Booting CoreOS via PXE

[Arnaud Brunet]

Hello,

I try to start CoreOS via PXE in VirtualBox.

I setup my PXE server. It works with a debian installer

Then I follow the https://coreos.com/os/docs/latest/booting-with-pxe.html documentation.
But I can not start my server.


First I have an error stating that 'baselayout.conf' is missing. View screenshot 'missing_baselayout.png'
Then I have a failure on switch-root. View screenshot 'failed_to_start_switch_root.png'

My PXE boot options

LABEL coreos
  kernel coreos_production_pxe.vmlinuz
  initrd coreos_production_pxe_image.cpio.gz
  append cloud-config-url=http://192.168.1.1/pxe-cloud-config.yml

My config.yml

coreos:
  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start
ssh_authorized_keys:
  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQAB...== root@pxe

Did I miss something ?

Regards,
Arnaud

[Brandon Philips]

What version of CoreOS Linux are you using? Looks like something might be messed up with our rootfstype=tmpfs setup.

Can you provide the URL you downloaded coreos_production_pxe.vmlinuz and coreos_production_pxe_image.cpio.gz from?

[Arnaud Brunet]

Thanks Brandon,

I followed https://coreos.com/os/docs/latest/booting-with-pxe.html. So I downloaded them from

https://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz
https://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz

I downloaded them from my brower and I copied them with a VirtualBox shared folders.

[Arnaud Brunet]

Ok I found my problem.

I had more RAM on the virtual machine. And now it's good.

Thanks

[Jacob Tomlinson]

Sorry to jump on an old thread but I'm having the same issue. The machine is physical with 8GB of RAM so I can't simply add more.

I am also using the production links above.

Thanks

[Jacob Tomlinson]

I've resolved this by switching the root filesystem kernal option to use local disk instead of in memory.