Log in as the system administrator (root), Invoke the custom utility, Select the rocketport/rocketmodem device driver – Comtrol SCO OpenServer User Manual
Page 12: Select the software option, Select remove software, Select remove to confirm your choice, Type y to boot the kernel by default, Type y to rebuild the kernel environment, Press any key to return to the custom menu, Select host and exit to exit the custom utilit

12
Installation Prerequisites
SCO OpenServer
Installation Prerequisites
Before you install the SCO OpenServer device driver, you must:
•
Obtain the current driver, either on media or from the Comtrol web
or ftp site.
•
Remove any older RocketPort/RocketModem driver that may be on
your system.
•
Extract the current driver files and create an installation diskette.
Removing an Existing Driver
If upgrading from an earlier version of the driver, remove the old
driver before installing the new one. Follow these steps:
1.
Log in as the system administrator (root).
2.
Invoke the custom utility.
3.
Select the RocketPort/RocketModem device driver to be removed.
4.
Select the Software option.
5.
Select Remove Software.
6.
Select Remove to confirm your choice.
7.
Type Y to boot the kernel by default.
8.
Type Y to rebuild the kernel environment.
9.
Press any key to return to the custom menu.
10. Select Host and Exit to exit the custom utility.
11. If you have other drivers to remove at this time, do so.
12. Reboot the kernel so that your changes take effect.
Installing the New Driver
Use the following instructions to extract and install the RocketPort/
RocketModem SCO OpenServer driver.
Extracting the Driver Files
The RocketPort/RocketModem SCO OpenServer driver is distributed
as either a UNIX install diskette or as a compressed DOS-format file
named 6543.z. If you have the UNIX version, skip to Driver
Installation on page 13.