Troubleshooting PCI Hot Plug Operations (hotplug)

The following service must be running to use the hotplug command.

svc:/system/hotplug:default

Otherwise, you will see the following message:

ERROR: hotplug service is not available.

The following error message is displayed on systems that do not have any supported I/O buses:

ERROR: there are no connections to display.
       (See hotplug(1m) for more information.)

The above message could mean that the system might have other hot-pluggible I/O devices, but you need to use the cfgadm command rather than the hotplug command to manage these devices.