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Dual-boot is the method of installing multiple operating systems on the computer, and choosing which one when it boots . This is usually managed with a boot loader such as LILO, or the newer GRUB loader.

Dual-booting is today found in many situations, such as where different software is available on different operating systems, yet can not run under the one same system. A dual-boot configuration will allow a user to use all of this different software on the one computer. This configuration may also aid developers, in that having more than one operating system and thus development environment or testing environment available without having to switch computers can reduce costs considerably. Today with more powerful computers, a more reasonable solution to these problems might be to use a piece of virtual machine software to emulate another computer from within the operating system of choice.

New Linux users, migrating from the Microsoft Windows platform will usually dual-boot, allowing them to trial the different OS without losing the functionality and preferences they may have with their existing setup. This is a major advantage, in that it can save money on new hardware.

Unfortunately, compatibility issues arise with different operating systems sharing the same drive -- one operating system may not be able to detect or recognize the other's filesystem and thus may want to format it to its native filesystem, erasing existing data. This can be overcome by using multiple drives, or by partitioning an existing drive, to allow multiple filesystems.

When one has a similar configuration to those mentioned above, it is usually referred to as a dual-boot.

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Topics: Dual Boot, Dual Space, Dualism, Dual tone Multi frequency...

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