作为Ubuntu新手，记录下自己的傻逼历程

今天操作系统装Bochs，老师的那本书中提到了bochs的debug，于是自己也想尝试一下，可是总是不会对啊

错误是这样的：

========================================================================
Bochs x86 Emulator 2.4.6
Build from CVS snapshot, on February 22, 2011
Compiled at Nov 11 2011, 09:31:18
========================================================================
00000000000i[     ] LTDL_LIBRARY_PATH not set. using compile time default '/usr/lib/bochs/plugins'
00000000000i[     ] BXSHARE not set. using compile time default '/usr/share/bochs'
00000000000e[     ] Switching off quick start, because no configuration file was found.
------------------------------
Bochs Configuration: Main Menu
------------------------------

This is the Bochs Configuration Interface, where you can describe the
machine that you want to simulate.  Bochs has already searched for a
configuration file (typically called bochsrc.txt) and loaded it if it
could be found.  When you are satisfied with the configuration, go
ahead and start the simulation.

You can also start bochs with the -q option to skip these menus.

1. Restore factory default configuration
2. Read options from...
3. Edit options
4. Save options to...
5. Restore the Bochs state from...
6. Begin simulation
7. Quit now

Please choose one: [2] 6
00000000000i[     ] lt_dlhandle is 0x2474980
00000000000i[PLGIN] loaded plugin libbx_x.so
00000000000i[     ] installing x module as the Bochs GUI
00000000000i[     ] Bochs x86 Emulator 2.4.6
00000000000i[     ]   Build from CVS snapshot, on February 22, 2011
00000000000i[     ] Compiled at Nov 11 2011, 09:31:18
00000000000i[     ] System configuration
00000000000i[     ]   processors: 1 (cores=1, HT threads=1)
00000000000i[     ]   A20 line support: yes
00000000000i[     ] CPU configuration
00000000000i[     ]   level: 6
00000000000i[     ]   SMP support: no
00000000000i[     ]   APIC support: yes
00000000000i[     ]   FPU support: yes
00000000000i[     ]   MMX support: yes
00000000000i[     ]   3dnow! support: no
00000000000i[     ]   SEP support: yes
00000000000i[     ]   SSE support: sse2
00000000000i[     ]   XSAVE support: no
00000000000i[     ]   AES support: no
00000000000i[     ]   MOVBE support: no
00000000000i[     ]   x86-64 support: yes
00000000000i[     ]   1G paging support: no
00000000000i[     ]   VMX support: no
00000000000i[     ] Optimization configuration
00000000000i[     ]   RepeatSpeedups support: yes
00000000000i[     ]   Trace cache support: yes
00000000000i[     ]   Fast function calls: yes
00000000000i[     ] Devices configuration
00000000000i[     ]   ACPI support: yes
00000000000i[     ]   NE2000 support: yes
00000000000i[     ]   PCI support: yes, enabled=yes
00000000000i[     ]   SB16 support: yes
00000000000i[     ]   USB support: yes
00000000000i[     ]   VGA extension support: vbe
00000000000i[MEM0 ] allocated memory at 0x7f55c9baa010. after alignment, vector=0x7f55c9bab000
00000000000i[MEM0 ] 32.00MB
00000000000i[MEM0 ] mem block size = 0x00100000, blocks=32
00000000000i[MEM0 ] rom at 0xfffe0000/131072 ('/usr/share/bochs/BIOS-bochs-latest')
