GRUB実装のデフォルト起動win 7の変更


一般的な/boot/grub/grub.cfgファイルの内容は以下の通りです.
   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 (    )' --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    '   Linux ...'
  78:      linux    /boot/vmlinuz-2.6.32-21-generic root=UUID=d00d6a7c-6b2d-4def-a7f4-394312384d07 ro single 
  79:      echo    '         ...'
  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 ###

12行目をセットdefault="X"に変更し、Xの値はデフォルトで起動されたシステムのコード内のシーケンスによって決定されます.例えば、デフォルトでwin 7(コード内の100行)、win 7はすべてのリストシステムの5位にある場合、X=4、set default="4"でよい.
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コードを挿入する時shellスクリプトのオプションがなくて、私が選んだのはMSHで、表示の効果はとても良くて、そうではありませんか?