
insmod part_gpt
insmod fat
insmod chain

menuentry 'Chainload Grub2 EFI from ESP' --id local_chain_hd0 {
  echo Chainloading Grub2 EFI from ESP, enabled devices for booting:
  ls
  echo "Trying /EFI/fedora/shim.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/fedora/shim.efi
  if [ -f ($chroot)/EFI/fedora/shim.efi ]; then
    chainloader ($chroot)/EFI/fedora/shim.efi
    echo "Found /EFI/fedora/shim.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/fedora/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/fedora/grubx64.efi
  if [ -f ($chroot)/EFI/fedora/grubx64.efi ]; then
    chainloader ($chroot)/EFI/fedora/grubx64.efi
    echo "Found /EFI/fedora/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/redhat/shim.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/redhat/shim.efi
  if [ -f ($chroot)/EFI/redhat/shim.efi ]; then
    chainloader ($chroot)/EFI/redhat/shim.efi
    echo "Found /EFI/redhat/shim.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/redhat/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/redhat/grubx64.efi
  if [ -f ($chroot)/EFI/redhat/grubx64.efi ]; then
    chainloader ($chroot)/EFI/redhat/grubx64.efi
    echo "Found /EFI/redhat/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/centos/shim.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/centos/shim.efi
  if [ -f ($chroot)/EFI/centos/shim.efi ]; then
    chainloader ($chroot)/EFI/centos/shim.efi
    echo "Found /EFI/centos/shim.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/centos/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/centos/grubx64.efi
  if [ -f ($chroot)/EFI/centos/grubx64.efi ]; then
    chainloader ($chroot)/EFI/centos/grubx64.efi
    echo "Found /EFI/centos/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/debian/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/debian/grubx64.efi
  if [ -f ($chroot)/EFI/debian/grubx64.efi ]; then
    chainloader ($chroot)/EFI/debian/grubx64.efi
    echo "Found /EFI/debian/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/ubuntu/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/ubuntu/grubx64.efi
  if [ -f ($chroot)/EFI/ubuntu/grubx64.efi ]; then
    chainloader ($chroot)/EFI/ubuntu/grubx64.efi
    echo "Found /EFI/ubuntu/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/sles/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/sles/grubx64.efi
  if [ -f ($chroot)/EFI/sles/grubx64.efi ]; then
    chainloader ($chroot)/EFI/sles/grubx64.efi
    echo "Found /EFI/sles/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/opensuse/grubx64.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/opensuse/grubx64.efi
  if [ -f ($chroot)/EFI/opensuse/grubx64.efi ]; then
    chainloader ($chroot)/EFI/opensuse/grubx64.efi
    echo "Found /EFI/opensuse/grubx64.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo "Trying /EFI/Microsoft/boot/bootmgfw.efi "
  unset chroot
  search --file --no-floppy --set=chroot /EFI/Microsoft/boot/bootmgfw.efi
  if [ -f ($chroot)/EFI/Microsoft/boot/bootmgfw.efi ]; then
    chainloader ($chroot)/EFI/Microsoft/boot/bootmgfw.efi
    echo "Found /EFI/Microsoft/boot/bootmgfw.efi at $chroot, attempting to chainboot it..."
    sleep 2
    boot
  fi
  echo Partition with known EFI file not found, you may want to drop to grub shell
  echo and investigate available files updating 'pxegrub2_chainload' template and
  echo the list of known filepaths for probing. Contents of \EFI directory:
  ls ($chroot)/EFI
  echo The system will halt in 2 minutes or press ESC to halt immediately.
  sleep -i 120
  halt --no-apm
}

menuentry 'Chainload into BIOS bootloader on first disk' --id local_chain_legacy_hd0 {
  set root=(hd0,0)
  chainloader +1
  boot
}

menuentry 'Chainload into BIOS bootloader on second disk' --id local_chain_legacy_hd1 {
  set root=(hd1,0)
  chainloader +1
  boot
}
