chroot is a command and also a recall system in operating systems Unix-like in which the root directory of a process running and also all its descendants will change. chroot stands for change root, and means a change to the root directory. When the root directory of a process is changed. the desired process can not access files outside of that directory are supposed to have access. In other words, the ... the desired process in the root directory of your new could be imprisoned, and all the relative paths, based on the root directory of the new translation are, and the path / time equivalent to the root directory will be the new. Recall, the system chroot() the first time during the development of Version 7 Unix in 1979 was introduced. On 18 March 1982 and 17 months before the release of the 4. the 2 SS. Bill Joy, the recall system in order to test system compile and install, the operating system, adding. Of chroot can be used to create and host a copy of the independent, and the virtual system.