andy baxter wrote:
#!/bin/bash
#
# testing-shell - start a root shell chrooted to the testing release.
# must be run as root
JAIL_ROOT=/jail # modify this to point to your chrooted directory.
PROGRAM=$0
if [ `id -u` -ne 0 ] ; then
echo "Must be run as root"
exit
fi
if [ `ps ax | grep $PROGRAM | grep -v grep | wc -l` -gt 2 ] ; then
# n.b. -gt 2 above is because the process forks so you get 2 lines
in the output.
echo "${PROGRAM##*/} seems to be running already - not preparing the
chrooted system."
else
echo "Preparing the chrooted system..."
mount /dev $JAIL_ROOT/dev -o bind
correction - should be -'... -o rbind'
mount proc -t proc $JAIL_ROOT/proc
mount /tmp/.X11-unix $JAIL_ROOT/tmp/.X11-unix -o bind
cp /tmp/.X0-lock $JAIL_ROOT/tmp
fi
cp /etc/hosts $JAIL_ROOT/etc/hosts
echo "--- entering chrooted system --->"
echo
chroot $JAIL_ROOT /bin/bash
if [ `ps ax | grep $PROGRAM | grep -v grep | wc -l` -gt 2 ] ; then
echo "${PROGRAM##*/} still running - not taking down chrooted system."
else
# last one out clean up...
echo "Taking down the chrooted system..."
umount $JAIL_ROOT/dev
umount $JAIL_ROOT/proc
umount $JAIL_ROOT/tmp/.X11-unix
rm $JAIL_ROOT/tmp/.X0-lock
fi
echo "<--- returned to root system ---"
echo
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