chroot(1M)chroot(1M)NAMEchroot - change root directory for a command
The command executes command relative to the newroot. The meaning of
any initial slashes in path names is changed for command and any of its
children to newroot. Furthermore, the initial working directory is
Note that command suffixes that affect input or output for the command
use the original root, not the new root. For example, the command:
locates file relative to the original root, not the new one.
The command variable includes both the command name and any arguments.
The new root path name is always relative to the current root. Even if
a is currently in effect, the newroot argument is relative to the cur‐
rent root of the running process.
This command is restricted to users with appropriate privileges.
International Code Set Support
Single- and multibyte character code sets are supported.
command cannot be in a shell script.
Exercise extreme caution when referring to special files in the new
root file system.
does not search the environment variable for the location of command,
so the absolute path name of command must be given.
When using to establish a new environment, all absolute path name ref‐
erences to the file system are lost, rendering shared libraries inac‐
cessible. If continued access to shared libraries is needed for cor‐
rect operation, the shared libraries and the dynamic loader be copied
into the new root environment.
SEE ALSOchdir(2), chroot(2).