# Network booting

https://documentation.ubuntu.com/server/how-to/installation/how-to-netboot-the-server-installer-on-amd64/

https://chatgpt.com/c/6765b743-ca68-800c-9a63-dd5768d20b4c

TODO: create squashfs image from live system

`apt install dnsmasq`

`mkdir -p /srv/tftp`

`vim /etc/dnsmasq.conf`

```
interface=<your interface>,lo
bind-interfaces
dhcp-range=<your interface>,192.168.0.100,192.168.0.200
dhcp-boot=pxelinux.0
dhcp-match=set:efi-x86_64,option:client-arch,7
dhcp-boot=tag:efi-x86_64,grubx64.efi
enable-tftp
tftp-root=/srv/tftp
```

~~`apt install debootstrap chroot squashfs-tools`~~

`cp /boot/vmlinuz /srv/tftp/vmlinuz`

`cp /boot/initrd.img /srv/tftp/initrd.img`

`apt download grub-efi-amd64-signed`

`dpkg-deb --fsys-tarfile grub-efi*deb | tar x ./usr/lib/grub/x86_64-efi-signed/grubnetx64.efi.signed -O > /srv/tftp/grubx64.efi`

`apt download grub-common`

`dpkg-deb --fsys-tarfile grub-common*deb | tar x ./usr/share/grub/unicode.pf2 -O > /srv/tftp/unicode.pf2`

`mkdir -p /srv/tftp/grub`

`vim /srv/tftp/grub/grub.cfg`

```grub
set default=0
set timeout=5

menuentry "Boot Diskless Client" {
    #linux /vmlinuz boot=live components netboot=nfs nfsroot=192.168.1.2:/opt/clients/live/ root=/dev/nfs rw ip=dhcp
    linux /vmlinuz boot=live components ip=dhcp
    initrd /initrd.img
}
```


`vim /etc/netplan/10-static.yaml`

```yaml
network:
  version: 2
  ethernets:
    enp0s8:
      dhcp4: false
      dhcp6: false
      addresses:
        - 192.168.11.1/24
```

`systemctl edit dnsmasq.service`

```
[Unit]
After=network-online.target
Wants=network-online.target
```


`grub-mkimage -p /grub -o /srv/tftp/grubx64_custom.efi -O x86_64-efi part_gpt part_msdos fat ext2 ntfs iso9660 loopback linux multiboot efi_gop efi_uga usb usb_keyboard uhci ohci ehci xfs configfile normal net tftp`

Working shell, but "no network card found"