When you start the Linux OS – OSCore, from the bootable ISO file, you will just the a prompt.
To Install it, i following these steps
First we needed to be root
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sudo su |
Then we setup the IP address of the server
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ip addr add 192.168.1.1/24 dev eth0 ip link set dev eth0 up ip route add default via 192.168.1.254 |
Then we set the root password, and create a user
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passwd useradd itadmin passwd itadmin |
Then you ssh to the CoreOS server.
Then we need to setup the DNS settings
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su cd /etc rm resolv.conf vim resolv.conf |
Type these into resolv.conf
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nameserver 8.8.8.8 nameserver 8.8.4.4 |
We now need to setup the cloud-config-yaml file
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cd /home/core/ vim cloud-config.yaml |
Change the settings below so it fit you
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#cloud-config hostname: CoreOS_Name01 users: - name: "YOURUSERNAME" groups: - "sudo" - "docker" ssh_authorized_keys: - ssh-rsa YORESSSH-RSAKEY username@Domain.Prefix coreos: units: - name: static.network content: | [Match] Name=eth0 [Network] Address=192.168.1.1/24 Gateway=192.168.1.254 DNS=8.8.8.8 DNS=8.8.4.4 |
Then we just need to installed the CoreOS
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coreos-install -d /dev/sda -C stable -c cloud-config.yaml shutdown -h now |
Remember after you have installed CoreOS, the username and password, and aslo the root password, will be lost.
You need to set this up in the Cloud-config file, if you for some reason will like static password after.
Unmount the CDROM from the server
Start the server again
Usefull things, about CoreOS, after you have installed it
cloud-config is located in /var/lib/coreos-install/user_data
if you need Boot Core os, with autologin. (If you for some reason can’t access the server though network).
Reboot the server, and press “e” in grup (Bootmenu) to edit the first boot option.
At the end of the line that begins with “linux$” add ” coreos.autologin=tty1″ (no quotes).
Press CTRL-X or F10 to boot. You will be logged in as “core” when the system boots.
And use sudo to become root