Specifications

Configuring the Ethernet Drivers
K-7
K
K
Disabling the COM2 Serial Port Driver.
The SCO UNIX COM2 serial port driver can be disabled in version 2.0 by running
makdev serial and uninstalling the IBM-COM2 "board." COM2 can also be disabled
manually by editing two kernel configuration files and rebuilding the kernel:
1. Edit the file /etc/conf/sdevice.d/sio. The file contains two lines:
sio Y 1 7 1 4 3F8 3FF 0 0
sio Y 1 7 1 3 2F8 2FF 0 0
The line with a "3" in the sixth column specifies a serial I/O device driver on
IRQ3. Change the "Y" in the second column of the line to "N" to remove the
device driver from future kernel builds:
sio Y 1 7 1 4 3F8 3FF 0 0
sio N 1 7 1 3 2F8 2FF 0 0
2. Edit the file /etc/conf/pack.d/sio/space.c. In the section of this file defining
non-microchannel devices is the line:
{1,IBM_BOARD,1,3,1,sd(0x2f8),0,0,MCRBIT3}, /* ibm COM2 */
This line defines the COM2 port in the serial I/O driver device table. Using
"C" comment symbols, remove the line from the file:
/*{1,IBM_BOARD,1,3,1,sd(0x2f8),0,0,MCRBIT3},*//* ibm COM2 */
3. The final step in disabling the COM2 serial port driver is to rebuild the
kernel:
a. Log in as root and execute sysadmsh, or simply log in as sysadmsh.
b. Select the "System" option.
c. Select the "Configure" option.
d. Select the "Kernel" option.
e. Select the "Rebuild" option to build a kernel. When prompted, specify
that the new kernel should boot by default, and that a new kernel
environment should be built.
f. Exit sysadmsh.
g. Reboot the system ("shutdown -g0" or "init 6").
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