> 我手边没有可以重启的linux。不过从ubuntu上的简介来看，应该是这样没有错。
>
http://ubuntuforums.org/showthread.php?t=1195275
>
> GRUB_HIDDEN_TIMEOUT=0
>
> The menu will be hidden unless a # symbol is present at the beginning of
> this line. ( # GRUB_HIDDEN_TIMEOUT=0 )
> The default setting initially depends on the presence of other operating
> systems.
>
> Another OS Detected: The menu will be displayed. ( The line will begin with
> a # symbol. )
> No other OS Detected: The menu will be hidden.
>
> For integers greater than 0, the system will pause, but not display the
> menu, for the entered number of seconds.
> 0 The menu will not be displayed. There will be no delay. When this entry is
> set to 0:
>
> The user may force displaying the menu as the computer boots by holding down
> the SHIFT key.
> During boot, the system will check the SHIFT key status. If it cannot
> determine the key status, a short delay will enable the user to display the
> menu by pressing the ESC key.
>
> If enabled, the splash screen designated in 05_debian_theme will be
> displayed. This setting hides the menu only.
>
> GRUB_HIDDEN_TIMEOUT_QUIET=true
>
> true - No countdown is displayed. The screen will be blank.
> false - A counter will display on a blank screen for the duration of the
> GRUB_HIDDEN_TIMEOUT value.
>
> 当GRUB_HIDDEN_TIMEOUT=0时，菜单不会显示，也不会有延迟，用户可以按下shift键(grub-legacy中是Esc)强制显示菜单，如果系统在启动过程中不能确定shift键的状态，会有一个短暂的延迟让用户按下Esc键来显示菜单。
>
> GRUB_HIDDEN_TIMEOUT_QUIET=true是不显示倒计时。
>
> 你修改了文件之后执行update-grub命令的输出是否正常？有没有报错信息？执行命令之后的/boot/grub/grub.cfg文件和之前有没有区别？启动的时候是否按下了Shift键或者Esc键？
>
> 2009/11/23 窦peiqi <
doupeiqi@gmail.com>
>>
>> GRUB_DEFAULT=0
>> GRUB_HIDDEN_TIMEOUT=0
>> GRUB_HIDDEN_TIMEOUT_QUIET=true
>> GRUB_TIMEOUT=3
>> GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
>> GRUB_CMDLINE_LINUX_DEFAULT="quiet"
>> 这是我的/etc/default/grub 文件内容，update-grub后不管用。
>>
>>
>> 2009/11/23 Alyex Ye <
alyex.ye@
gmail.com>
>>>
>>>
>>> 这个版本的变化还是很大的，在Grub2中是不可以直接编辑/boot/grub/grub.cfg的，否则在下次升级或者其他变化的时候，update-grub命令（手动或自动）会将其覆盖。
>>>
>>> 正确的方法是修改/etc/default/grub文件，其中有2个参数
>>> GRUB_HIDDEN_TIMEOUT=0
>>> GRUB_HIDDEN_TIMEOUT_QUIET=true
>>> 可以隐藏倒计时
>>>
>>> 修改完成后sudo update-grub即可。
>>>
>>> 2009/11/21 ganquan <
imganquan@gmail.com>
>>>>
>>>> sorry,怪我太粗心，没看到是grub2。
>>>> 我不清楚grub2的配置，抱歉。
>>>> On Sat, Nov 21, 2009 at 04:07:30PM +0800, 窦培琪 wrote:
>>>> > 我想要的效果是用像老版grub那样的命令：hiddenmenu，这个命令在grub2中没有了。
>>>> > grub2默认配置文件是：/boot/grub/grub.cfg。
>>>> > 我电脑里还装有win。
>>>> >
>>>> > 2009/11/21 ganquan <
imganquan@gmail.com>
>>>> >
>>>> > 去/boot/grub/menu.list里面把你不想要的东西注释掉就可以了。
>>>> > 或者直接把timeout设置为0，这样就不用显示菜单，直接启动第一个启动项了
>>>> > On Sat, Nov 21, 2009 at 03:59:56PM +0800, 窦培琪 wrote:
>>>> > > 如题。
>>>> > > 谢谢
>>>> >
>>>> > --
>>>> > Hi! I'm Ganquan.
>>>> >
http://imganquan.org
>>>> >
>>>> >
>>>> > --
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>>>> >
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>>>> > with a subject of "unsubscribe". Trouble? Contact
>>>> >
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>>>> >
>>>> >
>>>> >
>>>>
>>>> --
>>>> Hi! I'm Ganquan.
>>>>
http://imganquan.org
>>>>
>>>>
>>>> --
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debian-chinese-gb-REQUEST@lists.debian.org
>>>> with a subject of "unsubscribe". Trouble? Contact
>>>>
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>>>>
>>>
>>>
>>>
>>> --
>>> Best Regards,
>>> Alex
>>
>
>
>
> --
> Best Regards,
> Alex
>