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资源说明：Personal+Personality Chroot
chpersroot: Personal+Personality Chroot
=======================================
A program to simplify the use of 32-bit chroots on 64-bit non-multilib Linux
systems.
Basically, this program is equivalent to running::
sudo linux32 chroot /path/to/my/chroot su -l "$USER" [args]
but because it's installed setuid you don't need to type a password and the
command line is somewhat shorter because the location of the chroot is
compiled in at build time.
Build Instructions
------------------
Setup your configuration if you want to::
cat >config.mak <<\EOF
prefix=/usr/local
EOF
then build::
make && sudo make install
Configuration
-------------
The configuration file ``/etc/chpersroot.conf`` is read to determine how to
enter a chroot. This file is in INI format, although certain keys can be
multi-valued.
An example file might be::
[gentoo32]
rootdir = /gentoo32
copyfile = /etc/resolv.conf
personality = linux32
The configuration to use is chosen by the basename of argument zero, in other
words it is the filename by which the program is invoked. If you only have a
single configuration and don't want to worry about this, just call the
configuration ``chpersroot``, otherwise you should create a symbolic link
somewhere in your path that links from your configuration's name to the
``chpersroot`` executable.
Configuration Keys
~~~~~~~~~~~~~~~~~~
The following configuration keys are available:
``rootdir``
The path to the new root.
``copyfile``
A file to be copied into the new root. This key may be specified multiple
times if you want to copy multiple files.
``personality``
The personality for the chroot. This is one of the ``PER_`` variables
from ``/usr/include/linux/personality.h`` with the prefix removed and
underscores converted to hyphens; the comparison is case insensitive.
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