00000000000i[MEM0 ] rom at 0xc0000/40448 ('/usr/share/bochs/VGABIOS-lgpl-latest')
00000000000i[     ] lt_dlhandle is 0x24cf530
00000000000i[PLGIN] loaded plugin libbx_cmos.so
00000000000i[     ] lt_dlhandle is 0x24cff50
00000000000i[PLGIN] loaded plugin libbx_dma.so
00000000000i[     ] lt_dlhandle is 0x24d09b0
00000000000i[PLGIN] loaded plugin libbx_pic.so
00000000000i[     ] lt_dlhandle is 0x24d11f0
00000000000i[PLGIN] loaded plugin libbx_pit.so
00000000000i[     ] lt_dlhandle is 0x24d1b60
00000000000i[PLGIN] loaded plugin libbx_vga.so
00000000000i[     ] lt_dlhandle is 0x24d2290
00000000000i[PLGIN] loaded plugin libbx_hdimage.so
00000000000i[     ] lt_dlhandle is 0x24d2b50
00000000000i[PLGIN] loaded plugin libbx_floppy.so
00000000000i[     ] lt_dlhandle is 0x24d3740
00000000000i[PLGIN] loaded plugin libbx_soundmod.so
00000000000i[     ] lt_dlhandle is 0x24d4d90
00000000000i[PLGIN] loaded plugin libbx_pci.so
00000000000i[     ] lt_dlhandle is 0x24d59c0
00000000000i[PLGIN] loaded plugin libbx_pci2isa.so
00000000000i[     ] lt_dlhandle is 0x24d62e0
00000000000i[PLGIN] loaded plugin libbx_usb_common.so
00000000000i[     ] lt_dlhandle is 0x24d6b20
00000000000i[PLGIN] loaded plugin libbx_unmapped.so
00000000000i[     ] lt_dlhandle is 0x24d7390
00000000000i[PLGIN] loaded plugin libbx_biosdev.so
00000000000i[     ] lt_dlhandle is 0x24d7ca0
00000000000i[PLGIN] loaded plugin libbx_speaker.so
00000000000i[     ] lt_dlhandle is 0x24d84d0
00000000000i[PLGIN] loaded plugin libbx_extfpuirq.so
00000000000i[     ] lt_dlhandle is 0x24d8d40
00000000000i[PLGIN] loaded plugin libbx_gameport.so
00000000000i[     ] lt_dlhandle is 0x24d96b0
00000000000i[PLGIN] loaded plugin libbx_pci_ide.so
00000000000i[     ] lt_dlhandle is 0x24da080
00000000000i[PLGIN] loaded plugin libbx_acpi.so
00000000000i[     ] lt_dlhandle is 0x24da9c0
00000000000i[PLGIN] loaded plugin libbx_ioapic.so
00000000000i[     ] lt_dlhandle is 0x24db370
00000000000i[PLGIN] loaded plugin libbx_keyboard.so
00000000000i[     ] lt_dlhandle is 0x24dbb70
00000000000i[PLGIN] loaded plugin libbx_harddrv.so
00000000000i[     ] lt_dlhandle is 0x24edc40
00000000000i[PLGIN] loaded plugin libbx_serial.so
00000000000i[     ] lt_dlhandle is 0x24eeab0
00000000000i[PLGIN] loaded plugin libbx_parallel.so
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Wed Mar 20 02:22:26 2013 (time0=1363717346)
00000000000i[DMA  ] channel 4 used by cascade
00000000000i[DMA  ] channel 2 used by Floppy Drive
00000000000i[PCI  ] 440FX Host bridge present at device 0, function 0
00000000000i[PCI  ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
00000000000i[VGA  ] interval=50000
00000000000i[MEM0 ] Register memory access handlers: 0x00000000000a0000 - 0x00000000000bffff
00000000000i[XGUI ] test_alloc_colors: 16 colors available out of 16 colors tried
00000000000i[XGUI ] font 8 wide x 16 high, display depth = 24
bochs-bin: symbol lookup error: /usr/lib/bochs/plugins/libbx_x.so: undefined symbol: XpmCreatePixmapFromData

总是有

bochs-bin: symbol lookup error: /usr/lib/bochs/plugins/libbx_x.so: undefined symbol: XpmCreatePixmapFromData

