去下作者说的那个虚拟机就行了，然后编译成img格式的文件就可以启动了

U盘我试过，可以启动的，但是老是加载第一扇区失败。
“load error...”
用winhex就可以。

这个小日本都自带了虚拟机还弄什么U盘嘛

可以用U盘。真机测试。感觉不同啊。我的电脑上，按书上的程序，不能操作机子的 鼠标（虚拟机上的行），能操作键盘

可以用各种虚拟机软件哦，比如vmware和virtualbox

用virtualBox吧，完全免费的。

org 0x7c00 ; bios always loads boot sector to 0000:7C00 jmp boot_start %include "load.inc" STACK_BASE equ 0x7C00 ; base address of stack when booting
TRANS_SECT_NR equ 2
SECT_BUF_SIZE equ TRANS_SECT_NR * 512 disk_address_packet: db 0x10 ; [ 0] Packet size in bytes.
db 0 ; [ 1] Reserved, must be 0.
db TRANS_SECT_NR ; [ 2] Nr of blocks to transfer.
db 0 ; [ 3] Reserved, must be 0.
dw 0 ; [ 4] Addr of transfer - Offset
dw SUPER_BLK_SEG ; [ 6] buffer. - Seg
dd 0 ; [ 8] LBA. Low 32-bits.
dd 0 ; [12] LBA. High 32-bits.
err:
mov dh, 3 ; "Error 0 "
call disp_str ; display the string
jmp $ boot_start:
mov ax, cs
mov ds, ax
mov es, ax
mov ss, ax
mov sp, STACK_BASE call clear_screen mov dh, 0 ; "Booting "
call disp_str ; display the string ;; read the super block to SUPER_BLK_SEG::0
mov dword [disk_address_packet + 8], ROOT_BASE + 1
call read_sector
mov ax, SUPER_BLK_SEG
mov fs, ax mov dword [disk_address_packet + 4], LOADER_OFF
mov dword [disk_address_packet + 6], LOADER_SEG ;; get the sector nr of `/' (ROOT_INODE), it'll be stored in eax
mov eax, [fs:SB_ROOT_INODE]
call get_inode ;; read `/' into ex:bx
mov dword [disk_address_packet + 8], eax
call read_sector ;; let's search `/' for the loader
mov si, LoaderFileName
push bx ; <- save
.str_cmp:
;; before comparation:
;; es:bx -> dir_entry @ disk
;; ds:si -> filename we want
add bx, [fs:SB_DIR_ENT_FNAME_OFF]
.1:
lodsb ; ds:si -> al
cmp al, byte [es:bx]
jz .2
jmp .different ; oops
.2: ; so far so good
cmp al, 0 ; both arrive at a '\0', match
jz .found
inc bx ; next char @ disk
jmp .1 ; on and on
.different:
pop bx ; -> restore
add bx, [fs:SB_DIR_ENT_SIZE]
sub ecx, [fs:SB_DIR_ENT_SIZE]
jz .not_found mov dx, SECT_BUF_SIZE
cmp bx, dx
jge .not_found push bx
mov si, LoaderFileName
jmp .str_cmp
.not_found:
mov dh, 2
call disp_str
jmp $
.found:
pop bx
add bx, [fs:SB_DIR_ENT_INODE_OFF]
mov eax, [es:bx] ; eax <- inode nr of loader
call get_inode ; eax <- start sector nr of loader
mov dword [disk_address_packet + 8], eax
load_loader:
call read_sector
cmp ecx, SECT_BUF_SIZE
jl .done
sub ecx, SECT_BUF_SIZE ; bytes_left -= SECT_BUF_SIZE
add word [disk_address_packet + 4], SECT_BUF_SIZE ; transfer buffer
jc err
add dword [disk_address_packet + 8], TRANS_SECT_NR ; LBA
jmp load_loader
.done:
mov dh, 1
call disp_str
jmp LOADER_SEG:LOADER_OFF
jmp $
;============================================================================
;字符串
;----------------------------------------------------------------------------
LoaderFileName db "hdldr.bin", 0 ; LOADER 之文件名
; 为简化代码, 下面每个字符串的长度均为 MessageLength
MessageLength equ 9
BootMessage: db "Booting "; 9字节, 不够则用空格补齐. 序号 0

