Installation and Migration Guide

How to use the node customization scripts

Both script.cust and firstboot.cust are run during node installation if the corresponding file is located in the /tftpboot directory of the node's boot/install server. If you use a common version of script.cust and firstboot.cust across all the nodes in your SP system, then placing one or both of these files on the control workstation prior to installing any nodes will cause them to be copied and run on the boot/install server nodes (if you have configured boot/install servers) and, subsequently, to all nodes in your SP as they are installed.

To use the script.cust customization script, do the following tasks:

• Examine the sample script.cust file located in /usr/lpp/ssp/samples to determine whether any lines are appropriate to your installation.
• Copy the file to /tftpboot/script.cust on the control workstation and uncomment, edit, or add any necessary lines. Make sure you change the file's permissions to be "world-readable." If you forget to set the permissions properly, the script will not run.

To use the firstboot.cust customization script, do the following tasks:

• Examine the sample firstboot.cust file located in /usr/lpp/ssp/samples to determine whether any lines are appropriate to your installation.
• Copy the file to /tftpboot/firstboot.cust on the control workstation and uncomment, edit, or add any necessary lines. Make sure you change the file's permissions to be "world-readable." If you forget to set the permissions properly, the script will not run.

|The firstboot.cmds file contains a sample sysctl |procedure that can be called from firstboot.cust in restricted |root rcmd mode and secure remote command mode. It copies files from the |server (typically the control workstation) to the node. If you are |using AIX remote commands, the server must be authorized to issue remote |commands to the requesting node.

|To use this procedure, perform the following steps on the |server:

• |Edit the file to remove the comments from the remote command calls below |what you want to have executed during the node's |firstboot.cust processing. Add additional remote |command calls as required for your node customization.
• |Ensure that the firstboot.cmds file is loaded by sysctl by |editing /etc/sysctl.conf to include the |/usr/lpp/ssp/samples/sysctl/firstboot.cmds file.
• |Start and restart the sysctl daemon to reload this changed |procedure by issuing:

  |stopsrc -s sysctld
  | 
  |startsrc -s sysctld

• |Edit the firstboot.cust file that will be copied to the |node during installation. Invoke this procedure by adding the |following:

  |/bin/sysctl -L -h $SERVER copy_env_files

|Once the node is installed, or as part of |firstboot.cust, the remote command authorization files on the |node serviced by the non-control workstation boot/install server need to be |updated with the following changes:

|standard

|An entry for the boot/install server node host name in |/.rhosts

|k4

|An entry for the boot/install server node rcmd principal in |/.klogin

|dce

|An entry for the self-host and the spbgroot principal |for the boot/install server node