的错误，一看到error，程序员难免会发慌，于是google下，说是配置文件的问题。

作为一个菜鸟级人物，我就不懂了，配置文件在哪里啊？在里面加display_library: sdl ？？

不过看助教的ppt上见过这玩意儿，想起来是有个bochsrc文件，把它放到桌面上，就能了，就没有error了

========================================================================
Bochs x86 Emulator 2.4.6
Build from CVS snapshot, on February 22, 2011
Compiled at Nov 11 2011, 09:31:18
========================================================================
00000000000i[     ] LTDL_LIBRARY_PATH not set. using compile time default '/usr/lib/bochs/plugins'
00000000000i[     ] BXSHARE not set. using compile time default '/usr/share/bochs'
00000000000i[     ] reading configuration from bochsrc
00000000000i[     ] lt_dlhandle is 0x1f6aa10
00000000000i[PLGIN] loaded plugin libbx_sdl.so
00000000000i[     ] installing sdl module as the Bochs GUI
00000000000i[     ] Bochs x86 Emulator 2.4.6
00000000000i[     ]   Build from CVS snapshot, on February 22, 2011
00000000000i[     ] Compiled at Nov 11 2011, 09:31:18
00000000000i[     ] System configuration
00000000000i[     ]   processors: 1 (cores=1, HT threads=1)
00000000000i[     ]   A20 line support: yes
00000000000i[     ] CPU configuration
00000000000i[     ]   level: 6
00000000000i[     ]   SMP support: no
00000000000i[     ]   APIC support: yes
00000000000i[     ]   FPU support: yes
00000000000i[     ]   MMX support: yes
00000000000i[     ]   3dnow! support: no
00000000000i[     ]   SEP support: yes
00000000000i[     ]   SSE support: sse2
00000000000i[     ]   XSAVE support: no
00000000000i[     ]   AES support: no
00000000000i[     ]   MOVBE support: no
00000000000i[     ]   x86-64 support: yes
00000000000i[     ]   1G paging support: no
00000000000i[     ]   VMX support: no
00000000000i[     ] Optimization configuration
00000000000i[     ]   RepeatSpeedups support: yes
00000000000i[     ]   Trace cache support: yes
00000000000i[     ]   Fast function calls: yes
00000000000i[     ] Devices configuration
00000000000i[     ]   ACPI support: yes
00000000000i[     ]   NE2000 support: yes
00000000000i[     ]   PCI support: yes, enabled=yes
00000000000i[     ]   SB16 support: yes
00000000000i[     ]   USB support: yes
00000000000i[     ]   VGA extension support: vbe
00000000000i[MEM0 ] allocated memory at 0x7f942d4d2010. after alignment, vector=0x7f942d4d3000
00000000000i[MEM0 ] 32.00MB
00000000000i[MEM0 ] mem block size = 0x00100000, blocks=32
00000000000i[MEM0 ] rom at 0xfffe0000/131072 ('/usr/share/bochs/BIOS-bochs-latest')
00000000000i[MEM0 ] rom at 0xc0000/40448 ('/usr/share/bochs/VGABIOS-lgpl-latest')
00000000000i[     ] lt_dlhandle is 0x1fcd690
00000000000i[PLGIN] loaded plugin libbx_cmos.so
00000000000i[     ] lt_dlhandle is 0x1fce0b0
00000000000i[PLGIN] loaded plugin libbx_dma.so
00000000000i[     ] lt_dlhandle is 0x1fceb10
00000000000i[PLGIN] loaded plugin libbx_pic.so
00000000000i[     ] lt_dlhandle is 0x1fcf350
00000000000i[PLGIN] loaded plugin libbx_pit.so
00000000000i[     ] lt_dlhandle is 0x1fcfcc0
00000000000i[PLGIN] loaded plugin libbx_vga.so
00000000000i[     ] lt_dlhandle is 0x1fd03f0
00000000000i[PLGIN] loaded plugin libbx_hdimage.so
00000000000i[     ] lt_dlhandle is 0x1fd0cd0
00000000000i[PLGIN] loaded plugin libbx_floppy.so
00000000000i[     ] lt_dlhandle is 0x1fd1890
