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cvsd-buildroot(8) [debian man page]

cvsd-buildroot(8)					      System Manager's Manual						 cvsd-buildroot(8)

NAME
cvsd-buildroot - create a chrooted directory structure for use in cvsd. SYNOPSIS
cvsd-buildroot DIRECTORY DESCRIPTION
cvsd-buildroot creates and populates a directory that can be used as a chroot jail for running cvsd (see cvsd(8) ) in. This script should be run as the root user since the creation of devices and the changing of ownership and permissions require this. The script gives warnings about files that it's not expecting. cvsd-buildroot creates the following directory structure: /bin This directory is populated with the cvs binary that is found on the system. /lib This directory is populated with all the libraries that are required for running programs in the /bin directory as well as some predefined required libraries that are present on the system. /dev Here null and zero devices are created. /etc In this directory a passwd file is created that is used for matching user id's with usernames. The root and cvsd user are added to this file if they're not there yet. The passwd file is checked for consistency with the system /etc/passwd to prevent mistakes. The passwd file is also populated with users referenced in the repository directories. Note that no password data from /etc/passwd or any other file is stored in the generated passwd file, all password entries are set to 'x'. /usr Here symbolic links are placed to /bin and /lib for some common library and binary directories found on the system. This is done for systems that have hard-coded paths for libraries. /libexec and /usr/libexec Symbolic links for these directories are created if they are present on the system. /tmp This directory is cleaned out on systems that have tmpreaper. After the directories are created and populated ownership and rights are set to a reasonable value (root:root,umask=022). OPTIONS
cvsd-buildroot takes one argument, namely a directory in which the chroot jail will be created. The directory should be specified with an absolute path. NOTES
Creating a chroot environment is a terribly non-portable thing to do and therefore you may experience problems with missing libraries and system files. For more information see the FAQ and the README. If you have to install libraries or perform actions not covered by cvsd-buildroot please report your findings to <cvsd-users@lists.arthurdejong.org>. Rerunning cvsd-buildroot after you have created your repository is advised since the repositories are checked for references to userid's and lockfile directories. SEE ALSO
cvsd(8) README FAQ AUTHOR
Arthur de Jong <arthur@arthurdejong.org>. Version 1.0.24 Jun 2012 cvsd-buildroot(8)

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chroot(1M)						  System Administration Commands						chroot(1M)

NAME
chroot - change root directory for a command SYNOPSIS
/usr/sbin/chroot newroot command DESCRIPTION
The chroot utility causes command to be executed relative to newroot. The meaning of any initial slashes (/) in the path names is changed to newroot for command and any of its child processes. Upon execution, the initial working directory is newroot. Notice that redirecting the output of command to a file, chroot newroot command >x will create the file x relative to the original root of 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. RETURN VALUES
The exit status of chroot is the return value of command. EXAMPLES
Example 1 Using the chroot Utility The chroot utility provides an easy way to extract tar files (see tar(1)) written with absolute filenames to a different location. It is necessary to copy the shared libraries used by tar (see ldd(1)) to the newroot filesystem. example# mkdir /tmp/lib; cd /lib example# cp ld.so.1 libc.so.1 libcmd.so.1 libdl.so.1 libsec.so.1 /tmp/lib example# cp /usr/bin/tar /tmp example# dd if=/dev/rmt/0 | chroot /tmp tar xvf - ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
cd(1), tar(1), chroot(2), ttyname(3C), attributes(5) NOTES
Exercise extreme caution when referencing device files in the new root file system. References by routines such as ttyname(3C) to stdin, stdout, and stderr will find that the device associated with the file descriptor is unknown after chroot is run. SunOS 5.11 15 Dec 2003 chroot(1M)
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