Jonathan Lebon jlebon

Switch to a dev branch and enable initrd regeneration:

ostree commit -b dev --fsync=no --tree=ref=$booted_commit
rpm-ostree rebase :dev
rpm-ostree initramfs --enable
reboot

Updating files:

Download RHCOS 4.1 from the RHCOS release browser (qemu qcow2) or the mirror (metal BIOS or UEFI image).
Write a spec v2 Ignition config that sets the password for core to e.g. changeme:

{
  "ignition": {
    "config": {},
    "security": {
      "tls": {}
    },
    "timeouts": {},

( O)> using the docs in this repo, what is the machine config operator?
I'll start by searching the documentation for "Machine Config Operator" to understand what it is.
─── shell | developer ──────────────────────────
command: rg "Machine Config Operator" -l



Okay, many files. I'll check `modules/understanding-machine-config-operator.adoc` and `modules/machine-config-operator.adoc` first, starting with the former.
─── text_editor | developer ──────────────────────────

	{
	"ignition": {
	"version": "2.2.0"
	},
	"storage": {
	"files": [
	{
	"filesystem": "root",
	"path": "/etc/udev/rules.d/39-redhat.rules",
	"mode": 420,

	{
	"ref": "fedora/x86_64/coreos/testing",
	"ostree-n-metadata-total": 8363,
	"ostree-n-metadata-written": 2800,
	"ostree-n-content-total": 4836,
	"ostree-n-content-written": 241,
	"ostree-n-cache-hits": 15054,
	"ostree-content-bytes-written": 120538393,
	"ostree-commit": "f482e2f1870124abf1f0094b7fcc66f86db8394a4096e1e66984b80178e84b34",
	"ostree-content-checksum": "ca63ec06f384ec21076be1f0f14c6c80fdaaf7edd1d862733942cd46c2541a88",

	Start the container using at least these switches:

	(host) podman run -ti \
	--privileged \
	--pid=host \
	-v /:/host \
	--name gdb \
	--detach-keys=ctrl-t \
	registry.fedoraproject.org/fedora:32 /bin/bash

	NAME="Red Hat Enterprise Linux CoreOS"
	VERSION="9.4.202409221629-0 (Plow)"
	ID="rhel"
	ID_LIKE="fedora"
	VERSION_ID="9.4"
	PLATFORM_ID="platform:el9"
	PRETTY_NAME="Red Hat Enterprise Linux CoreOS 9.4.202409221629-0 (Plow)"
	ANSI_COLOR="0;31"
	LOGO="fedora-logo-icon"
	CPE_NAME="cpe:/o:redhat:enterprise_linux:9::baseos"

	```
	$ podman run --rm -ti docker://$(oc adm release info --image-for=rhel-coreos quay.io/openshift-release-dev/ocp-release:4.19.8-x86_64) cat /etc/passwd
	root:x:0:0:Super User:/root:/bin/bash
	containers:x:993:995:User for rootless containers:/nonexistent:/sbin/nologin
	```

	{
	"ignition": {
	"config": {},
	"security": {
	"tls": {}
	},
	"timeouts": {},
	"version": "3.0.0"
	},
	"passwd": {