00000000000i[PLGIN] loaded plugin libbx_soundmod.so
00000000000i[     ] lt_dlhandle is 0x1fd2110
00000000000i[PLGIN] loaded plugin libbx_pci.so
0000000
cdb8
0000i[     ] lt_dlhandle is 0x1fd2cd0
00000000000i[PLGIN] loaded plugin libbx_pci2isa.so
00000000000i[     ] lt_dlhandle is 0x1fd3610
00000000000i[PLGIN] loaded plugin libbx_usb_common.so
00000000000i[     ] lt_dlhandle is 0x1fd3e70
00000000000i[PLGIN] loaded plugin libbx_unmapped.so
00000000000i[     ] lt_dlhandle is 0x1fd46e0
00000000000i[PLGIN] loaded plugin libbx_biosdev.so
00000000000i[     ] lt_dlhandle is 0x1fd50b0
00000000000i[PLGIN] loaded plugin libbx_speaker.so
00000000000i[     ] lt_dlhandle is 0x1fd5840
00000000000i[PLGIN] loaded plugin libbx_extfpuirq.so
00000000000i[     ] lt_dlhandle is 0x1fd60b0
00000000000i[PLGIN] loaded plugin libbx_gameport.so
00000000000i[     ] lt_dlhandle is 0x1fd6a20
00000000000i[PLGIN] loaded plugin libbx_pci_ide.so
00000000000i[     ] lt_dlhandle is 0x1fd73f0
00000000000i[PLGIN] loaded plugin libbx_acpi.so
00000000000i[     ] lt_dlhandle is 0x1fd7d30
00000000000i[PLGIN] loaded plugin libbx_ioapic.so
00000000000i[     ] lt_dlhandle is 0x1fd86e0
00000000000i[PLGIN] loaded plugin libbx_keyboard.so
00000000000i[     ] lt_dlhandle is 0x1fd8ee0
00000000000i[PLGIN] loaded plugin libbx_harddrv.so
00000000000i[     ] lt_dlhandle is 0x1feafb0
00000000000i[PLGIN] loaded plugin libbx_serial.so
00000000000i[     ] lt_dlhandle is 0x1febe20
00000000000i[PLGIN] loaded plugin libbx_parallel.so
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Wed Mar 20 02:27:57 2013 (time0=1363717677)
00000000000i[DMA  ] channel 4 used by cascade
00000000000i[DMA  ] channel 2 used by Floppy Drive
00000000000i[FDD  ] tried to open 'a.img' read/write: 没有那个文件或目录
00000000000i[FDD  ] tried to open 'a.img' read only: 没有那个文件或目录
00000000000i[PCI  ] 440FX Host bridge present at device 0, function 0
00000000000i[PCI  ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
00000000000i[VGA  ] interval=50000
00000000000i[MEM0 ] Register memory access handlers: 0x00000000000a0000 - 0x00000000000bffff
00000000000i[MEM0 ] Register memory access handlers: 0x00000000e0000000 - 0x00000000e0ffffff
00000000000i[VGA  ] VBE Bochs Display Extension Enabled
00000000000i[PLGIN] init_dev of 'unmapped' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'biosdev' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'speaker' plugin device by virtual method
00000000000i[SPEAK] Failed to open /dev/console: 资源暂时不可用
00000000000i[SPEAK] Deactivating beep on console
00000000000i[PLGIN] init_dev of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'gameport' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'pci_ide' plugin device by virtual method
00000000000i[PCI  ] PIIX3 PCI IDE controller present at device 1, function 1
00000000000i[PLGIN] init_dev of 'acpi' plugin device by virtual method
00000000000i[PCI  ] ACPI Controller present at device 1, function 3
00000000000i[PLGIN] init_dev of 'ioapic' plugin device by virtual method
00000000000i[IOAP ] initializing I/O APIC
00000000000i[MEM0 ] Register memory access handlers: 0x00000000fec00000 - 0x00000000fec00fff
00000000000i[PLGIN] init_dev of 'keyboard' plugin device by virtual method
