chroot(8) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
CHROOT(8)               NetBSD System Manager's Manual               CHROOT(8)


NAME
chroot -- change root directory
SYNOPSIS
chroot [-G group,group,...] [-g group] [-u user] newroot [command]
DESCRIPTION
The chroot command changes its root directory to the supplied directory newroot and exec's command, or, if not supplied, an interactive copy of your shell. If the -u, -g, or -G options are given, the user, group, and group list of the process are set to these values after the chroot has taken place; see setgid(2), setgroups(2), setuid(2), getgrnam(3), and getpwnam(3). Note: command or the shell are run as your real-user-id.
ENVIRONMENT
The following environment variable is referenced by chroot: SHELL If set, the string specified by SHELL is interpreted as the name of the shell to exec. If the variable SHELL is not set, /bin/sh is used.
SEE ALSO
ldd(1), chdir(2), chroot(2), environ(7)
HISTORY
The chroot utility first appeared in 4.4BSD.
SECURITY CONSIDERATIONS
chroot should never be installed setuid root, as it would then be possi- ble to exploit the program to gain root privileges. NetBSD 9.99 August 13, 2011 NetBSD 9.99
Powered by man-cgi (2020-09-24). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.