![]() ![]() To create a new virtual machine, start up the Workstation program and click on Create a New Virtual Machine to invoke a wizard for the rest of the configuration. Note that you need the headers appropriate to your kernel as a rule of thumb, if you’ve installed everything needed to recompile your kernel, you’ll have no problems with this installation. To set up the program, run, also as root,, which walks you through a series of questions and eventually builds the needed modules. Register for an evaluation copy, download the software, and as root, run rpm -Uvh VMware-workstation- theVersionYouGot.rpm to install both the Workstation and Player programs. (VMware Fusion runs Windows on a Mac.) VMware is not open source software, but you can try it free for a month after that, you must either license it (you can buy a license online) or switch to VMware Player, which is a no-cost version that lets you use stored virtual machines but doesn’t let you modify them or create new ones. According to VMware, VMware Workstation supports 19 versions of Windows and 26 versions of Linux, and can run as host on both systems. ![]() VMware allows you to run multiple x86 (or x86 64-bit) operating systems on a single box. I changed to a dual-core box with 4GB RAM, and now I notice no difference in speed and responsiveness between the host and the guest machines. ![]() I used to run virtual machines on a Pentium III with 512KB of RAM, and while the performance was acceptable, it wasn’t exactly astounding. You cannot do much virtualization with a small, slow machine, but current-day multi-CPU computers, with 32- or 64-bit architectures and RAM capacity measured in gigabytes, can easily do the job. ![]() Each guest believes it has all of the host’s physical hardware at its disposal. In a virtual ecosystem, a host operating system runs one or more guest virtual machines in a simulated environment. Here’s a look at how get started with three popular virtualization environments: VMware, VirtualBox, and QEMU. By installing a virtual environment, you can run several operating systems on your machine, keeping them completely isolated from each other in their own sandboxes. With all the Linux distributions available, trying out more than one can be tempting. ![]()
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