chroot(1M) UNIX System V(System Administration Utilities) chroot(1M)
NAME
chroot - change root directory for a command
SYNOPSIS
/usr/sbin/chroot newroot command
DESCRIPTION
chroot causes the given command to be executed relative to the new root.
The meaning of any initial slashes (/) in the path names is changed for
the command and any of its child processes to newroot . Furthermore,
upon execution, the initial working directory is newroot .
Notice, however, that if you redirect the output of the command to a
file:
chroot newroot command >x
will create the file x relative to the original root of the command, not
the new one.
The new root path name is always relative to the current root: even if a
chroot is currently in effect, the newroot argument is relative to the
current root of the running process.
This command can be run only by the super-user.
SEE ALSO
cd(1) in the User's Reference Manual.
chroot(2) in the Programmer's Reference Manual.
Programmer's Guide: ANSI C and Programming Support Tools.
NOTES
One should exercise extreme caution when referencing device files in the
new root file system.
When using chroot, do not exec a command that uses shared libraries. This
will result in killing your process.
10/89 Page 1