Using the extra-manifests files included in https://github.com/openshift-kni/cnf-features-deploy/tree/master/ztp/source-crs/extra-manifest  to perform an IBI installation, the IBI Operator will report an error generating the boot ISO:

$ oc logs -n multicluster-engine image-based-install-operator-55f7559894-lwcvp -c server|tail -5 time="2024-12-23T14:50:58Z" level=error msg="failed to create iso" func="github.com/openshift/image-based-install-operator/internal/imageserver.(*Handler).ServeHTTP" file="/remote-source/app/internal/imageserver/imageserver.go:85" error="unable to calculate size of directory for extra-manifests: could not calculate child extra-manifests/01-container-mount-ns-and-kubelet-conf-master.yaml entry size extra-manifests: could not convert dirEntry to bytes: invalid filename 01_CONTAINER_MOUNT_NS_AND_KUBELET_CONF_MASTER.YAML;1: file name must be at most 30 characters, not including the separator '.'"

This is due to the limit on filename length in the ISO standard. Truncating the extra-manifests file names fixes this problem.

OCP 4.18, ACM 2.13, all versions of ZTP container image

    always

 1. Install hub with OCP 4.17, ACM 2.12 MCE 2.7.2, siteconfig operator, IBIO.
2. Create spoke cluster config using the default ZTP siteconfig, including extra-manifests, from https://github.com/openshift-kni/cnf-features-deploy/tree/master/ztp
3. install spoke cluster using IBI3. pre-install succeeds
4. IBi continues with spoke deployment. All manifests from templates are rendered successfully.
5. ironic attempts to power-on spoke. Server powers-on, then powers-off
6. ICI times out.
7. IBIO pod logs from server container indicate that config image generation fails due to the 30 character limit on filenames.

    IBI Fails

    IBI works with ZTP

    See docs bug https://issues.redhat.com/browse/TELCODOCS-2152