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This article will explain in detail the installation process and related configuration of CoreOS bare metal iso. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The bare metal installs CoreOS through iso, and the individual has traveled a lot. Here is the complete process of deployment and configuration from scratch.

First, install CoreOS to hard disk 1. Prepare Live iso image and make usb boot disk

Live iso download address

two。 Set up Apache Server service

Configure Apache to access static files

Create a directory named 1745.7.0 under the accessed root path (htdocs/ under win)

3. Download the installation image and sig signature file

Download address

Coreos_production_image.bin.bz2

Coreos_production_image.bin.bz2.sig

Put these two files in the 1745.7.0 directory

4. Write a good cloud-config.yaml

Let's simplify that we don't have to configure the etcd cluster.

# cloud-config hostname: coreosusers:-name: core ssh-authorized-keys:-ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwKMzeSX8iavwLGuok. -groups:-sudo-docker

Ssh-authorized-keys is a key pair that must be configured for password-less login. We can generate (export Public Key) through the Client Key Manager feature in the Bitvise SSH Client client, and then copy the public key string value to the back of the ssh-rsa. Notice that there is a space in the middle.

We can configure the network after installation, or we can configure it in cloud-config.yaml.

# cloud-config hostname: coreosusers:-name: core ssh-authorized-keys:-ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwKMzeSX8iavwLGuok. -groups:-sudo-docker networkd: units:-name: 10-static.network contents: | [Match] Name=enp0s3 [Network] Address=192.168.57.102/24-name: 20-dhcp.network contents: | [Match] Name=enp0s8 [Network] DHCP=yes

Put this file in the htdocs directory

5. Bare metal startup and installation of CoreOS Live

Download the cloud-config.yaml file on the self-built Apache server (ip:192.168.1.100)

Wget http://192.168.1.100/cloud-config.yaml

Perform installation

Sudo coreos-install-d / dev/sda-b http://192.168.1.100-c. / cloud-config.yaml

After the installation is complete, restart the machine and boot from the hard drive.

Second, configure CoreOS1. SSH key login

Check IP and log in via user name (core) + private key (previously generated)

two。 Set root password

After logging in, execute the command to change the root password

Sudo passwd root3. Configure the network

Configuration file path: / etc/systemd/network/

Static IP configuration file (if not, create your own): 10-static.network

[Match] Name=en* [Network] DNS=192.168.3.1Address=192.168.3.200/24Gateway=192.168.3.1

Dynamic IP configuration file (if not, create your own): 20-dhcp.network

[Match] Name=en* [Network] DHCP=yes

You need to restart the network service after the update

Sudo systemctl restart systemd-networkd4. Other commonly used commands sudo hostnamectl set-hostname coreos1 # modify hostname setenforce 1Accord 0 # turn on and off SELinuxgetenforce # View SELinux status timedatectl # View system time timedatectl list-timezones # View list of supported time zones timedatectl set-timezone Asia/Shanghai # set time zone to Shanghai about CoreOS bare metal iso installation process and related configuration here, I hope the above can be helpful to you, you can learn more knowledge. If you think the article is good, you can share it for more people to see.

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