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auricom-home-cluster/docs/pxe.md
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Opnsense | PXE

Setting up TFTP

  • Setup TFTP and network booting on DHCPv4 server
  • Create an nginx location to file system /var/lib/tftpboot
  • Create an nginx http server listening on 30080 TCP
  • Enable dnsmasq in the Opnsense services settings (set port to 63)
  • Copy over pxe.conf to /usr/local/etc/dnsmasq.conf.d/pxe.conf
  • SSH into opnsense and run the following commands...
$ mkdir -p /var/lib/tftpboot/pxelinux/
$ curl https://releases.ubuntu.com/20.04/ubuntu-20.04.4-live-server-amd64.iso -o /var/lib/tftpboot/ubuntu-20.04.4-live-server-amd64.iso
$ mount -t cd9660 /dev/`mdconfig -f /var/lib/tftpboot/ubuntu-20.04.4-live-server-amd64.iso` /mnt
$ cp /mnt/casper/vmlinuz /var/lib/tftpboot/pxelinux/
$ cp /mnt/casper/initrd /var/lib/tftpboot/pxelinux/
$ umount /mnt
$ curl http://archive.ubuntu.com/ubuntu/dists/focal/main/uefi/grub2-amd64/current/grubnetx64.efi.signed -o /var/lib/tftpboot/pxelinux/pxelinux.0
  • Copy grub/grub.conf into /var/lib/tftpboot/grub/grub.conf
  • Copy nodes/ into /var/lib/tftpboot/nodes

PXE boot on bare-metal servers

Press F12 key during 15-20 seconds to enter PXE IPv4 boot option