Lustre can be built from source in a number of configurations. The following walk-thrus are provided:

• Walk-thru- Build Lustre 1.8 on CentOS 5.5 or 5.6 from Whamcloud git
• Walk-thru- Build Lustre MASTER on RHEL 6.3 from Whamcloud git

There is an additional page that describes building a Lustre client from SRPM for a new kernel:

Rebuilding the Lustre-client rpms for a new kernel