我创建了一个小操作系统（未完成），仅使用16位汇编，可与qemu-system-i386一起工作。
但现在我想在一台真实的的机器上测试它，并在出现错误的情况下使它与真正的PC兼容。
这是操作系统
Makefile：

boot = bootloader.asm
kernel = kernel.asm

boot_o = bootloader.bin
kernel_o = kernel.bin

bin = myos.bin

asm_compiler = nasm
qemu = qemu-system-i386

compile:
    $(asm_compiler) -f elf32 -g $(boot) -o $(boot_o)
    $(asm_compiler) -f elf32 -g $(kernel) -o $(kernel_o)
    ld -m elf_i386 -nmagic -T linker.ld -o $(bin) $(boot_o) $(kernel_o)

run:
    $(qemu) -fda $(bin)

clean:
    -rm $(boot_o)
    -rm $(kernel_o)
    -rm $(bin)

字符串
linker.ld:

OUTPUT_FORMAT(binary)
ENTRY(_start)

SECTIONS
{
    . = 0x7c00;

    bootloader :
    {
        bootloader.bin (.boot);
    }

    kernel :
    {
        kernel.bin (.kernel);
    }

    /DISCARD/ :
    {
        *(.bss*);
        *(COMMON*);
    }
}

型
bootloader.asm:

bits 16

section .boot
global _start

_start:
    cli
        
    xor ax, ax
    mov ds, ax
    mov es, ax
        
    mov ss, ax
    mov sp, 0x9000

    mov bx, 0x7e00
    mov al, 1
    mov dh, 0
    mov dl, 0
    mov ch, 0
    mov cl, 2
    mov ah, 2
    int 0x13

    pusha

    mov ax, 0x0700  ; function 07, AL=0 means scroll whole window
    mov bh, 0x07    ; character attribute = white on black
    mov cx, 0x0000  ; row = 0, col = 0
    mov dx, 0x184f  ; row = 24 (0x18), col = 79 (0x4f)
    int 10h         ; call BIOS video interrupt

    popa

    pusha

    mov ah, 0x02
    xor dx, dx
    int 10h

    mov si, boot_msg
    mov ah, 0x0e
    boot_characterLoop:
        lodsb
        or al, al
        jz continue
        int 10h

    jmp boot_characterLoop
    continue:
        mov ah, 0x86
        mov cx, 0xF
        mov dx, 0x4240
        int 15h
        int 15h
        int 15h

    popa

    jmp 0x7e00

boot_msg: db "The os is correctly loaded"

times 510-($-$$) db 0
dw 0xAA55

型
kernel.asm:

bits 16

section .kernel
global _start_kernel

_start_kernel:

    mov ax, 0x3
    int 10h

    commandLoop:

        mov si, user
        call print

        mov di, input_string
        call input

        ifCommand:
            cld
            mov si, C_shutdown
            mov di, input_string
            mov cx, CL_shutdown
            repe cmpsb
            jz thenCommandShutdown
            
            cld
            mov si, C_reboot
            mov di, input_string
            mov cx, CL_reboot
            repe cmpsb
            jz thenCommandReboot

            cld
            mov si, C_clear
            mov di, input_string
            mov cx, CL_clear
            repe cmpsb
            jz thenCommandClear

            jmp elseCommand

        thenCommandShutdown:
            call shutdown

        thenCommandReboot:
            call reboot
        
        thenCommandClear:
            call clearScreen
            jmp commandLoop

        elseCommand:
            mov si, input_string
            call print
            mov si, cmdNotFound
            call print
            call newLine
            jmp commandLoop

    exit:
        cli
        hlt

;- Includes --------------------+
%include "lib/console.asm" ;    |
%include "lib/system.asm"  ;    |
;-------------------------------+

;- Variables ----------------------------------+
user: db "user >> ", 0                    ;    |
input_string: times 20 db 0               ;    |
cmdNotFound: db ": command not found!", 0 ;    |
;----------------------------------------------+

;- Commands Variables ------------------------------+
;                                                   |
C_shutdown:  db "shutdown", 0   ;                   |
CL_shutdown  equ $ - C_shutdown ;                   |
;                                                   |
C_reboot:    db "reboot", 0     ;                   |
CL_reboot    equ $ - C_reboot   ;                   |
;                                                   |
C_clear:     db "clear", 0      ;                   |
CL_clear     equ $ - C_clear    ;                   |
;---------------------------------------------------+

times 512-($-$$) db 0

型
我该怎么办？我需要食物吗？（我用的是ubuntu 22.04.02 LTS）ps。对不起的语法，但我是意大利人，我只有14岁😅