podman build --security-opt=label=disable --cap-add=all \
                                     --device /dev/fuse -t localhost/fedora-bootc . -f testContainer
STEP 1/8: FROM registry.stage.redhat.io/rhel9/rhel-bootc:9.6
STEP 2/8: RUN rm -rf /etc/yum.repos.d/*
--> Using cache 2f24eb93b5b1c7375c7721ab33400fd9a3b43e89a71ddb41c2bec6779b84ba2e
--> 2f24eb93b5b1
STEP 3/8: COPY rhel.repo /etc/yum.repos.d/mycustom.repo
--> Using cache 7cf02a71dfd49b69d4189f15ded23bd0508ec1a32a71883e074b6478a865099d
--> 7cf02a71dfd4
STEP 4/8: RUN /usr/libexec/bootc-base-imagectl build-rootfs --manifest=minimal /target-rootfs
error: Executing compose install: Subprocess failed: ExitStatus(unix_wait_status(256))
note: --workdir is ignored for --unified-core
rpm-ostree version: 2025.6
Discovered rpm-md repositories:
- rhel-9.6-baseos
- rhel-9.6-appstream
- rhel-9.6-nfv
- rhel-9.6-highavailability
- rhel-9.6-fast-datapath
- rhel-9.6-server-ose-4.19
- rhel-9.6-early-kernel
error: Installing packages: Unknown rpm-md repository: baseosError executing command: Command '['rpm-ostree', 'experimental', 'compose', 'rootfs', '--source-root=/', '/usr/share/doc/bootc-base-imagectl/manifests/minimal.yaml', '/target-rootfs']' returned non-zero exit status 1.
Error: building at STEP "RUN /usr/libexec/bootc-base-imagectl build-rootfs --manifest=minimal /target-rootfs": while running runtime: exit status 1