vhdpartx fails to execute because /usr/lib/libvhdio.so.1.0 is absent

set -e

PARTUTIL=/usr/sbin/part-util
LIBVHDIO=/usr/lib/libvhdio.so.1.0

die()
{
    echo "$@"
    exit 1
}

usage()
{
    echo "usage: $0 [-a | -d | -l] vhd [lib]"
    echo "-a add partition mappings"
    echo "-d del partition mappings"
    echo "-l list partition mappings"
    exit 1
}