diskless-lib

# is a necessary step for a complete working system once chrooted.

mount_chroot_image(){
    local image_dir=$1

    mount -t proc proc ${image_dir}/proc
    mount -t sysfs sysfs ${image_dir}/sys
    mount -t tmpfs -o rw,noatime,mode=755 tmpfs ${image_dir}/tmp

    #mount -t tmpfs -o rw,nosuid,mode=0755 tmpfs ${image_dir}/var/run
    #mount -t tmpfs -o rw,noexec,nosuid,nodev tmpfs ${image_dir}/var/lock

    mount -t devpts -o rw,noexec,nosuid,gid=5,mode=0620 devpts ${image_dir}/dev/pts
    mount -t tmpfs -o rw,nosuid,nodev tmpfs ${image_dir}/dev/shm

    # Share apt's preferences, package's cache, etc...
#    for mount in etc/apt/ \
#                 var/lib/apt/lists/ \
#                 var/cache/apt/
#    do
#         mount --bind /${mount} ${image_dir}/${mount}
#    done

    # Create a fake initctl and a fake start-stop-daemon to prevent dpkg from
    # starting services when installing or upgrading those services
#    mv ${image_dir}/sbin/start-stop-daemon \
#       ${image_dir}/sbin/start-stop-daemon.real

#    [ -x "${image_dir}/sbin/initctl" ] &&
#    mv ${image_dir}/sbin/initctl \
#       ${image_dir}/sbin/initctl.real

#    ln ${image_dir}/bin/true ${image_dir}/sbin/start-stop-daemon
#    ln ${image_dir}/bin/true ${image_dir}/sbin/initctl
}


# umount_chroot_image <image_dir>
# 
#     Unmounts the chrooted image.

umount_chroot_image(){
    local image_dir=$1

    for mount in proc sys tmp       \
                 dev/{pts,shm}      \
#                 etc/apt/           \
#                 var/lib/apt/lists/ \
#                 var/cache/apt/
    do
         umount ${image_dir}/${mount}
    done

#    mv -f ${image_dir}/sbin/start-stop-daemon.real \
#          ${image_dir}/sbin/start-stop-daemon

#    [ -x "${image_dir}/sbin/initctl.real" ] &&
#    mv -f ${image_dir}/sbin/initctl.real \
#          ${image_dir}/sbin/initctl

}