修改ubuntu10.10和XP的首启动

ubuntu10.10 安装后每次开机都是默认第一进入 ubuntu10.10 系统的，对于以 windowsxp 为主的朋友，每次开机都要守在画面切换到 XP 启动，可见十分麻烦，通过下面设置可以让你的 WINDOWSxp 系统为第一启动。

  在 ubuntu9.04 里通过编辑 menu.lst 就可以了，但在 ubuntu10.10 打开结果是空白。因为 ubuntu10.10升 级为 grub2 了，而变为 grub.cfg 文件了。     由于 Ubuntu10.10 开始使用 grub2 来引导系统，新版 grub2 的引导配置文件就不再是 menu.lst 了，而是 /boot/grub/grub.cfg 文件，这与旧版本不同了.

 

修改grub.cfg

sudo gedit /boot/grub/grub.cfg

找到下列代码后剪切：

 

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set bce82e6ae82e235e
    drivemap -s (hd0) ${root}
    chainloader +1
}
### END /etc/grub.d/30_os-prober ###

 

 

 

本人修改后的grub.cfg:

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
  insmod vbe
  insmod vga
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos7)'
search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  load_video
  insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos7)'
search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
set locale_dir=($root)/boot/grub/locale
set lang=zh
insmod gettext
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set bce82e6ae82e235e
    drivemap -s (hd0) ${root}
    chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.35-24-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos7)'
    search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
    linux    /boot/vmlinuz-2.6.35-24-generic-pae root=UUID=899be360-7a56-4c6d-872d-51fd962df65f ro   quiet splash
    initrd    /boot/initrd.img-2.6.35-24-generic-pae
}
menuentry 'Ubuntu, with Linux 2.6.35-24-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos7)'
    search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
    echo    'Loading Linux 2.6.35-24-generic-pae ...'
    linux    /boot/vmlinuz-2.6.35-24-generic-pae root=UUID=899be360-7a56-4c6d-872d-51fd962df65f ro single
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.35-24-generic-pae
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos7)'
    search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos7)'
    search --no-floppy --fs-uuid --set 899be360-7a56-4c6d-872d-51fd962df65f
    linux16    /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###



### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

 

 

 

重新启动看看 WINDOWS XP 为第一启动项了。