Easy chrooting, mount and run this script :P

ezchroot.sh

#!/bin/sh

show_help() {
        echo " ** Usage: $0 <chroot_target> [shell]"
        echo " ** Where [shell] is not strictly required (will use /bin/sh)"
}

failure() {
        echo -n " "
        echo $@
        exit 3
}

check_mounted_eof() { #eof means exit on failure
        MNTPOINT=$1
        for mnts in $(mount | awk '{ print $3 }'); 
        do
                [[ $mnts == $MNTPOINT ]] && return
        done
        failure !! FATAL: target $MNTPOINT - no device mounted 
}

check_shell_eof() { #eof means exit on failure 
        NROOT_SHELL=$1
        if [ ! -f $NROOT_SHELL ]; 
        then
                failure !! FATAL: cannot find shell - $NROOT_SHELL - no such file 
        fi
}

TARGETS_BIND="/dev /sys /proc" #basic 
TARGET=$1
SHELL="/bin/sh"

if [[ $# < 1 ]];
then
        echo " !! Not enough arguments. Invoking help"
        show_help
        exit 1
fi

if [[ $# == 2 ]] || [[ $# > 2 ]]; 
then
        SHELL=$2
fi

if [ $UID -ne 0 ];
then
        echo " !! You must be root. Exiting"
        exit 2
fi

check_mounted_eof $TARGET
check_shell_eof $SHELL

for i in $TARGETS_BIND; 
do
        echo " ** BIND: $i"
        mount --rbind $i ${TARGET}${i} 2>/dev/null || failure !! FATAL: Cannot bind $i to destination
        mount --make-rslave ${TARGET}${i} 2>/dev/null || failure !! FATAL: Cannot bind $i to destination
done

echo " ** CHROOT: $TARGET (shell: $SHELL)"
chroot $TARGET $SHELL