Upgrade process from CentOS7

[Adrien.D]

Hi all,

Is it possible to migrate CentOS 7 to 8 ?

The way used for RHEL7 to 8 not work. (leapp)

Thanks

[hunter86_bg]

The migration tools provided by Red Hat for 7 -> 8 are not adapted for CentOS.
They will not work (unless you are very lucky).

[Adrien.D]

The only way is only reinstallation ?

[TrevorH]

There has never been an upgrade from one major version to another. Well, there was briefly for el7.0 but the packages soon got out of date and no-one was willing to do any work to fix them so they were removed. Plus it never worked properly anyway.

[Drizzt]

Since upstream is offering a mean to upgrade from RHEL7 to RHEL8, we were hoping there was a way to do the same with CentOS 8.
Is it a work in progress?

[Wolf101]

We were also hoping there would be an upgrade path... If anyone works one out, please post it up for us all to try. I am not looking forward to the manual reinstall of all the servers that we had to endure for the 6-7 migration....

[Mike_Rochefort]

Since upstream is offering a mean to upgrade from RHEL7 to RHEL8, we were hoping there was a way to do the same with CentOS 8.
Is it a work in progress?

If you haven’t, I highly recommend reading the docs on it. The upgrade process is minimally supported, and has huge restrictions on what can be upgraded, and what can totally fail.

It really won’t be worth the effort.

Cheers,
Mike

[jlehtone]

I see two mind-sets:

1. Make fresh install. Drop in config. Dream fulfilled.
This requires that you do have the config (and data) in a form that can be "dropped in". I.e. "outside".

2. Pray, hope, and duct-tape that the in-place conversion does not wipe your preciousss to oblivion.


Either way: have a backup.

[foxb]

Upstream doc on upgrading: https://access.redhat.com/documentation ... el_8/index

Tool used is leapp

It shoudl be in extras, but it is not.
I've tried to install it following https://leapp-to.github.io/gettingstarted#centos-7

But it fails with

Code: Select all

Requires: leapp-repository >= 0.8.1
Available: leapp-repository-0.3-1.devel.20181116.git.72

Any ideas on a fix?

[TrevorH]

There are currently no plans to provide leapp for CentOS.