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You can configure your network and hostname under the “ Network and Hostname” section. So select “automatically configure partitioning”. I am not partitioning my disk since this is a test machine that will be destroyed once the demonstration is completed. You can partition your disk under “ Installation Destination”. An important step for any OS installation is how you partition your Hard disk. You can configure NTPD and opt to use Network time. This is where you will choose to configure important parameters related to your OS.

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Choose “ Install Centos 7” to start the installation. Start CentOS Virtual Machine Install CentOS 7 on VirtuaBox VMġ. Now press the “ Start” icon to start the VM. NOTE: Whatever steps are shown till now will be the same irrespective of the type of Guest Operating system you choose to install.

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Follow the procedure as shown in the below image to attach the iso file. Now you have to map the downloaded centos 7 iso file with the created VM so once the machine gets booted it will pick the iso file for installation of the OS. Once you have configured all the parameters press the “ Create” button and your VM hardware profile will be created. Virtual Machine Dynamic Size Virtual Machine Disk Settings It will allocate a minimum size of 2MB as shown in the below image and will continue to grow till the maximum allotted file size which is 25 GB in this case. The advantage of dynamic allocation is it will not occupy the entire allocated space.

Allocation Type – You can set if your disk file should be of fixed size or dynamically allocated.

File Size – Set size for your disk file.

File Location – Location where your Disk file will be created.

There are other 3 formats HDD, QCOW, QED which you should not worry about at this stage since using these formats are very rare. The advantage with this format is if you use both Virtualbox and VMware parallelly you can choose this format.

VMDK (Virtual Machine Disk) – This is the native format for VMware.

VHD (Virtual Hard Disk) – This is the native format of Microsoft Virtual PC.

But you have tools ( qeny-img) to convert VDI to other formats easily.

VDI (Virtual Box Disk Image) – VDI is the native format for VirtualBox and other virtualization platforms don’t support this format.

Hard Disk Types – Virtualbox supports different Hard disk file types, you should know which one should be used.

vdi file) and file type and allocation method. In this step you will decide what will be the size of your Virtual Hard Disk (. Virtualbox gives you the flexibility to either create a new disk or use an existing disk that is already created.

Hard Disk – Create a new virtual hard disk for your VM.

RAM – You can control RAM allocation for your VM using the slider or just enter a value in the Value tab.

#Centos 7 install guide vm windows

Version – Different versions like Redhat Linux, Ubuntu Linux, Windows Server, etc.Type – Type of operating system(Linux, Windows, BSD).Machine Folder – Location where your VM files will be placed.

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This is where you will decide which Guest OS flavor ( Windows, Linux, BSD, macOS) you choose to install, what will be the RAM size and how to create/attach the hard disk file. Choose Expert Mode Expert Mode Virtual Machine Setup To use the expert mode you have to choose “ Expert Mode” as shown in the below image. The difference between both these modes are, Guided Mode will show each configuration item in a different window while expert mode will show it in a single window. You will configure disk space, Number of Ram, CPU Cores, etc. The first step is to configure the hardware profile for your CentOS Guest OS. Open Virtualbox and press “ New” icon or press “CTRL+N”. Once the iso file is downloaded you can start building the Guest OS. Download CentOS 7 Linux Create New CentOS 7 Virtual Machine

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I choose to download the Minimal version via torrent. Download CentOS 7 Linuxįirst, we have to download the CentOS 7.9 iso file from the official site. Whereas CentOS 8 support will end at the end of 2021. Note: The support for CentOS 7 remains unchanged, which means updates and security patches will be available until June 30, 2024. I choose CentOS 7 with a Minimal install you can choose whatever OS you prefer. You can check the official page to check the list of supported Guest OS. Now it’s time to choose and install a Guest OS. In the previous article, we have seen how to install Virtualbox in different flavors of Linux.