[CentOS] Upgrading CentOS from 7 to 8

J Martin Rushton
Wed, 29 Sep 2021 13:29:27 -0000

It's not supported.  RH has a method that sometimes works for RHEL, but
there is no safe CentOS way to do a major upgrade.  You need to
reinstall the OS and migrate your applications.


On 29/09/2021 14:24, Gesti? Servidors wrote:
> Hi,
>
> I'm doing some tests of upgrading CentOS from 7 to 8 reading this
step-by-step guide:
https://netshopisp.medium.com/how-to-upgrade-linux-servecentos-7-to-centos-8-ec2db96a189b
>
> I'm trying this upgrade in a VM, so I can save "snapshots"
and restart in a past saved point. However, all my test ends wrong, exacly in
Step 4 when I run "rpm -e `rpm -q kernel`". Then, systems says that
some packages are kernel dependencies. After I remove that dependencies, I
can't remove kernel...
>
> Anybody has tested process upgrade from 7 to 8?
>
> Thanks.
>
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--
J Martin Rushton MBCS