Operating instructions

SEA M300USERSGUIDE

GETTINGSTARTED



CHANGINGTHEM300NODENUMBER

When you install QNX by default we use node 1 for the install. After the install, if necessary, you can

change the node number. If you have more than one system and would like to network them

together, then they all must have different node numbers. The largest node number must be less than

the total number of licenses you have. For example if you have 4 QNX licenses, then you can have

nodes 1, 2, 3 and 4. It’s not possible to setup nodes 1, 2, 5 and 6 even though this is still only 4

nodes.

Note: Thisentireprocessmustbedoneassuperuser.

1. Change directories to ‘/boot’ by typing cd /boot at the command prompt.

2. Copy the current ‘hard.node’ or ‘install.node’ file to a new ‘hard.newNode’ file. For example, say

we want to change the node number from 1 to 2, copy the ‘hard.1’ or ‘install.1’ file to a ‘hard.2’

file by typing cp /boot/build/hard.1 /boot/build/hard.2 at the command prompt.

3. Then edit the new file by typing vedit /boot/build/hard.2 at the command prompt, and

change the Proc32 line. The ‘-l 1’ option sets the node number. We want to have ‘-l 2’ instead

(see lines bellow).

Beforeedit

/boot/sys/Proc32

$ /boot/sys/Proc32 -l 1 -P 28

Afteredit

/boot/sys/Proc32

$ /boot/sys/Proc32 -l 2 -P 28

4. Run the ‘buildqnx’ command to rebuild the ‘.boot’ file by typing buildqnx /boot/build/

hard.2 /boot/images/hard.2

at the command prompt, or whatever node numbers you have

chosen. This creates the new boot image file.

5. If there was no problems during the build, copy this file to the ‘/.boot’ file by typing

cp /boot/

images/hard.2 /.boot

at the command prompt. This will overwrite the old boot

information. If using ‘/hd/.boot’ file instead to boot, you should copy to that file.

6. Restart the QNX system by typing

shutdown -f at the command prompt. If the SEA software is

installed, you can type

reboot to restart the system.

7. If the system hangs or fails to boot, turn off the power to the system and turn back on after

waiting approximately 10 seconds. When the prompt to perform an altboot comes up, hit ESC

and this will run the alternate booting configuration. Fix the problem with the ‘/.boot’ file and

try to boot again. If this still fails, contact SEA (See “Contacting SEA” in on page 15).

8. Once the system has booted, login as any user and verify the new node number by typing

sin in

at the command prompt. This should give you the new node number.