I managed to solve the problem with guestfish and the help of this page http://manpages.ubuntu.com/manpages/precise/man1/guestfish.1.html



On 6 June 2017 at 22:07, Maton, Brett <matonb@ltresources.co.uk> wrote:
I'm pretty sure that I've got a failing (to boot) kernel on my Self hosted engine, as this has happened a few times on 'regular' guest VM's

  I've tried getting it to boot from (several) CD Image, but there is no VNC console and hosted-engine --console just hangs at Escape character is ^]

Any suggestions ?

I know which LVM is the hosted engine disk but I don't know how to mount it from the physical host, If I could mount it I could probably switch the kernel back to an earlier one.

All else fails I have a back up of the engine taken this morning, but I seem to recall having problems re-deploying hosted-engine when one already exists in the cluster (dead or not)

Regards,
Brett