if you wish to install Ubuntu 20.04.2 LTS or any of its flavors, you can easily download the latest ISO images using the direct download links given below.
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