问题在于你硬盘的启动优先级高于光驱。
The problem is that your hard drive has a higher boot priority than your optical drive.
许多现代的BIOS包含了一个启动菜单，在这里你可以动态地修改设备的启动优先级。
Many modern BIOSes include a boot menu from where you can change the priority of your devices on the fly - try pressing the 'Escape' key or F12 when you first see something on the screen.
有时你可能需要更改设备的启动优先级以便能够从光驱启动一个live版的Linxu发行版。
Occasionally you will need to change the device boot priority to be able to boot a live Linux distro from your optical drive.
还可以按优先级、启动日期和到期时间对任务列表排序。
You can also sort the task list by priority, start date, and due time.
还可以按优先级、启动日期和到期时间对该列表排序。
The list can also be sorted by priority, start date, and due time.
因为他不能继续填写该预订表单，并且需要为具有较高优先级的客户启动预订过程，所以他希望稍后继续处理原来的预订表单。
Because he cannot continue filling out that booking form, and needs to start the booking process for the higher priority customer, he wants to be able to continue with the previous one later.
我们现在不去考虑次高优先级服务随后是否应该被启动，而是继续使用目前已绑定到的服务。
Should a higher priority service be started afterwards, we currently don't take into account and continue to use the service we are currently bound to.
常规用户启动的进程优先级一般是0。
如果要以较低的优先级启动作业，则可以尝试清单7中的命令。
If you want to start a job with a lower priority, you can try the command in Listing 7.
可以按任务状态(草案、已启动或已完成)对该列表进行筛选，并且可以按优先级、启动日期或到期时间排序。
The list can be filtered by task state (draft, started or finished), and can be sorted by priority, start date or due time.
如果您正好启动了一个进程，但意识到它应该以不同的优先级运行，那么有一种方法可以在启动之后对其进行更改，即使用renice命令。
If you happen to start a process and realize that it should run at a different priority, there is a way to change it after it has started, using the renice command.
nice命令还可以用来启动具有不同优先级的进程。
The nice command can also be used to start a process with a different priority.
使用我们的集群控制脚本启动heartbeat，这将以与原始机器相同的顺序和优先级启动应用程序。
Start heartbeat using our cluster control script (which will start the applications in the same sequence and priority as the primary).
还有一种可能是在启动时派生一个单独的低优先级的线程，当系统空闲时再去完成初始化，不过这种方法需要特别注意处理好同步。
Another possibility is to fork a separate low-priority thread during startup to perform initialization when the system is idle, although this choice requires more care to handle synchronization.
用户可以让集群代理以低优先级运行，或者在启动屏幕保护程序时运行。
The user can instruct the cluster agent to run in low priority or run whenever the screen saver is activated.
为了演示如何使用nice设置优先级，首先同时在不同的subshell中启动两个count1. sh脚本的副本，但是将其中一个的nice值设置为最大值19。
To demonstrate the use of nice to set priorities, let's start two copies of the count1.sh script in different subshells at the same time, but give one the maximum niceness of 19.
一旦command服务启动了，它将绑定到可用的最高优先级的shortening服务上；或者，如果没有指定优先级，则绑定到拥有最低服务级别的服务上。
Once the command service is started, it will bind to the highest priority shortening service available; or, if that's not specified, the one with the lowest service ranking.
前面已经提到，WebSphereXD通过自动启动和停止应用程序实例来保证高优先级应用程序的响应能力。
As mentioned earlier, WebSphere XD starts and stops application instances automatically to maintain the responsiveness of high-priority applications.
将延迟式启动、较低的CPU和内存优先级与后台磁盘优先级结合后，大大减少了与用户登录间的相互冲突。
The combination of the delayed start, low CPU and memory priority, and background disk priority greatly reduce interference with a user's logon.
将延迟式启动、较低的CPU和内存优先级与后台磁盘优先级结合后，大大减少了与用户登录间的相互冲突。
The combination of the delayed start, low CPU and memory priority, and background disk priority greatly reduce interference with a user's logon.
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