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---
layout: post
title: "CoreOS Installation on a Hetzner Server"
description: ""
category:
tags: []
---
{% include JB/setup %}
- log into the rescue system
`ssh root@{sever-ip}`
- run `installimage`
- choose "Other" -> "CoreOS-XXX"
- keep the default install.conf (you may have to quit with ESC 0, if F10 does not work)
- confirm deletion of partitions
* reboot into CoreOS
`reboot`
- log into CoreOS (using the same password as for the rescue system)
`ssh root@{sever-ip}`
CoreOS overwrites user data in /etc during booting (e.g. after a automatic system update). In order to make persistent changes, we have to edit
`/var/lib/coreos-install/user_data`:
- set the hostname
- add your public SSH key for the core user
- disable sftp `#Subsystem sftp internal-sftp`
- disable root login `PermitRootLogin no`
- disable password authentication `PasswordAuthentication no`
The docker systemd service is not enabled by default, but we need it to restart docker services after a reboot:
`systemctl enable docker.service`
Reboot to test changes:
`reboot`
Make sure you can login as core user:
`ssh core@{sever-ip}`
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