windows 7 和 ubuntu kylin 14.10 双系统启动顺序的修改

[Scofield_fox]

我目前双系统已经完成，也能正常使用，默认是启动 ubuntu ，我想改成 windows 7。
以前GRUB 的时候 修改 /boot/grub/menu.lst 我也成功过
现在是GRUB2 了，我知道应该修改 /boot/grub /grub.cfg。
并且修改完后应该：update-grub。

现在有一个问题，我的GRUB 文件中打开后如下，没有列出windows之类的其他选项，我应该把 windows 选项前面的改成 0 。
但是现在 GRUB 中的文件打开后就如下的内容，压根没有别的选项内容，请问如何解决？

-------------------------------------

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=Ubuntu\ Kylin
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="locale=zh_CN"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

[Scofield_fox]

/etc/default/grub
这个 GRUB文件打开后，感觉内容是不全的一样，其中压根没有别的选项。
所以我也无从谈起，把 windows 选项前面的改为 0

[poloshiao]

默认是启动 ubuntu ，我想改成 windows 7

把下面指令 複製 貼進終端機 執行
1. sudo cat /boot/grub/grub.cfg | grep menuentry
2. sudo cat /boot/grub/grub.cfg | grep 'set default'
把結果直接 選取/複製 貼上來
不必擷圖

[Scofield_fox]

默认是启动 ubuntu ，我想改成 windows 7

把下面指令 複製 貼進終端機 執行
1. sudo cat /boot/grub/grub.cfg | grep menuentry
2. sudo cat /boot/grub/grub.cfg | grep 'set default'
把結果直接 選取/複製 貼上來
不必擷圖

1:
sudo cat /boot/grub/grub.cfg | grep menuentry
[sudo] password for zhou:
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
menuentry_id_option=""
export menuentry_id_option
menuentry 'Ubuntu Kylin GNU/Linux' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-bf55a920-f9ad-473a-bd06-17567995790b' {
submenu 'Ubuntu Kylin GNU/Linux 高级选项' $menuentry_id_option 'gnulinux-advanced-bf55a920-f9ad-473a-bd06-17567995790b' {
menuentry 'Ubuntu Kylin GNU/Linux，Linux 3.16.0-33-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-33-generic-advanced-bf55a920-f9ad-473a-bd06-17567995790b' {
menuentry 'Ubuntu Kylin GNU/Linux, with Linux 3.16.0-33-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-33-generic-recovery-bf55a920-f9ad-473a-bd06-17567995790b' {
menuentry 'Ubuntu Kylin GNU/Linux，Linux 3.16.0-23-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-23-generic-advanced-bf55a920-f9ad-473a-bd06-17567995790b' {
menuentry 'Ubuntu Kylin GNU/Linux, with Linux 3.16.0-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-23-generic-recovery-bf55a920-f9ad-473a-bd06-17567995790b' {
menuentry 'Memory test (memtest86+)' {
menuentry 'Memory test (memtest86+, serial console 115200)' {
menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-A61A3C7D1A3C4C95' {
zhou@zhou-ubuntu:~$



2:
zhou@zhou-ubuntu:~$ sudo cat /boot/grub/grub.cfg | grep 'set default'
set default="${next_entry}"
set default="0"

[Scofield_fox]

问题已经解决，发现不用管 GRUB中文件是全部列出来，直接修改 default 后 update 就可以。

[poloshiao]

/boot/grub/grub.cfg
GRUB_DEFAULT=0

menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-A61A3C7D1A3C4C95' {

直接修改 default 后 update 就可以。

1. /etc/default/grub
# set default="0"
set default='Windows 7 (loader) (on /dev/sda1)'
或
set default="Windows 7 (loader) (on /dev/sda1)"

2. sudo update-grub

3. 檢查結果
/boot/grub/grub.cfg
GRUB_DEFAULT='Windows 7 (loader) (on /dev/sda1)'
或
GRUB_DEFAULT="Windows 7 (loader) (on /dev/sda1)"

4. 開機時 grub 2 開機選單 亮光條 顯示在 "Windows 7 (loader) (on /dev/sda1)"

5. 新版本的 grub 2 可以試試
GRUB_DEFAULT='osprober-chain-A61A3C7D1A3C4C95'