<para>Device units are named after the
<filename>/sys</filename> and
<filename>/dev</filename> paths they control. Example:
- the device <filename>/dev/sda5</filename> is exposed
+ the device <filename noindex='true'>/dev/sda5</filename> is exposed
in systemd as <filename>dev-sda5.device</filename>. For
details about the escaping logic used to convert a
file system path to a unit name see