关于"Orange's 一个操作系统实现"实践中Bochs停在Booting无法执行,求助

1100379091

我的操作系统是centos6.4，安装了Bochs，Nasm

在实践《Orange's 一个操作系统实现》第一个例子时
创建了虚拟的软盘Hello.img
并编译了boot.bin并导入了Hello.img
输入bochs -f bochsrc
选择【6】

结果程序执行到
[BIOS ] Booting from 0000:7C00
后就死在那边，不在执行下去了。。。

具体输出如下：
00000000000i[     ] installing nogui module as the Bochs GUI
00000000000i[     ] Bochs x86 Emulator 2.3.5
00000000000i[     ]   Build from CVS snapshot, on September 16, 2007
00000000000i[     ] System configuration
00000000000i[     ]   processors: 1 (cores=1, HT threads=1)
00000000000i[     ]   A20 line support: yes
00000000000i[     ]   APIC support: no
00000000000i[     ] CPU configuration
00000000000i[     ]   level: 5
00000000000i[     ]   TLB enabled: yes
00000000000i[     ]   SMP support: no
00000000000i[     ]   FPU support: yes
00000000000i[     ]   MMX support: yes
00000000000i[     ]   SSE support: no
00000000000i[     ]   CLFLUSH support: no
00000000000i[     ]   v8086 mode support: yes
00000000000i[     ]   VME support: yes
00000000000i[     ]   3dnow! support: no
00000000000i[     ]   PAE support: no
00000000000i[     ]   PGE support: no
00000000000i[     ]   PSE support: yes
00000000000i[     ]   x86-64 support: no
00000000000i[     ]   SEP support: no
00000000000i[     ] Optimization configuration
00000000000i[     ]   Guest2HostTLB support: no
00000000000i[     ]   RepeatSpeedups support: no
00000000000i[     ]   Icache support: no
00000000000i[     ]   Host Asm support: yes
00000000000i[     ]   Fast function calls: no
00000000000i[     ] Devices configuration
00000000000i[     ]   NE2000 support: no
00000000000i[     ]   PCI support: no
00000000000i[     ]   SB16 support: no
00000000000i[     ]   USB support: no
00000000000i[     ]   VGA extension support: vbe
00000000000i[MEM0 ] allocated memory at 0xb54d3008. after alignment, vector=0xb54d4000
00000000000i[MEM0 ] 32.00MB
00000000000i[MEM0 ] rom at 0xfffe0000/131072 ('/usr/local/share/bochs/BIOS-bochs-latest')
00000000000i[MEM0 ] rom at 0xc0000/38400 ('/usr/local/share/bochs/VGABIOS-lgpl-latest')
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Sat Oct  3 00:02:48 2015 (time0=144380176
00000000000i[DMA  ] channel 4 used by cascade
00000000000i[DMA  ] channel 2 used by Floppy Drive
00000000000i[FDD  ] tried to open 'hello.img' read/write: Permission denied
00000000000i[FDD  ] fd0: 'hello.img' ro=1, h=2,t=80,spt=18
00000000000i[MEM0 ] Register memory access handlers: 000a0000-000bffff
00000000000i[VGA  ] interval=40000
00000000000i[MEM0 ] Register memory access handlers: e0000000-e07fffff
00000000000i[VGA  ] VBE Bochs Display Extension Enabled
00000000000i[     ] init_mem of 'harddrv' plugin device by virtual method
00000000000i[     ] init_mem of 'keyboard' plugin device by virtual method
00000000000i[     ] init_mem of 'serial' plugin device by virtual method
00000000000i[     ] init_mem of 'parallel' plugin device by virtual method
00000000000i[     ] init_mem of 'extfpuirq' plugin device by virtual method
00000000000i[     ] init_mem of 'speaker' plugin device by virtual method
00000000000i[     ] init_dev of 'harddrv' plugin device by virtual method
00000000000i[HD   ] Using boot sequence floppy, none, none
00000000000i[HD   ] Floppy boot signature check is enabled
00000000000i[     ] init_dev of 'keyboard' plugin device by virtual method
00000000000i[KBD  ] will paste characters every 1000 keyboard ticks
00000000000i[     ] init_dev of 'serial' plugin device by virtual method
00000000000i[SER  ] com1 at 0x03f8 irq 4
00000000000i[     ] init_dev of 'parallel' plugin device by virtual method
00000000000i[PAR  ] parallel port 1 at 0x0378 irq 7
00000000000i[     ] init_dev of 'extfpuirq' plugin device by virtual method
00000000000i[     ] init_dev of 'speaker' plugin device by virtual method
00000000000i[SPEAK] Failed to open /dev/console: Permission denied
00000000000i[SPEAK] Deactivating beep on console
00000000000i[     ] register state of 'harddrv' plugin device by virtual method
00000000000i[     ] register state of 'keyboard' plugin device by virtual method
00000000000i[     ] register state of 'serial' plugin device by virtual method
00000000000i[     ] register state of 'parallel' plugin device by virtual method
00000000000i[     ] register state of 'extfpuirq' plugin device by virtual method
00000000000i[     ] register state of 'speaker' plugin device by virtual method
00000000000i[SYS  ] bx_pc_system_c::Reset(HARDWARE) called
00000000000i[     ] reset of 'harddrv' plugin device by virtual method
00000000000i[     ] reset of 'keyboard' plugin device by virtual method
00000000000i[     ] reset of 'serial' plugin device by virtual method
00000000000i[     ] reset of 'parallel' plugin device by virtual method
00000000000i[     ] reset of 'extfpuirq' plugin device by virtual method
00000000000i[     ] reset of 'speaker' plugin device by virtual method
00000003442i[BIOS ] $Revision: 1.183 $ $Date: 2007/09/10 20:00:29 $
00000317569i[KBD  ] reset-disable command received
00000336179i[BIOS ] Starting rombios32
00000337002i[BIOS ] ram_size=0x02000000
00000337611i[BIOS ] Found 1 cpu(s)
00000624884i[VBIOS] VGABios $Id: vgabios.c,v 1.66 2006/07/10 07:47:51 vruppert Exp $
00000624955i[VGA  ] VBE known Display Interface b0c0
00000624987i[VGA  ] VBE known Display Interface b0c4
00000627912i[VBIOS] VBE Bios $Id: vbe.c,v 1.58 2006/08/19 09:39:43 vruppert Exp $
00001072160i[BIOS ] Booting from 0000:7C00
（程序死在这里，没有后续输出）

配置如下
###############################################################
# Configuration file for Bochs
###############################################################
# how much memory the emulated machine will have
megs: 32
# filename of ROM images
romimage: file=/usr/local/share/bochs/BIOS-bochs-latest
vgaromimage: file=/usr/local/share/bochs/VGABIOS-lgpl-latest

（没有找到vgabios.bin，网上查到用VGABIOS-lgpl-latest替代，不知道是否这个原因引起）

# what disk images will be used
floppya: 1_44=hello.img, status=inserted
# choose the boot disk.
boot: floppy
# where do we send log messages?
log: bochsout.log
# disable the mouse
mouse: enabled=0
# enable key mapping, using US layout as default.
keyboard_mapping: enabled=1, map=/usr/share/bochs/keymaps/x11-pc-us.map

求助一下，是什么问题导致的，如何解决？