Dr Les Oswald wrote:
Googling revealed many different scenarios with this boot error message,
some suggesting a memory error - Oh Joy, these two machines have 64GB
RAM each.
Login to the ILO and checked the integrated management log for
errors? It does sound like a hardware issue.
Forgot to reply on this one & had a query from user since - fixed
by simply reverting to previous kernel. No further problems. In
conclude that its been caused by kernel upgrade and was unlikely to be
hardware as both nodes were affected instantly after applying the
upgrade.