Installation is the most prior to the build server. This installation includes two things, the installation of hardware and software. As a server that will serve the communication between the network, then a minimal server must have two network cards. One for the internal network and the other for external network. Other requirements in the server installation to follow the general installation requirements Operating System, such as:
– The amount of RAM required
– Large hard disk space to be used
– The type and speed of the processor
– Resolution video / screen (required for the operating system GUI)
This information is normally supplied by the provider of the operating system is concerned. For example, for the Operating System Debian Wheezy with Desktop requires a computer device requirements such as the following.
– At least a Pentium IV processor 1 GHz
– A minimum of 128 MB RAM (512 MB is recommended)
– At least 5 GB hard drive
Operating System Installation Methods
The operating system is installed in a particular part of the disk. This particular location is usually known as a disk partition. There are a number of methods that can be used to install the operating system. The determination of these methods can be based on the condition of the hardware, the operating system’s own requirements and user needs. Here are four choices of operating system installation:
1. New Installation
This option can be used when the network to be built is a new network, or the addition of new server hardware that does not support the network operating system available today. If you choose this option then all the data on the selected partition will be deleted. If there are applications that have been installed previously on the old operating system, then later needs to be reinstalled.
2. Upgrade
This option is widely used in network systems that are already running. This option is usually done because of the improvement features of the operating system used, as well as new features that are required. By selecting this option already installed applications that previously would likely still be used after the upgrade. This upgrade option will only replace the files of the previous operating system with a new one.
3. Multi-boot
If required to have more than one operating system on one computer, then this option can be selected to allow the use of more than one operating system. Later, each operating system will be placed on their respective partitions. Therefore, there needs to be preparation for a partition before installing a multi-boot it.
4. Virtualization
Virtualization is a technique that allows the operating system installation performed on the operating system that exists today. Not in a specific partition but in a specific file. This file is a representation of a virtual computer system. One computer can have more than one virtual computer. Therefore, the installation of more than one operating system is also possible with this technique. Some applications which allow to create virtual system is VirtualBox, VMWare, and Virtual PC.
Before installing the operating system there are some things that need to be considered, namely:
– The structure of the partition that will be used
One technique that is used to secure the data on the computer is to create different partitions for system and data. Given this separation will allow the system will be upgraded without affecting the data. This division can also assist in the backup and restore process.
– Determining the type of file system
The file system is a file management system that is applied to the operating system to manage the files stored on the hard drive. There are many file systems that have been developed at this time. Some frequently used is FAT16 / 32, NTFS, HPFS, ext2, ext3, ext4. Each operating system may have more than one file system. Linux like Ubuntu can manage almost all file systems that exist today. Each selected file system has its drawbacks and advantages of each.