It looks like isolinux.bin isn't in the ironic container? so image failed: [Errno 2] No such file or directory: '/usr/lib/syslinux/isolinux.bin''" level=error level=error msg=" on ../../../tmp/openshift-install-339582206/masters/main.tf line 1, in resource \"ironic_node_v1\"
Moving to 4.7 as its a nice to have, we have a fix ready for openshift just currently trying to establish if its needed upstream.
Upstream patch here, will submit to openshift once it merges https://github.com/metal3-io/ironic-image/pull/199
The upstream patch is merged and the downstream one is open: https://github.com/openshift/ironic-image/pull/106/files
verified on 4.7.0-0.nightly-2020-11-28-014852
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5633