udacity startup

In the previous article, we briefly introduced the surfaceflinger service in the surface mechanism of the Android system. The surfaceflinger service is started in the system process and is responsible for unified management of the device's frame buffer. When the surfaceflinger service is started, two threads are created. One thread is used to monitor console events, and the other thread is used to render the system UI. In this article, we will analyze the surfaceflinger service

View system startup kernel detection hardware information dmesg, kernel dmesg Dmesg is used to display the boot information. The kernel stores the boot information in the ring buffer. You can use dmesg to view the information if you cannot view it at startup. The boot information is also saved in the/var/log directory and named dmesg. Dmesg is used to detect and control the kernel ring buffer. Programs are

I. startup 1: Start startActivity directly) ◆ Declare the Intent object to specify the startup source and startup target, and then let the Intent object start as a parameter of the startActivity method. ◆ Implementation: Intent I = new Intent (MainActivity. this, Act2.class); // start the source and start the target startActivity (I); // directly start

We have discussed how to install Android x86 to virtualbox. Let's take a look at the startup parameter settings. Note: The author also collects all the methods from the Internet and summarizes them based on his own tests. It is easy to set the startup parameters as follows: Select the first item and press"E". Select the first item and press"E". Enter here to write the

From: http://blog.csdn.net/fg8181/article/details/2295777 The embedded system startup architecture is a key technology of embedded systems. Mastering the startup architecture is of great significance for understanding the operating principles of embedded systems. Embedded System BootCodeOperating system operation and applicationProgramThere are two main architectures for loading, one is to direct

In Android, each interface is an Activity. Switching an interface operation is actually an instantiation operation between multiple different activities. In Android, the start mode of the Activity determines the start mode of the Activity. There are four startup modes for the total Android Activity: Standard is the default startup mode. The following example demonstrates the standard Operating Mechanism:

Analysis of Tomcat startup script (Iii.) 3. Common problems encountered with Tomcat startup If all goes well, we can see the very familiar Tomcat window. However, for a variety of reasons, we may encounter some problems, the following is a specific analysis of the reasons why Tomcat can not start normally.3.1 environment variable setting problemIf the JDK is not installed on the machine or the

Android Startup mode: Startup mode: Launchmode plays an important role in the process of multiple activity jumps, and it can decide whether to generate new activity instances, reuse existing activity instances, and share a task with other activity instances. Here is a brief introduction to the concept of Task stack task, which is an object with a stack structure, a task can manage multiple activity, start

About the startup of the database:Oracle's startup is divided into three steps, starting the instance, loading the database, and opening the database. (Users can open the database according to their actual needs)Syntax is startup1:nomount modeSql>Sql> Startup NomountORACLE instance started.Total System Global area 830930944 bytesFixed Size 2257800 bytesVariable S

Tags: shell command grub.conf additional duration WAP Lookup CER enme shortcutLinux boot processObjective:Linux is a free and open source Unix-like operating system. The kernel of the operating system was first released by Linus Torvalds on October 5, 1991. After adding the user-space application, it becomes the Linux operating system. Linux is the most famous example of the development of free software and open source software. Contact Linux time is not short, has been directly using the Linux

There is a ROM in the arm, and the Rom has Code. The Code above is the real startup code of the system, and it has nothing to do with uboot. The following code uses different startup modes:If NAND automatically reads the code of the first 4 K of uboot into the chip and runs the code in the SDRAM, the Code should complete the CPU initialization and ram initialization (initialize the ram as the peripheral.---

With the release of Ubuntu7.10, the ubuntu system is becoming more and more popular, and its ease of use and practicality are also greatly improved. However, when it comes to beautiful appearance, there is still a certain distance between ubuntu and the well-known SUSE system with luxurious and beautiful interfaces. If you don't talk about anything else, the ubuntu screen will be far behind the grub startup screen, but we can dress him up and write mo

Debian6: Set Oracle11gR2 to automatically start upon startup Debian 6 sets Oracle 11g R2 to automatically start upon startup Debian 6 sets Oracle 11g R2 to automatically start upon startup Log On with the root account. Step 1: Modify/etc/oratab Orcl:/home/oracle/product/11.2.0/db_1: Y Where Orcl: sid /Home/oracle/product/11.2.0/db_1: db_home Y: Start Y (yes)