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Document upgrade Red Hat / CentOS 7 to v 8.x #3109

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Apr 26, 2022
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Document upgrade Red Hat / CentOS 7 to v 8.x #3109

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1 change: 1 addition & 0 deletions docs/changelogs/CHANGELOG-2.0.md
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Expand Up @@ -27,6 +27,7 @@
- [#1452](https://github.com/epiphany-platform/epiphany/issues/1452) - Create Kubernetes Native Storage Epiphany configuration for Azure provider
- [#2891](https://github.com/epiphany-platform/epiphany/issues/2891) - Rook/Ceph Kubernetes Native Storage for AWS non-EKS
- [#2887](https://github.com/epiphany-platform/epiphany/issues/2887) - Create Kubernetes Native Storage Epiphany configuration for AWS provider
- [#2734](https://github.com/epiphany-platform/epiphany/issues/2734) - Document upgrade Red Hat / CentOS 7 to v 8.x

### Fixed

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4 changes: 4 additions & 0 deletions docs/home/ARM.md
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# ARM
### **NOTE**
---------------
ARM Architecture is not supported in Epiphany 2.0.0. This feature will be added to platform in version 2.0.1
--------------

From Epiphany v1.1.0 preliminary support for the ```arm64``` architecture was added. As the ```arm64``` architecture is relatively new to the datacenter at the time of writing only a subset of providers, operating systems, components and applications are supported. Support will be extended in the future when there is a need for it.

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14 changes: 14 additions & 0 deletions docs/home/howto/OS_UPGRADE.md
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Expand Up @@ -6,3 +6,17 @@ For information about upgrading Ubuntu release, please refer to [Ubuntu document

For testing purposes, we use Ansible playbook ([ci/ansible/playbooks/os/ubuntu/upgrade-release.yml](../../../ci/ansible/playbooks/os/ubuntu/upgrade-release.yml)),
however it is strongly recommended that an administrator is involved to prepare for and perform the upgrade.

# How to upgrade from RHEL 7.x to RHEL 8.x

Epiphany doesn't provide automation to perform Red Hat Enterprise Linux release upgrade.

For information about upgrading RHEL release, please refer to [RHEL documentation](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/upgrading_from_rhel_7_to_rhel_8/index).


For testing purposes, we use Ansible playbook ([ci/ansible/playbooks/os/rhel/upgrade-release.yml](../../../ci/ansible/playbooks/os/rhel/upgrade-release.yml)),
however it is strongly recommended that an administrator is involved to prepare for and perform the upgrade. This feature is still in experimental stage and is not fully operational yet.

# CentOS upgrade

Epiphany does not support upgrade of CentOS system since it's not supported in Epiphany 2.x at all. We switched to AlmaLinux 8 instead.
6 changes: 3 additions & 3 deletions docs/home/howto/UPGRADE.md
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Expand Up @@ -46,7 +46,7 @@ Your airgapped existing cluster should meet the following requirements:
other and have access to the internet:
2. The cluster machines/vm`s are **upgraded** to the following versions:
- AlmaLinux 8.5+
- RedHat 7.6
- RedHat 8.5+
- Ubuntu 20.04
3. The cluster machines/vm`s should be accessible through SSH with a set of SSH keys you provided and configured on each
machine yourself.
Expand Down Expand Up @@ -78,12 +78,12 @@ Your airgapped existing cluster should meet the following requirements:
with each other:
2. The airgapped cluster machines/vm`s are **upgraded** to the following versions:
- AlmaLinux 8.5+
- RedHat 7.6
- RedHat 8.5+
- Ubuntu 20.04
3. The airgapped cluster machines/vm`s should be accessible through SSH with a set of SSH keys you provided and
configured on each machine yourself.
4. A requirements machine that:
- Runs the same distribution as the airgapped cluster machines/vm`s (AlmaLinux 8, RedHat 7, Ubuntu 20.04)
- Runs the same distribution as the airgapped cluster machines/vm`s (AlmaLinux 8, RedHat 8, Ubuntu 20.04)
- Has access to the internet.
5. A provisioning machine that:
- Has access to the SSH keys
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