Chapter 1. Steps to Get You Started 51.5. Which Installation Class is Best For You?Usually, Red Hat Enterprise Linux WS is installed on its own disk partition or set of partitions, or overanother installation of Linux.WarningInstalling Red Hat Enterprise Linux WS over another installation of Linux (including Red Hat Linux)does not preserve any information (files or data) from a prior installation. Make sure you save or backup any important files!Red Hat Enterprise Linux WS provides two different classes, or types, of installations:WorkstationThe Workstation configuration includes, at your option, the ability to install a default X WindowSystem environment with management.CustomA Custom installation allows you the greatest flexibility during your installation. You chooseyour boot loader, which packages you want, and more. Custom installations are most appropriatefor those users more familiar with Red Hat Linux installations and for those afraid of losingcomplete flexibility.These classes give you the option of simplifying the installation process (with some potential for lossof configuration flexibility), or retaining flexibility with a slightly more complex installation process.Next, take a detailed look at each class, so you can decide which one is right for you.1.5.1. Workstation InstallationBelow are the minimum recommended disk space requirements for a Workstation installation whereonly one language (such as English) will be installed.NoteThe minimum recommended disk space requirements as listed below, are just minimum recommen-dations for the installation itself. You should adjust these disk space requirements as appropriate foryour specific computing needs (such as disk space for personal files, additional applications you mayinstall at a later time, and so on).• Workstation (minimum, no graphical interface): 800 MB• Workstation (default, choosing GNOME or KDE): 1 GB• Workstation (choosing GNOME and KDE): 1.3 GB• Workstation (choosing everything, GNOME and KDE): 1.5 GBIf you plan to choose all group packages, as well as select additional individual packages, you maywant to allow yourself 2.0 GB or more of disk space. This will provide space where additional datamay be written.