Message1 db "HD Boot "; 9字节, 不够则用空格补齐. 序号 1
Message2 db "No LOADER"; 9字节, 不够则用空格补齐. 序号 2
Message3 db "Error 0 "; 9字节, 不够则用空格补齐. 序号 3
;============================================================================ clear_screen:
mov ax, 0x600 ; AH = 6, AL = 0
mov bx, 0x700 ; 黑底白字(BL = 0x7)
mov cx, 0 ; 左上角: (0, 0)
mov dx, 0x184f ; 右下角: (80, 50)
int 0x10 ; int 0x10
ret ;----------------------------------------------------------------------------
; 函数名: disp_str
;----------------------------------------------------------------------------
; 作用:
; 显示一个字符串, 函数开始时 dh 中应该是字符串序号(0-based)
disp_str:
mov ax, MessageLength
mul dh
add ax, BootMessage
mov bp, ax ; `.
mov ax, ds ; | ES:BP = 串地址
mov es, ax ; /
mov cx, MessageLength ; CX = 串长度
mov ax, 0x1301 ; AH = 0x13, AL = 0x1
mov bx, 0x7 ; 页号为0(BH = 0) 黑底白字(BL = 0x7)
mov dl, 0
int 0x10 ; int 0x10
ret ;----------------------------------------------------------------------------
; read_sector
;----------------------------------------------------------------------------
; Entry:
; - fields disk_address_packet should have been filled
; before invoking the routine
; Exit:
; - es:bx -> data read
; registers changed:
; - eax, ebx, dl, si, es
read_sector:
xor ebx, ebx mov ah, 0x42
mov dl, 0x80
mov si, disk_address_packet
int 0x13 mov ax, [disk_address_packet + 6]
mov es, ax
mov bx, [disk_address_packet + 4] ret ;----------------------------------------------------------------------------
; get_inode
;----------------------------------------------------------------------------
; Entry:
; - eax : inode nr.
; Exit:
; - eax : sector nr.
; - ecx : the_inode.i_size
; - es:ebx : inodes sector buffer
; registers changed:
; - eax, ebx, ecx, edx
get_inode:
dec eax ; eax <- inode_nr -1
mov bl, [fs:SB_INODE_SIZE]
mul bl ; eax <- (inode_nr - 1) * INODE_SIZE
mov edx, SECT_BUF_SIZE
sub edx, dword [fs:SB_INODE_SIZE]
cmp eax, edx
jg err
push eax mov ebx, [fs:SB_NR_IMAP_SECTS]
mov edx, [fs:SB_NR_SMAP_SECTS]
lea eax, [ebx+edx+ROOT_BASE+2]
mov dword [disk_address_packet + 8], eax
call read_sector pop eax ; [es:ebx+eax] -> the inode mov edx, dword [fs:SB_INODE_ISIZE_OFF]
add edx, ebx
add edx, eax ; [es:edx] -> the_inode.i_size
mov ecx, [es:edx] ; ecx <- the_inode.i_size ; es:[ebx+eax] -> the_inode.i_start_sect
add ax, word [fs:SB_INODE_START_OFF] add bx, ax
mov eax, [es:bx]
add eax, ROOT_BASE ; eax <- the_inode.i_start_sect
ret
times 510-($-$$) db 0 ; 填充剩下的空间，使生成的二进制代码恰好为512字节
dw 0xaa55 ; 结束标志

硬盘启动方法，load.inc在这
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; boot/include/load.inc
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; kernel entry point, corresponding with Makefile
KRNL_ENT_PT_PHY_ADDR equ 0x1000 ;; paging
PAGE_DIR_BASE equ 0x100000
PAGE_TBL_BASE equ 0x101000 ;; where loader is loaded
LOADER_SEG equ 0x9000
LOADER_OFF equ 0x100
LOADER_PHY_ADDR equ LOADER_SEG * 0x10 ;; where kernel file is loaded
KERNEL_FILE_SEG equ 0x7000
KERNEL_FILE_OFF equ 0
KERNEL_FILE_PHY_ADDR equ KERNEL_FILE_SEG * 0x10 ; bytes reserved for kernel.bin
KERNEL_VALID_SPACE equ LOADER_PHY_ADDR - KERNEL_FILE_PHY_ADDR ;; super block will be stored at: [0x700,0x900)
SUPER_BLK_SEG equ 0x70 ;; ATTENTION:
;; Macros below should corresponding with C source.
BOOT_PARAM_ADDR equ 0x900
BOOT_PARAM_MAGIC equ 0xB007 ;; we don't calculate the base sector nr of the root device while loading
;; but define it as a macro for two reasons:
;; 1. it is a constant for any certain system
;; 2. it simplifies boot sector and loader
ROOT_BASE equ 0x4EFF ;; corresponding with include/sys/fs.h
SB_MAGIC_V1 equ 0x111
SB_MAGIC equ 4 * 0
SB_NR_INODES equ 4 * 1
SB_NR_SECTS equ 4 * 2
SB_NR_IMAP_SECTS equ 4 * 3
SB_NR_SMAP_SECTS equ 4 * 4
SB_N_1ST_SECT equ 4 * 5
SB_NR_INODE_SECTS equ 4 * 6
SB_ROOT_INODE equ 4 * 7
SB_INODE_SIZE equ 4 * 8
SB_INODE_ISIZE_OFF equ 4 * 9
SB_INODE_START_OFF equ 4 * 10
SB_DIR_ENT_SIZE equ 4 * 11
SB_DIR_ENT_INODE_OFF equ 4 * 12
SB_DIR_ENT_FNAME_OFF equ 4 * 13

在真机上可以用grub4dos加载软盘镜像启动

Easy,先用老毛桃制作U盘启动盘，OK之后再U盘盘根下建一个名为LMT的文件夹，把映像复制进去。重启，U盘引导，选“启动ISO/IMG文件（LMT目录）”，
进去漆黑的目录，输入映像文件的序号


，回车，搞定

13 楼的方法不错 但是知道原理吗 老毛桃这玩意开源吗?

刚开始看 然后被软驱难倒了。。。。。。。
13楼的方法救了我。。。

我是十三楼，话说，我花50元买了和usb2.0软驱效果还不错