Ventoy/INSTALL/grub/localboot.cfg

if [ "$grub_platform" = "pc" ]; then
    menuentry 'Search and boot Windows' --class=boot_windows {
    
        set partid=3
        while [ $partid -le 128 ]; do
            if vt_check_part_exist $partid; then
                for bt in bootmgr BOOTMGR Bootmgr BootMGR; do
                    if [ -f ($vtoydev,$partid)/$bt ]; then
                        set root=($vtoydev,$partid)
                        ntldr /$bt
                        boot
                    fi
                done
            else
                break
            fi
            vt_incr partid 1
        done
    
        if search -n -s -f /Boot/BCD; then
            for bt in bootmgr BOOTMGR Bootmgr BootMGR; do
                if [ -f /$bt ]; then
                    ntldr /$bt
                    break
                fi
            done
        elif search -n -s -f /NTDETECT.COM; then
            drivemap -s hd0 $root
            ntldr /ntldr
        else
            echo "Windows NOT found ..."
        fi        
    }
    
    menuentry 'Search and boot Grub4dos' --class=boot_g4d {
        if search -n -s -f /grldr; then
            ntldr /grldr
        else
            echo "Grub4dos NOT found ..."
        fi        
    }
    
    menuentry 'Boot the 1st local disk' --class=boot_disk {
        set root=(hd0,1)
        chainloader +1
        boot
    }
    
    menuentry 'Boot the 2nd local disk' --class=boot_disk {
        set root=(hd1,1)
        chainloader +1
        boot
    }
    
    menuentry 'Boot the 3rd local disk' --class=boot_disk {
        set root=(hd2,1)
        chainloader +1
        boot
    }
    
else

    menuentry 'Search and boot Windows' --class=boot_windows {    
        
        set partid=3
        while [ $partid -le 128 ]; do
            if vt_check_part_exist $partid; then
                if [ -f ($vtoydev,$partid)/EFI/Microsoft/Boot/bootmgfw.efi ]; then
                    set root=($vtoydev,$partid)
                    terminal_output  console
                    chainloader /EFI/Microsoft/Boot/bootmgfw.efi
                    boot
                fi
            else
                break
            fi
            vt_incr partid 1
        done
                
        if search -n -s -f /EFI/Microsoft/Boot/bootmgfw.efi; then
            terminal_output  console
            chainloader /EFI/Microsoft/Boot/bootmgfw.efi
            boot
        else
            echo "Windows NOT found ..."
        fi        
    }
    
    menuentry 'Search and boot BOOTX64.EFI' --class=boot_uefi {    
        if search -n -s -f /efi/boot/bootx64.efi; then
            terminal_output  console
            chainloader /efi/boot/bootx64.efi
            boot
        else
            echo "BOOTX64.EFI NOT found ..."
        fi        
    }

fi

menuentry 'Return to previous menu [Esc]' --class=vtoyret VTOY_RET {
    echo 'Return ...'
}