buildextend-live: drop legacy embed headers

[bgilbert]

coreos-installer now knows how to locate ignition.img and kargs.json directly in the ISO 9660 filesystem, so we don't need the custom coreiso+ and coreKarg headers anymore.

Requires coreos/coreos-installer#622 to land in a coreos-installer release and ship in Fedora CoreOS for a reasonable period of time.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[bgilbert]

/retest

[bgilbert]

We should add a new coreos-installer test fixture once this lands.

[bgilbert]

/test all

[bgilbert]

/retest

[dustymabe]

     --- FAIL: non-exclusive-test-bucket-0/ext.config.shared.networking.default-network-behavior-change (1.82s)
            harness.go:959: kolet failed: : kolet run-test-unit failed: Error: Unit kola-runext-38.service exited with code 1 

Should be fixed by coreos/fedora-coreos-config#1511 when that filters down to RHCOS right?

[cgwalters]

rhcos CI is broken until openshift/os#714 (comment) is done

[cgwalters]

/override ci/prow/rhcos

[openshift-ci]

@cgwalters: Overrode contexts on behalf of cgwalters: ci/prow/rhcos

Details

In response to this:

/override ci/prow/rhcos

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[bgilbert]

/retest

[bgilbert]

/test all

[bgilbert]

/retest

[bgilbert]

/retest

[bgilbert]

openshift/os#714 and openshift/release#26193 both merged, but RHCOS CI is still failing.

[bgilbert]

/retest

[bgilbert]

Ready for review!

[jlebon]

🎉

[bgilbert]

ext.config.shared.networking.default-network-behavior-change is still broken.

/override ci/prow/rhcos

[openshift-ci]

@bgilbert: Overrode contexts on behalf of bgilbert: ci/prow/rhcos

Details

In response to this:

ext.config.shared.networking.default-network-behavior-change is still broken.

/override ci/prow/rhcos

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.