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OpenHPC within Openstack issue

Hello guys,

I'm trying to install the OpenHPC (1.1) cluster management tool within an Openstack Liberty environment, but I have a problem when a "compute node" instance PXE boots from the "head node" instance. I have made the required changes to make DHCP and TFTP work in a private network, but the problem seems to exist during the disk partition stage. OpenHPC is meant to partition the root disk, make it bootable and then it switches to root and boots into that node. The problem is that the mkbootable stage is skipped and then the switching to root part fails. I have also tried to partition and boot from a volume but it fails as well.

The problem may not be 100% relevant here, but any suggestions will be appreciated, in case someone has tried/seen this before.

Thanks, Konstantinos