sudo cp -a /etc/hostname /64/etc/hostname
sudo cp -a /etc/environment /64/etc/environment
sudo cp -a /etc/sudoers /64/etc/sudoers
sudo cp -a /etc/localtime /64/etc/localtime
sudo cp -a /etc/locale.gen /64/etc/locale.gen
sudo cp -a /etc/timezone /64/etc/timezone
sudo cp -a /etc/resolv.conf /64/etc/resolv.conf
sudo cp -a /etc/apt/sources.list /64/etc/apt/sources.list

# Check for similar UID/GID settings before doing these,
# or just create a user with the same UID as your account
# on the host
sudo cp -a /etc/passwd /64/etc/passwd
sudo cp -a /etc/group /64/etc/group

# Bind-mount system dirs into chroot
BINDDIRS="/sys /proc /dev /home /tmp /var/tmp /usr/src /lib/modules"
for i in $BINDDIRS; do sudo mount --bind "$i" "/64$i"; done

# Now do the actual chroot
sudo chroot --userspec=`id -u` /64