Fixed-size virtual disks generally perform better, but the difference is really only noticeable if you are creating a large drive. If you set the hard drive to dynamically allocated, VirtualBox will start the machine with a relatively small virtual hard drive that will grow as more space is needed (up to the maximum that you set). Next, VirtualBox will ask you if you would like the hard disk to be dynamically allocated or set at a fixed size. When asked what type of hard disk you want to create, just leave this setting at the default, VDI or VirtualBox disk image. Since this is going to be your first virtual machine, you want to select Create a virtual hard disk now. Related: Top Linux Operating Systems You Should Try in a Virtual Machine VirtualBox will then ask you if you want to create a virtual hard disk for your new virtual machine.
You should not, however, assign more than half of your system's physical RAM to the virtual machine. VMware fusion by comparison is point-n-click easier. I use virtualbox cause its free, does everything I need, and I can roll a headless vm on Linux from console in about 15 minutes. It takes a bit of work to set up (there are howtos around), but after that it should provide what you need.If you have a large amount of RAM you may get better performance by raising the amount allocated to your guest system. Tailor-Complex Additional comment actions Hate to say it, but VMware tends to be easier. Compare features, ratings, user reviews, pricing, and more from VirtualBox competitors and alternatives in order to make an informed decision for your business. SourceForge ranks the best alternatives to VirtualBox in 2022. It has existed for a long time, so an old host kernel won't be a problem. Compare VirtualBox alternatives for your business or organization using the curated list below. UML lets you run a Linux system as an unprivileged process on the host system. Compare VirtualBox alternatives for your business or organization using the.
The one option that I think is suitable for you is User-mode Linux. VirtualBox is available for Windows, Mac and Linux. There are many options for virtualizing Linux on Linux ( cgroups/ LXC, OpenVZ, VServer), but they require a custom or recent kernel. Another possibility is Qemu QEMU can be very slow because it fully emulates a processor rather than using the host processor's virtualization capabilities, but it doesn't need any low-level support on the host, it runs as a perfectly ordinary process. KVM may be a possibility, but it was only included in the stock kernel as of 2.6.20, and I don't know how hard it is to get it running on 2.6.18.
If you want to use a stock 2.6.18 kernel, there aren't many options.įor full virtualization, VirtualBox and VMware should work, but you may need to use older versions if their kernel module no longer supports such an old kernel. Wikipedia has a comparison of platform virtual machines.
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