Install tool dependencies by running:

sudo ./bootstrap

This will install the needed RPMs, pkg repos, and Python modules.

You need to have a working CentOS 7 ISO, I think any will do. Currently, the script doesn't do any smart caching, simply downloads all needed RPMs using yum. If you're tight on bandwidth, you might setup a caching proxy server.

Run the master_iso.sh script and give it the path to your source ISO, then optionally the the output filename. Note that this script does not require root privileges, but your user account does need to be in the mock group to run that tool.

Example:

sudo ./master_iso.sh ./CentOS-7-x86_64-Everything-1511.iso rocknsm-20161101.iso

The offline-snapshot.sh script allows you to generate an offline snapshot. This tool is used during the ISO creation, but it is also useful for creating a yum repository so that you can update offline sensor packages. To run it, simply run

./offline-snapshot.sh [/optional/path/to/dir]

If you specify a path, it will create the file structure there. If not, it will default to rock_cache in the current directory of the script.

If you would like some additional packages for your custom ISO or offline-snapshot repo, you can add packages by name or groups (using '@' syntax), one per line. This will not install them by default, but they will exist in the repository for installation in an offline environment.