Creating network boot images to support only the defined clients and networks

You can create network boot images in the /tftpboot directory using the SMIT, or the command line interface.

When a SPOT resource is created, network boot images are created in the /tftpboot directory to support certain NIM operations.

NIM only creates network boot images to support clients and networks that are defined. If a new client is defined and there is no network boot image already created for it in the environment, then the boot image will not be created until either the SPOT is allocated to the client or a check operation is performed on the SPOT to rebuild the boot images.

When clients are removed from the NIM environment, boot images are not automatically removed. To remove boot images that are no longer necessary for a NIM environment, the list of required machine-network combinations in the environment must be rebuilt. The boot images must then be rebuilt for each SPOT.