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CPU modes (also called processor modes, CPU states, CPU privilege levels and other names) are operating modes for the central processing unit of some computer architectures that place restrictions on the type and scope of operations that can be performed by certain processes being run by the CPU.
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rem_drv(1m) [redhat man page]

rem_drv(1M)															       rem_drv(1M)

NAME
rem_drv - remove a device driver from the system SYNOPSIS
rem_drv [-b basedir] device_driver The rem_drv command informs the system that the device driver device_driver is no longer valid.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. 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)). The following options are supported: -b basedir 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. Note - The root file system of any non-global zones must not be referenced with the -b option. Doing so might damage the global zone's file system, might compromise the security of the global zone, and might damage the non-global zone's file system. See zones(5). Example 1: Removing the sd Driver The following example removes the sd driver from use: example% rem_drv sd Example 2: Removing a Diskless Client The following example removes the driver from the sun1 diskless client. The driver is not uninstalled or unloaded until the client machine is rebooted. example% rem_drv -b /export/root/sun1 sd Note the caveat on the use of the -b option in the description of that option, above. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ add_drv(1M), kernel(1M), update_drv(1M), attributes(5), devfs(7FS) 6 Apr 2005 rem_drv(1M)

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rem_drv(1M)                                                                                                                            rem_drv(1M)

NAME
rem_drv - remove a device driver from the system SYNOPSIS
rem_drv [-b basedir] device_driver 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. 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)). The following options are supported: -b basedir 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. Note - The root file system of any non-global zones must not be referenced with the -b option. Doing so might damage the global zone's file system, might compromise the security of the global zone, and might damage the non-global zone's file system. See zones(5). Example 1: Removing the sd Driver The following example removes the sd driver from use: example% rem_drv sd Example 2: Removing a Diskless Client The following example removes the driver from the sun1 diskless client. The driver is not uninstalled or unloaded until the client machine is rebooted. example% rem_drv -b /export/root/sun1 sd Note the caveat on the use of the -b option in the description of that option, above. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ add_drv(1M), kernel(1M), update_drv(1M), attributes(5), devfs(7FS) 6 Apr 2005 rem_drv(1M)

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