Sledgehammer is the component of Crowbar that we use as a bootstrapping

tool to perform initial node discovery and to register its discovered

state within the Crowbar node provisioning framework. After it has been

discovered Sledehammer can be controlled to prepare the hardward and to

lay down the operating system and to assure correct node configuration.

It consists of a slightly modified Centos 6.2 live environment. To build

Sledgehammer you need:

* A CentOS 6.2 install DVD from bittorrent or your favorite CentOS

mirror. This install DVD will need to go in $ISO_LIBRARY

(usually $HOME/.crowbar-build-cache/iso).

* Ruby, rpm, and rpm2cpio.

By default, the Crowbar build process will try and build Sledgehammer

if it is not already present in the build cache, so you should not

need to do anything special to build Sledgehammer. If you need to

update Sledgehammer, run the build_sledgehammer.sh script in the main

Crowbar checkout.

Execute;

#> sudo build_sledgehammer.sh

Output:

The build process creates an ISO image that will be emmbedded within an

initrd file. The initrd file and all controls needed to use it will be

installed into the $ISO_LIBRARY/tftpboot directory (see ~/.build-crowbar.conf.