Debugging the Linux kernel with QEMU

1) DD If=/dev/zero of=./busybox.img bs=1m count=642) Mkfs.ext3 busybox.img3) Download busybox,http://www.busybox.net/downloads/#tar jxvf busybox-1.18.0.tar.bz2 (Decompression busybox compression pack)#cd busybox-1.18.0 (into the extracted BusyBox

Linux directory or file permissions

Linux directory or file permission character parsing drwxr-xr-xWith Ls-l, you can view information such as the time and size of permissions for a directory or file.Permissions occupy 10 characters, eg: "drwxrwxrwx" format: "Directory Tag" + "Owner

Linux Yum Introduction < turn >

The original is here http://doophp.sinaapp.com/archives/linux/yum-setting-parameter.htmlBecause it is the programmer's origin, usually although often contact with the server, occasionally will have to install some software, configuration

Linux kernel version

Locate the/usr/src/kernels/directory in Linux, which has a system kernel fileExample: 2.6.32-431.11.2.el6.x86_64Linux kernel version rulesThe Linux kernel version consists of three sets of numbers, such as: XX.YY.ZZXX: Currently released kernel

node. js "2" Development environment Setup (Windows, linux&amp; MAC)

There are a lot of installation methods, the following is just a way I like, the installation path does not have to be the same as me.Now the latest version number is v0.10.28Windows1, download (Put to E:\node\nodejs):Http://nodejs.org/dist/latest/x6

The relationship between permissions and commands in Linux.

We know that permissions are very important for user accounts, because they can restrict users from reading, creating, deleting, and modifying files or directories. 1. What are the basic permissions for allowing users to access a directory to become

After linux starts the network, the following error occurs: device eth0 does not seem to be present, delaying initialization, eth0delaying

After linux starts the network, the following error occurs: device eth0 does not seem to be present, delaying initialization, eth0delaying Problem Background: After deploying the ovf template in the vsphere client and starting the linux network,

Linux Command summary and linux Command Summary

Linux Command summary and linux Command Summary 1. man-t ls | ps2pdf-> ls.pdf generates ls help files in pdf format. 2. pushd.: press the current directory into the stack and use popd to return to the directory. 3. find-type f! -Perm-444: search for

Write Linux scripts and linux scripts

Write Linux scripts and linux scripts The following is a shell script for restarting a process in Linux. Take the tomcat process as an example: #!/bin/shpid=`ps -ef|grep tomcat|grep -v grep|awk '{print $2}'`if [ "$pid" = "" ] ; then echo "tomcat

Install jdk in ubuntu

Install jdk in ubuntuThe detailed steps for installing jdk1.7 in ubuntu14 are as follows: http://www.cnblogs.com/plinx/archive/2013/06/01/3113106.html   1. Download from Sun's official

Temporary File problems caused by Apache 500,

Temporary File problems caused by Apache 500, Recently, I have noticed that php in centos has various problems. First, the execution is interrupted when the smarty is large. Then, the running speed seems to be slowing down until tonight ..., I

Installing VMware Workstation 8 on Ubuntu 12.04

Installing VMware Workstation 8 on Ubuntu 12.04 Actually, I have taught the following methods: However, someone in Ubuntu asked: Www.bkjia.com @ ubuntu :~ $ Sudo sh./patch-modules_3.2.0.sh /Patch-modules_3.2.0.sh: 27: [: workstation8.0.2: unexpected

CentOS network startup Error

CentOS network startup Error I am using a CentOS virtual machine. In that environment, there is a dhcp service. It was used well, but the following error suddenly occurred: Error: determining IP information for eth0... failed; no link present. Check

How to Create a Wi-Fi hotspot in Ubuntu

How to Create a Wi-Fi hotspot in Ubuntu How to Create a Wi-Fi hotspot in Ubuntu. Method 1: network manager You can use the network manager that comes with Ubuntu to set it. Step 1 open the network settings of the system and open the network

Linux mobile phones access the internet through USB net

Linux mobile phones access the internet through USB net Indicate the source and author's contact information during reprinting.Source:Http://www.limodev.cn/blogContact information of the author: Li xianjing Set the IP address and route of the

Ubuntu dial-up Internet Graph

Ubuntu dial-up Internet Graph Ubuntu dial-up Internet access is actually very simple. You can right-click the connection icon in the upper right corner of Ubuntu to edit the connection, as shown in: Click Edit connection Edit connet Select the

Install SimpleScalar in Ubuntu 10.10

Install SimpleScalar in Ubuntu 10.10 Environment: Ubuntu 10.10; gcc 4.4.5; Architecture experiments are required. Installation is troublesome. The main reason is that the cross-compiler gcc version is 2.7.2. SimpleScalar writes "newer version"

Linux ln command details and usage

Linux ln command details and usage Ln is a very important command in Linux. Its function is to create a different link for a file in another location. The most common parameter of this command is-s, the specific usage is the target file of the ln-s

Strong Login User withdrawal in CentOS

Strong Login User withdrawal in CentOS You can run the pkill command to exit common users logging on to linux! 1. First, check the active user: w Display description: USER: current active USER TTY: terminal name FROM: Remote Login Host Name

Adjust the CentOS system time and time zone to synchronize with the Internet

Adjust the CentOS system time and time zone to synchronize with the Internet The procedure is as follows: 1. Modify the time zone# Cp/usr/share/zoneinfo/Asia/Shanghai/etc/localtimeChange to UTC + 8 in China# Vi/etc/sysconfig/clockZONE =

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