The rem_drv command informs the system that the device driver device_driver is no longer valid. If possible, rem_drv unloads device_driver
from memory. Entries for the device in the /devices namespace are removed. rem_drv also updates the system driver configuration files.
If rem_drv has been executed, the next time the system is rebooted it automatically performs a reconfiguration boot (see kernel(1M)).
Sets the path to the root directory of the diskless client. Used on the server to execute rem_drv for a client. The client machine must be rebooted to unload
the driver.