转:http://www.linux-mtd.infradead.org/faq/ubi.html UBI FAQ and HOWTO Table of contents How do I enable UBI? How do I attach an MTD device? How do I create/delete UBI volumes? How do I run JFFS2 on top of an UBI volume? Can I run ext2 on top of UBI? Do…
EF虽说对LocalDb支持的不错,但LocalDb有自身的缺陷(不想sqlite那样数据库文件可以像普通文件一样使用). LocalDb在一个计算机上会对数据库有唯一性约束,要求本机的localdb不能重名.如果没有注意到这一点就会有以下问题: Cannot attach the file ‘{0}' as database '{1}' EF CodeFirst 指定不同数据库文件路径来新建同名的数据库时就会出现无法新建数据库(localDb). 删除localdb的方法 不能仅仅删除文件,需…
Cannot attach the file 'D:\GitHome\cae\CAE\App_Data\membership.mdf' as database 'membership'. 说明: 执行当前 Web 请求期间,出现未经处理的异常.请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息. 异常详细信息: System.Data.SqlClient.SqlException: Cannot attach the file 'D:\GitHome\cae\CAE\App_…
Robot Bender decided to make Fray a birthday present. He drove n nails and numbered them from 1 to n in some order. Bender decided to make a picture using metal rods. The picture is a closed polyline, which vertices should be nails (in the given orde…
Cannot attach the file 'D:\GitHome\cae\CAE\App_Data\membership.mdf' as database 'membership'. 说明: 执行当前 Web 请求期间,出现未经处理的异常.请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息. 异常详细信息: System.Data.SqlClient.SqlException: Cannot attach the file 'D:\GitHome\cae\CAE\App_…
本文转载自JVM Attach实现原理剖析 前言 本文旨在从理论上分析JVM 在 Linux 环境下 Attach 操作的前因后果,以及 JVM 为此而设计并实现的解决方案,通过本文,我希望能够讲述清楚如下三个主要方面的内容. Attach 为什么而出现 Attach的出现究其根本原因,应该就是为了实现 Java 进程(A)与进程(B)之间的本地通信.一旦这个通信通道能够成功建立,那么进程 A 就能通知进程 B 去执行某些操作,从而达到监控进程 B 或者控制进程 B 的某些行为的目的.如 jst…
Gson解析JSON字符串时出现了下面的错误: No-args constructor for class X does not exist. Register an InstanceCreator with Gson for this type to fix this problem. 解决的办法是把对应的Class改成静态类.…
I joined the NodeJS online Course three weeks ago, but now I'm late about 2 weeks. I pay the codeschool yearly subscribed, but I have lost the track long time. I get more weight than expected. I like more and more my MacBook Pro I maybe go to the UST…
Programming Contest Problem Types Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems s…
You are given two jugs with capacities x and y litres. There is an infinite amount of water supply available. You need to determine whether it is possible to measure exactly z litres using these two jugs. If z liters of water is measurable, you must…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
Postgresql Postgresql支持Code First的方式自动生成表,不过默认的模式是dbo而不是public,而且还可以自动生成自增主键. <?xml version="1.0" encoding="utf-8"?> <configuration> <configSections> <!-- For more information on Entity Framework configuration, vis…
