The chroot command in Linux/Unix allows you to change the root directory for a process and its child processes. This can be useful in several scenarios, such as system recovery, testing, or sandboxing.
Here are some examples of using the chroot command:
- Change the root directory to a new location: The following command changes the root directory to
/newroot:
sudo chroot /newroot
- Change the root directory and start a shell: The following command changes the root directory to
/newrootand starts a new shell:
sudo chroot /newroot /bin/bash
- Change the root directory and run a command: The following command changes the root directory to
/newrootand runs thelscommand:
sudo chroot /newroot ls
Note: To use the chroot command, you need to have root privileges. Also, make sure that the target root directory contains all the necessary files and directories, such as /bin, /lib, and /dev, for the process to run properly.