00000000000i[KBD  ] will paste characters every 1000 keyboard ticks
00000000000i[PLGIN] 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[PLGIN] init_dev of 'serial' plugin device by virtual method
00000000000i[SER  ] com1 at 0x03f8 irq 4
00000000000i[PLGIN] init_dev of 'parallel' plugin device by virtual method
00000000000i[PAR  ] parallel port 1 at 0x0378 irq 7
00000000000i[PLGIN] register state of 'unmapped' plugin device by virtual method
00000000000i[PLGIN] register state of 'biosdev' plugin device by virtual method
00000000000i[PLGIN] register state of 'speaker' plugin device by virtual method
00000000000i[PLGIN] register state of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] register state of 'gameport' plugin device by virtual method
00000000000i[PLGIN] register state of 'pci_ide' plugin device by virtual method
00000000000i[PLGIN] register state of 'acpi' plugin device by virtual method
00000000000i[PLGIN] register state of 'ioapic' plugin device by virtual method
00000000000i[PLGIN] register state of 'keyboard' plugin device by virtual method
00000000000i[PLGIN] register state of 'harddrv' plugin device by virtual method
00000000000i[PLGIN] register state of 'serial' plugin device by virtual method
00000000000i[PLGIN] register state of 'parallel' plugin device by virtual method
00000000000i[SYS  ] bx_pc_system_c::Reset(HARDWARE) called
00000000000i[CPU0 ] cpu hardware reset
00000000000i[APIC0] allocate APIC id=0 (MMIO enabled) to 0x00000000fee00000
00000000000i[CPU0 ] CPUID[0x00000000]: 00000003 756e6547 6c65746e 49656e69
00000000000i[CPU0 ] CPUID[0x00000001]: 00000f23 00000800 00002000 07cbfbff
00000000000i[CPU0 ] CPUID[0x00000002]: 00410601 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x00000003]: 00000000 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x00000004]: 00000000 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x00000007]: 00000000 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x80000000]: 80000008 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x80000001]: 00000000 00000000 00000001 2a100800
00000000000i[CPU0 ] CPUID[0x80000002]: 20202020 20202020 20202020 6e492020
00000000000i[CPU0 ] CPUID[0x80000003]: 286c6574 50202952 69746e65 52286d75
00000000000i[CPU0 ] CPUID[0x80000004]: 20342029 20555043 20202020 00202020
00000000000i[CPU0 ] CPUID[0x80000006]: 00000000 42004200 02008140 00000000
00000000000i[CPU0 ] CPUID[0x80000007]: 00000000 00000000 00000000 00000000
00000000000i[CPU0 ] CPUID[0x80000008]: 00003028 00000000 00000000 00000000
00000000000i[PLGIN] reset of 'unmapped' plugin device by virtual method
00000000000i[PLGIN] reset of 'biosdev' plugin device by virtual method
00000000000i[PLGIN] reset of 'speaker' plugin device by virtual method
00000000000i[PLGIN] reset of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] reset of 'gameport' plugin device by virtual method
00000000000i[PLGIN] reset of 'pci_ide' plugin device by virtual method
00000000000i[PLGIN] reset of 'acpi' plugin device by virtual method
00000000000i[PLGIN] reset of 'ioapic' plugin device by virtual method
00000000000i[PLGIN] reset of 'keyboard' plugin device by virtual method
00000000000i[PLGIN] reset of 'harddrv' plugin device by virtual method
