boot.coldplug is responsible for all
devices that are not autodetected and for which no hotplug
events are generated. It merely calls hwup
for every static device configuration designated as
/etc/sysconfig/hardware/hwcfg-static-*
.
This can also be used to initialize built-in devices in
a different order than would be the case with hotplug, because
coldplug is executed before hotplug.