lock bootloader

operating system. We want to upgrade the application. This is common for Windows or Linux, and if there is no bootloader, then we have to find a burn-and-write tool that burns a computer or CPU, in fact, it's not an easy thing for a manufacturer to do. But the Bootloaer is very convenient, we just need to put the upgraded operating system into the "hard disk" or a location in the Nandflash, and then restart the power outage,

Last night, I heard from my roommates about how to compile the Linux kernel. As a computer graduate, I don't know much about it. It's so depressing. After much understanding, we finally have a vague concept. In Linux, the kernel image is usually stored in Boot/grub or boot/Lilo. After a roommate's explanation, I have a rough idea about this image. But who will read this grub. conf? You do not know. Come and think about it in bed, bootloader! This must

s5pv210 Development Series three the realization of simple bootloader Chess Boy 1048272975 Bootloader is the code that executes the first segment of the embedded system after power-on. For a simple processor, there may not be a concept of bootloader, but for the application processor, there are different boot methods, different storage devices (Nand Flash, SD/M

originally did not want to write tutorials, because play Moto mobile phone is basically not a rookie, can be very simple to solve these problems, between the appearance of Moto State, more and more novice, reach the party is more and more, more and less good people, tutorials more and more not detailed. All kinds of problems really worried, buy a cell phone can not be happy to play. Novice look at the forum to see the dazzling, can not find a little clue, it is really annoying. What to do? New M

From http://blog.ednchina.com/hhuwxf/1915416/message.aspx, thanks to the author First, the introduction of bootloader From the previous hardware experiment you can know that after the system is powered up, a program is required to initialize: offWATCHDOG, changing the system clock, initializing the storage controller, copying more code into memory, and so on. If it can put the operating system kernel (whether from the local, such as Flash, or from the

Support Linux bootloader More, developed into the 2010, there have been some inevitable results, some bootloader has disappeared, some bootloader have been replaced, some bootloader were merged, some although in development, But has retreated to a remote corner. Now let's introduce a

BIOS The BIOS is the English "basic Input Output system" abbreviation, after literal translation after the Chinese name is "the basic input to export systems". In fact, it is a group of curing to the computer motherboard on the previous ROM chip program, it holds the computer's most important basic input and output of the program, system settings information, post-boot self-test program and system from the start program. Its main function is to provide the lowest, most direct hardware setup and

Nothing is more irritating than bootloader bad, give full play to the role of Grub 2, let bootloader work well. Why do you say that? Grub 2 is the most popular bootloader and is used on almost all Linux distributions. Bootloader is a vital software, but it's very easy to damage. Grub 2 is a boot loader

Reprinted from: http://blogs.msdn.com/yunxu/archive/2007/10/09/bootloader.aspx Embedded operating systems are becoming more and more important in embedded software development. When it comes to embedded operating systems, boot loader is an indispensable topic, whether it is Windows CE, embedded Linux, or other embedded operating systems. Most of them require boot loader to load the operating system. When we get a new board and want to run an embedded operating system on it, the first thing we ne

Http://www.mcuol.com/tech/107/26052.htm Introduction Location-Based independenceCodePIC (positionindependent code)ProgramThe design plays an important role in the development of embedded application systems. Development of bootloader programs and kernel initialization design, especially in bare metal environments. Location-independent programming methods can also be used in specific applications to build highly efficient dynamic link libraries,

1. Linux kernel Startup Process OverviewAn embedded Linux system can be divided into four parts: Boot Loader, Linux kernel, file system, and application. Bootloader is the first code executed after the system is started or reset. It is mainly used to initialize the processor and peripherals and then call the Linux kernel. After completing system initialization, the Linux kernel needs to mount a file system as the root file system ). The root file syst