From shellcheck:
/usr/lib/dracut/modules.d/90multipath/multipathd.sh:3:32: warning[SC2039]: In POSIX sh, == in place of = is undefined.
/usr/lib/dracut/modules.d/90multipath/multipathd.sh:3:32: warning[SC2193]: The arguments to this comparison can never be equal.
Add support for 'rd.multipath=default' for using the default
configuration on boot. The intended purpose for this is to help support
ostree-based image boots from multipathed devices (such as Fedora and
Red Hat CoreOS).
install /etc/multipath/wwids
With the proper 40-multipath.rules and new udev device-mapper mechanism,
we don't need the multipath scan anymore.
rhbz#595719