install ruby on rails windows step by step

If you want to use a hardware peripheral attached to a MAC on a virtual machine, such as a USB flash drive, IPhone, etc., we need to download a hardware support extension installation package on our website. Similarly, we first open the download page of the virtual machine: Https://www.virtualbox.org/wiki/Downloads, click on the "all supported Platforms" download link in the page, After the download is complete, in the Finder, in the download directory, locate the "Oracle_vm_virtualbox_extens

When installing PostgreSQL, the following problems occur: Problem running post-install step. installation may not complete correctlyThe Database Cluster initaialisation failed After retrying for many times, the problem persists. In the end, the problem is solved through online search by using the following methods: the problem of database locale settings cannot be selected as default, and the options

Cd/mnt[[email protected]/mnt]# lsHgfs[Email protected]/mnt]# CD Hgfs[[email protected] hgfs]# lsSmoke[Email protected] hgfs]# CD smoke[[email protected] smoke]# ls[email protected] smoke]# CP Smoke_install.csh/home[email protected] smoke]# CP Smoke_v35.nctox.data.tar.gz/home[email protected] smoke]# CP smoke_v35. Linux2_x86_64pg.tar.gz/home[Email protected] smoke]# setenv smk_home/home/smk_home[Email protected] smoke]# mkdir-p $SMK _home[Email protected] smoke]# Cd/home/smk_home[Email protected]

1. Download Zookeeper 3.4.52. Decompression3, move to the right place/home/hadoop/zookeeper4. Set a location for zookeeper to place data/home/hadoop/zk5. Modify the Zookeeper configuration fileVim/home/hadoop/zookeeper/conf/zoo.cfgticktime=2000initlimit=10Synclimit=5Datadir=/home/hadoop/zkclientport=2181server.1=hd1:2888:3888server.2=hd2:2888:3888server.3=hd3:2888:3888server.4=hd4:2888:38886. Distribute zookeeper to other nodesScp-r/home/hadoop/zookeeper Hd2:/home/hadoopScp-r/home/hadoop/zookeep

Tools Required:USB flash drive, Ubuntu ISO image, universal USB Installer1. Download Ubuntu(1)(2) I download the 14.04 version here(3) I download 64-bit system hereAfter the download is a torrent seeds, double-click after the download with thunder can be2, Download universal USB installer Tool, make U disk boot disk3, double-click Universal USB Installer, click I Agree, such as, finally click Create, wait a few minutes, OKHDD installation Ubuntu:Download an ubuntu ISO image, the image of the wub

Tags: successful ima SQ installation MySQL cannot find machine specified nbsp installation5 after the installation is successful, start the MySQL times error:System error 2, the specified file could not be found. Cause: Some systems installed MySQL did not uninstall cleanly, or the system comes with a lite version of MySQL caused the registry about MySQL configuration and the actual installation path inconsistent.5.1 Open the registry win + R5.2 Navigate to Hkey_local_machine-system > CurrentCon

hostsifconfig command, we know the IP addresses of www.linuxidc.com _ 1-desktop and www.linuxidc.com _ 2-desktop. Here: 192.168.0.1 192.168.0.2 After the sudo vi/etc/hosts command, we delete the original IPv4 content of the hosts files of the two and then modify them as follows: 192.168.0.1 www.linuxidc.com _ 1-desktop 192.168.0.2 www.linuxidc.com _ 2-desktop Ping yourself and the other party on both computers to check whether the hosts file is correctly configured. Ping www.linuxidc.com _ 1-

Online search for a long time are said to delete all kinds of documents, direct Baidu apply security settings, said MySQL did not uninstall clean. No.Look at the log foundYou must SET PASSWORD before executing this statementThen Baidu this sentence, a variety of access to information.Go to the command line and find the MySQL command. The words flashed through, could not be used, and then found the bin under the MySQL server, for example, to enter MySQL hereInsert the following statementSET PASSW

to:Many steps have actually been performed. We step into, run to here:But found in the Watch window that the this pointer is not CWinApp but his subclass:Why?See also: http://blog.csdn.net/ningyaliuhebei/article/details/42292147 's explanation. Because the object we are creating is mfcfirstsinefile, he will pass the address of the created object, that is, the address of the Theapp as a parameter to the Theapp constructor, and the Theapp constructor c

The offending one-step exception is the current eflags instead of the eflags that triggered the exceptionThat isPushfMOV EAX, DWORD Ptr[esp]OR EAX, 0x100MOV DWORD PTR [ESP], EAXPopfTo implement a single-step exception (especially if you need to be aware that the next statement will trigger a single-step exception after the single-

Step 5: Protect Web Services in Windows A considerable number of large and medium-sized enterprises are using Windows Server and. Net architecture to build enterprise Web services and applications. Therefore, Web Services and Web applications are usually supervised by ASP. NET and IIS. Protecting Web Services and Web applications is a configuration environment i

window| button with Windows XP friends are fascinated by its beautiful interface, now we use fireworks MX in just a few steps to create a pleasing Windows XP Style button. 　　 First step: shape/Gradient Fill Pull a rounded rectangle in the center of the canvas with a rectangular tool; Open the Fill panel (shortcut "Shift+f7") select Linear from the Drop-down m

When we chose Windows Server 2008 as the service platform for our enterprise, our employees ' operating system might be Vista or just released Windows 7, how can we achieve low-cost and efficient management of the enterprise in the face of such an IT environment? Microsoft provides us with a very advantageous IT infrastructure environment management way---domain (for the concept of domain please refer to: h

Jenkis, in the Execution of Windows command compilation. NET project, the command executed successfully, but still reported such a mistake:Build Step ' Execute Windows Batch command ' marked build as failureThe answers to several stackoverflow are combined for the following reasons:Jenkins executes Windows commands, an

Ubuntu has been installed in the previous step, and the language pack is updated so that you can start next. 1. Install ARM-LINUX-GCC, whether you are downloading from the Internet, or the development of the CD inside, can be, the version is not limited, my is arm-linux-gcc-4.3.2. Enter ARM-LINUX-GCC installation package directory, my location is in/home/cfan/temps this directory Open a terminal, CD to

, find the local security policy, as follows:Note: This must be changed to Classic mode, which defaults to guest mode only.4, in the client (you can also use this machine) to test, in the " run " field to enter the server IP address, followed by C $ That represents the system resource directory under Server C, such as:"\\192.168.96.135\C$" to see if the server can be accessed C The user name and password may need to be entered, and the server-side account and password will be OK , as shown belo

. However, if your Windows 7 Administrator account is not encrypted, you may be able to directly control your computer by simply logging on to the Administrator account on your computer (this may be your computer in an open environment, of course). Adding a password that only you know for the Windows7 administrator account is much more secure. Just one more step and start creating a

Don't step on the white. Zen Mode Windows program implementationThe code is as follows#include Don't step on the white. Zen Mode Windows program implementation

Reload the system after the reload MySQL5.6, the results to the last step when an error occurred, after returning to find that the original is in the current Root password filled in the content, this text box should be empty.A small problem may cause the installation to fail and be logged.Author : Gu Sign : Don't lose to who you used to be Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. "MySQ

Windows XP desktop: Let's move to the next step-general Linux technology-Linux technology and application information. For more information, see the following. XP, how long can you survive, Microsoft's last seedling? Linux, how long do you want to wait, the hope of the freelancers. (400) {this. resized = true; this. width = 400; this. alt = 'click here to open new window';} "onmouseover =" if (this. resi