Ubuntu Manpages

chroot

run command or interactive shell with special root directory

chroot [OPTION] NEWROOT [COMMAND [ARG]...]
chroot OPTION

Run COMMAND with root directory set to NEWROOT.

specify user and group (ID or name) to use
specify supplementary groups as g1,g2,..,gN
display this help and exit
output version information and exit

If no command is given, run '${SHELL} -i' (default: '/bin/sh -i').

Written by Roland McGrath.

Report chroot bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report chroot translation bugs to <http://translationproject.org/team/>

Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

chroot(2)

The full documentation for chroot is maintained as a Texinfo manual. If the info and chroot programs are properly installed at your site, the command

info coreutils 'chroot invocation'

should give you access to the complete manual.