RIO Remote I/O System User Guide
Installing RIO under Linux
Page 155
Chapter 2 Installing hardware and software
Removing ports from a system
You can remove groups of ports from a live system using the following procedure:
1. Determine the name and/or unique number of the RTA you wish to remove from the
system.
2. Power off and detach an RTA from the RIO network. See Removing a Remote Terminal
Adaptor (RTA)on page 173
3. At the command pr ompt, delete the RTA entry from the device driver by typing
riodelete <unique number|"name"> and pressing the Enter key.
4. Using a suitable text editor, edit the /etc/rio/rio.cf file to remove the RTA you have just
powered off. Remove the RTA line that contains the unique number and/or name of the
RTA just deleted.
5. At the command pr ompt, syntax check the new configuration file and fix any errors by
typing rioboot -s -c /etc/rio/rio.cf and pressing the Enter key.
6. At the command prompt, upload the changes to the driver by typing rioboot -u and
pressing the Enter key.
7. At the command pr ompt, delete the device nodes from the /dev directory by typing
riomkdev -d <unique number|"name"> and pressing the Enter key.
Hint
You can do this disconnecting the RTA link and getting its name from the console
messages that occur when an RTA is disconnected from the network. Alternatively, use the
rioidentify command to determine which RTA/name needs to be removed.