imx6开机启动就进入download模式,有的板子进入文件系统之后会进入download模式.查看datasheet,Chapter 8 System Boot查找原因,记录于此. freescale论坛有关于这个问题的讨论,有硬件也有软件方面的原因. 参考链接 https://community.nxp.com/thread/316232 https://community.nxp.com/thread/338433 boot mode pin settings 8.2.1 Boot mod…

案例环境: 操作系统    :Oracle Linux Server release 5.7 64 bit 数据库版本:Oracle Database 10g Release 10.2.0.4.0 - 64bit Production 案例介绍: 在一个刚刚安装实例的服务器,使用dbca创建新的数据库时,在指定全局数据库名(Global Database Name)后,点击下一步时.报如下错误:The Oracle system identifier(SID) "SCM2" alrea…

目录 . Virtual Machine Introduce . Vmware Image File Format . VHD File Format . Convert VHD File Into VMDK . Run Virtual PC virtual machine in VMware Workstation . CoreOS Docker Configuration And Running && Vagrant + CoreOS + docker . Create A CoreO…

目录 ．文件系统及访问权限 . Linux Syslog . Linux日志审计 . 帐号安全管理 . 基础物理安全 . 系统编译环境安全 . 系统病毒.后门.rootkit安全 . 系统端口.服务安全 . 系统内核安全 . 基于系统日志审计的入侵检测 . 构建日志收集系统过程中面临的技术挑战 1．文件系统及访问权限 Linux为每个文件都分配了一个文件所有者,称为"文件属主",并赋予文件主惟一的注册名 . 对文件的控制取决于文件主或超级用户root(linux系统中的root用户有无…

  原文  http://resources.infosecinstitute.com/system-address-map-initialization-x86x64-architecture-part-2-pci-express-based-systems/   This article is the second part of a series that clarifies PCI expansion ROM address mapping to the system address m…

http://askubuntu.com/questions/221835/installing-ubuntu-on-a-pre-installed-windows-8-64-bit-system-uefi-supported If you are using Ubuntu 15.04+, many issues are now solved, so there is no need to follow this guide except if you are using any Ubuntu…

In Depth : Android Boot Sequence / Process What happened when I press power on button in my Android device ?What is Android boot sequence ?What is linux kernel ?What is different between desktop linux kernel and Android linux kernel ?What is bootload…

Lab 1 System Monitoring Goal: To build skills to better assess system resources, performance and security. Sequence 1: Inspecting your system Scenario: You are assigned responsibility for this system. You must learn how it isconfigured. Deliverable:…

大家好,我是痞子衡,是正经搞技术的痞子.今天痞子衡给大家介绍的是飞思卡尔i.MX RT系列MCU的BootROM功能简介. 截止目前为止i.MX RT系列已公布的芯片有三款i.MXRT105x, i.MXRT102x, i.MXRT106x,所以本文的研究对象便是这三款芯片,从参考手册来看,这三款芯片的BootROM功能差别不大,所以一篇文章可以概括这三款芯片的BootROM特性. 一.Boot基本原理 1.1 从内部FLASH启动 Boot是任何一款MCU都有的特性.提及Boot,首先应该联想…

Spring Boot Reference Guide Authors Phillip Webb, Dave Syer, Josh Long, Stéphane Nicoll, Rob Winch, Andy Wilkinson, Marcel Overdijk, Christian Dupuis, Sébastien Deleuze, Michael Simons, VedranPavić, Jay Bryant 2.0.0.BUILD-SNAPSHOT Copyright © 2012-20…