I have installed a new OES2 server using the documentation regarding the use of EVMS and NSS, it all worked okay and I created my NSS pool and volume. After a couple of days I have restared the server and there is no OS to boot to. This is the second time it has happened to me. When I boot to the rescue option on the DVD /boot is empty, what am I doing wrong?

HP DL380G5
/boot lvms2
/swap evms
/sys_linux evms
/data NSS