00000000000i[PLGIN] reset of 'serial' plugin device by virtual method
00000000000i[PLGIN] reset of 'parallel' plugin device by virtual method
00000003305i[BIOS ] $Revision: 1.257 $ $Date: 2011/01/26 09:52:02 $
00000318042i[KBD  ] reset-disable command received
00000442356i[VBIOS] VGABios $Id$
00000442427i[VGA  ] VBE known Display Interface b0c0
00000442459i[VGA  ] VBE known Display Interface b0c5
00000443128i[VBIOS] VBE Bios $Id$
00000760600i[BIOS ] Starting rombios32
00000761033i[BIOS ] Shutdown flag 0
00000761628i[BIOS ] ram_size=0x02000000
00000762048i[BIOS ] ram_end=32MB
00000802574i[BIOS ] Found 1 cpu(s)
00000818429i[BIOS ] bios_table_addr: 0x000fb928 end=0x000fcc00
00000818526i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
00001146221i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
00001474149i[P2I  ] PCI IRQ routing: PIRQA# set to 0x0b
00001474168i[P2I  ] PCI IRQ routing: PIRQB# set to 0x09
00001474187i[P2I  ] PCI IRQ routing: PIRQC# set to 0x0b
00001474206i[P2I  ] PCI IRQ routing: PIRQD# set to 0x09
00001474216i[P2I  ] write: ELCR2 = 0x0a
00001474982i[BIOS ] PIIX3/PIIX4 init: elcr=00 0a
00001482642i[BIOS ] PCI: bus=0 devfn=0x00: vendor_id=0x8086 device_id=0x1237 class=0x0600
00001484907i[BIOS ] PCI: bus=0 devfn=0x08: vendor_id=0x8086 device_id=0x7000 class=0x0601
00001487011i[BIOS ] PCI: bus=0 devfn=0x09: vendor_id=0x8086 device_id=0x7010 class=0x0101
00001487243i[PIDE ] new BM-DMA address: 0xc000
00001487858i[BIOS ] region 4: 0x0000c000
00001489874i[BIOS ] PCI: bus=0 devfn=0x0b: vendor_id=0x8086 device_id=0x7113 class=0x0680
00001490107i[ACPI ] new irq line = 11
00001490119i[ACPI ] new irq line = 9
00001490148i[ACPI ] new PM base address: 0xb000
00001490162i[ACPI ] new SM base address: 0xb100
00001490190i[PCI  ] setting SMRAM control register to 0x4a
00001654281i[CPU0 ] Enter to System Management Mode
00001654291i[CPU0 ] RSM: Resuming from System Management Mode
00001818309i[PCI  ] setting SMRAM control register to 0x0a
00001827062i[BIOS ] MP table addr=0x000fba00 MPC table addr=0x000fb930 size=0xd0
00001828801i[BIOS ] SMBIOS table addr=0x000fba10
00001831952i[BIOS ] Firmware waking vector 0x1ff00cc
00001836891i[BIOS ] ACPI tables: RSDP addr=0x000fbb30 ACPI DATA addr=0x01ff0000 size=0x1f18
00001836927i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
00001837655i[BIOS ] bios_table_cur_addr: 0x000fbb54
00013994287i[FDD  ] attempt to read/write sector 1 with media not present
00021976005i[FDD  ] controller reset in software
00022030980p[BIOS ] >>PANIC<< No bootable device.
========================================================================
Event type: PANIC
Device: [BIOS ]
Message: No bootable device.

A PANIC has occurred.  Do you want to:
cont       - continue execution
alwayscont - continue execution, and don't ask again.
This affects only PANIC events from device [BIOS ]
die        - stop execution now
abort      - dump core
debug      - hand control to gdb

然后成功的进入了debug阶段，虽然这样没有boot.bin和a.img就这样进入了debug阶段

No bootable device.

指得就是没有软盘吧。。。



把boot.bin和a.img和放在同一文件夹后就能正常运行啦。。。

不过为什么没有PANIC就不会出现debug的选项呢？真的很奇怪诶，一般随便那种语言即使写一个helloworld也是能debug的啊？

对于Ubuntu还是有不能解决的问题啊，关于像书上那样一步一步的制造软盘还是不会啊，只会编写文件，有待下一次blog。