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yourfanat wrote: I am using another tool for Oracle developers - dbForge Studio for Oracle. This IDE has lots of usefull features, among them: oracle designer, code competion and formatter, query builder, debugger, profiler, erxport/import, reports and many others. The latest version supports Oracle 12C. More information here.
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In many cases, the end of the year gives you time to step back and take stock of the last 12 months. This is when many of us take a hard look at what worked and what did not, complete performance reviews, and formulate plans for the coming year. For me, it is all of those things plus a time when I u...
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Configuring Linux Virtualization with Oracle VirtualBox
Using ISOs for virtual machines

Virtualization is the process creating a virtual version of a resource such as an operating system, network resource or storage device. Virtualization of an OS involves hosting an OS on another OS using a virtualizer such as Oracle VirtualBox. Various Linux distributions such as openSUSE, Ubuntu, and Fedora are available. In this article we'll discuss hosting openSUSE, Ubuntu, and Fedora on Oracle VirtualBox running on Windows OS.

Setting the Environment
Download the ISO images for the guest OS to be installed, openSUSE 12.1 Live KDE ISO, Ubuntu ISO, Fedora ISO. Download the Oracle VirtualBox exe file VirtualBox-4.1.8-Win.exe or another version from https://www.virtualbox.org/wiki/Downloads. Double-click on the exe file to start the setup wizard. Click on Next in the Oracle VirtualBox 4.1.8 Setup wizard. In Custom Setup select the features to install (the default features) and specify the directory Location to install. Click on Next. Select the required options in Custom Setup and click on Next. A Warning indicates that installing the VirtualBox Networing feature will reset the networking connection. For "Proceed with installation now" click on Yes. In Ready to Install click on Install. Oracle VM VirtualBox gets installed. Select the checkbox Start OracleVM VirtualBox after installation and click on Finish. The Oracle VM VirtualBox Manager gets installed.

Configuring openSUSE
In this section we'll install openSUSE distribution on Oracle VirtualBox. Click on Machine>New to create a new virtual machine.

The Create a New Virtual Machine wizard gets started. Click on Next. In VM Name and OS Type specify a Name, and in OS Type select Operating System as Linux. Select Version as openSUSE and click on Next.

In Memory select the amount of base memory as 512 MB and click on Next. In Virtual Hard Disk the recommended size of the start-up disk is indicated as 8.00 GB. Select Create a New Hard Disk option and click on Next. In Create New Virtual Disk wizard select File Type as VDI (VirtualBox Disk Image), which is the default selection, and click on Next. In Virtual disk storage details select Storage details as Dynamically allocated. A dynamically allocated disk only uses space as it gets filled up based on requirement, which could slow down its use. A Fixed size disk take longer to create but is faster to use. Click on Next. Select Dynamically allocated and select Next. In Virtual disk file location and size specify Location as OpenSuse and Size as 8.00 GB. Click on Next. In Summary click on Create. An OpenSuse virtual machine gets created. Select the virtual machine and click on Start Oracle VM VirtualBox Manager.

In VirtualBox Information click on OK for the default settings. The First Run Wizard gets started when the virtual machine is started for the first time so that an OS may be installed. Click on Next. In Select installation Media select Media Source as the openSUSE KDE Live ISO. Click on Next.

In Summary click on Start. The openSUSE Installer gets started. Click on Installation when the installer starts.

In Welcome click on Next. In Clock and Timezone select the Timezone, time and date settings and click on Next. In VirtualBox Information click on OK. In Suggested Partitioning click on Edit Partitioning Setup. The Expert Partitioner shows the Avaliable Storage on Linux. Click on Accept.

Click on Next in Suggested Partitioning. In Create New User specify the username and password and click on Next. In Live Installation Settings click on Next. Click on Install. In Confirm Installation click on Install. The installation starts up. In Perform Installation the root filesystem and the live image are shown as being copied. The OpenSuse Kernel gets started. The OpenSUSE virtual machine is shown as running.

Linux login for root gets performed.

Configuring Ubuntu
Next, we'll configure Ubuntu on Oracle VirtualBox. Create a new virtual machine as in the previous section. In VM Name and OS Type select Operating System as Linux and Version as Ubuntu. Click on Next. A virtual machine for Ubuntu gets created. Using the same procedure as in the previous section initialize the new virtual machine. Click on Start. Select Installation Media as the Ubuntu iso. Click on Next. The Linux ISO for Ubuntu gets started. Click on OK in VirtualBox Information. Ubuntu 11.10 virtual machine ISO gets initialized. Click on Install Ubuntu.

In Preparing to Install Ubuntu a system test is performed for enough drive space (4.4 GB) and connection with the Internet. Click on Continue. In Installation Type select Erase disk and install Ubuntu. The disk to be erased is not the Windows OS on which the Oracle VirtualBox is running, but the virtual machine disk. Click on Continue.

In Install>Erase Disk and Install Ubuntu the drive is selected by default. Click on Install Now.

Specify a username and password and click on Continue. Ubuntu gets installed on the virtual machine. Specify Password for the user. Ubuntu is shown as installed.

Configuring Fedora
Next, we'll install Fedora on Oracle VirtualBox. Create a new virtual machine as in the previous sections. Select Operating System as Linux and Version as Fedora. Click on Next. A virtual machine for Fedora gets created. Click on Start to start and initialize the virtual machine. The First Run Wizard gets started. In Select Installation Media select the Fedora ISO. Click on Next. Fedora OS gets installed on the virtual machine.

Summary
In this article we learned how to install and configure Linux distributions openSUSE, Ubuntu, and Fedora on Oracle VirtualBox virtualizer. We used the ISOs for virtual machines to install the Linux distributions on virtual machines running on Oracle VirualBox.

About Deepak Vohra
Deepak Vohra is a Sun Certified Java 1.4 Programmer and a Web developer.

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