更改 GRUB 实现默认启动 win7

一般的 /boot/grub/grub.cfg 文件内容如下：

1:  #

2:  # DO NOT EDIT THIS FILE

3:  #

4:  # It is automatically generated by /usr/sbin/grub-mkconfig using templates

5:  # from /etc/grub.d and settings from /etc/default/grub

6:  #

7:   

8:  ### BEGIN /etc/grub.d/00_header ###

9:  if [ -s $prefix/grubenv ]; then

10:    load_env

11:  fi

12:  set default="4"

13:  if [ ${prev_saved_entry} ]; then

14:    set saved_entry=${prev_saved_entry}

15:    save_env saved_entry

16:    set prev_saved_entry=

17:    save_env prev_saved_entry

18:    set boot_once=true

19:  fi

20:   

21:  function savedefault {

22:    if [ -z ${boot_once} ]; then

23:      saved_entry=${chosen}

24:      save_env saved_entry

25:    fi

26:  }

27:   

28:  function recordfail {

29:    set recordfail=1

30:    if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi

31:  }

32:  insmod ext2

33:  set root='(hd0,9)'

34:  search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

35:  if loadfont /usr/share/grub/unicode.pf2 ; then

36:    set gfxmode=640x480

37:    insmod gfxterm

38:    insmod vbe

39:    if terminal_output gfxterm ; then true ; else

40:      # For backward compatibility with versions of terminal.mod that don't

41:      # understand terminal_output

42:      terminal gfxterm

43:    fi

44:  fi

45:  insmod ext2

46:  set root='(hd0,9)'

47:  search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

48:  set locale_dir=($root)/boot/grub/locale

49:  set lang=zh

50:  insmod gettext

51:  if [ ${recordfail} = 1 ]; then

52:    set timeout=-1

53:  else

54:    set timeout=2

55:  fi

56:  ### END /etc/grub.d/00_header ###

57:   

58:  ### BEGIN /etc/grub.d/05_debian_theme ###

59:  set menu_color_normal=white/black

60:  set menu_color_highlight=black/light-gray

61:  ### END /etc/grub.d/05_debian_theme ###

62:   

63:  ### BEGIN /etc/grub.d/10_linux ###

64:  menuentry 'Ubuntu，Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {

65:      recordfail

66:      insmod ext2

67:      set root='(hd0,9)'

68:      search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

69:      linux    /boot/vmlinuz-2.6.32-21-generic root=UUID=d00d6a7c-6b2d-4def-a7f4-394312384d07 ro   quiet splash

70:      initrd    /boot/initrd.img-2.6.32-21-generic

71:  }

72:  menuentry 'Ubuntu，Linux 2.6.32-21-generic (恢复模式)' --class ubuntu --class gnu-linux --class gnu --class os {

73:      recordfail

74:      insmod ext2

75:      set root='(hd0,9)'

76:      search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

77:      echo    '载入 Linux ...'

78:      linux    /boot/vmlinuz-2.6.32-21-generic root=UUID=d00d6a7c-6b2d-4def-a7f4-394312384d07 ro single

79:      echo    '载入引导虚拟磁盘 ...'

80:      initrd    /boot/initrd.img-2.6.32-21-generic

81:  }

82:  ### END /etc/grub.d/10_linux ###

83:   

84:  ### BEGIN /etc/grub.d/20_memtest86+ ###

85:  menuentry "Memory test (memtest86+)" {

86:      insmod ext2

87:      set root='(hd0,9)'

88:      search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

89:      linux16    /boot/memtest86+.bin

90:  }

91:  menuentry "Memory test (memtest86+, serial console 115200)" {

92:      insmod ext2

93:      set root='(hd0,9)'

94:      search --no-floppy --fs-uuid --set d00d6a7c-6b2d-4def-a7f4-394312384d07

95:      linux16    /boot/memtest86+.bin console=ttyS0,115200n8

96:  }

97:  ### END /etc/grub.d/20_memtest86+ ###

98:   

99:  ### BEGIN /etc/grub.d/30_os-prober ###

100:  menuentry "Windows 7 (loader) (on /dev/sda1)" {

101:      insmod ntfs

102:      set root='(hd0,1)'

103:      search --no-floppy --fs-uuid --set ba52ef7d52ef3caf

104:      chainloader +1

105:  }

106:  menuentry "Windows Vista (loader) (on /dev/sda4)" {

107:      insmod ntfs

108:      set root='(hd0,4)'

109:      search --no-floppy --fs-uuid --set 943af8ff3af8dee4

110:      chainloader +1

111:  }

112:  ### END /etc/grub.d/30_os-prober ###

113:   

114:  ### BEGIN /etc/grub.d/40_custom ###

115:  # This file provides an easy way to add custom menu entries.  Simply type the

116:  # menu entries you want to add after this comment.  Be careful not to change

117:  # the 'exec tail' line above.

118:  ### END /etc/grub.d/40_custom ###

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

修改第12行，使得 set default="X" ，X 的值由默认启动的系统在代码中的序列决定，比方说默认启动 win7 （代码中100行）， win7 在所有列出系统的第 5 位，则 X = 4，则 set default=”4” 即可。

---EOF---

插入代码时候没有 shell 脚本选项，我选择的是 MSH，显示效果很好，不是吗？