Both nodes load the hp-bioscfg driver, exposing 215 BIOS attributes read/write at /sys/class/firmware-attributes/. No BIOS passwords are set, so they are writable FROM THE OS. RULED OUT as the cause of node 2's 2.6 GiB limit: firmware inventory is correct (BIOS itself reports Memory Size=16384 MB); no memory-remap/above-4G attribute exists on this platform at all; MTRRs are effectively identical with no trim warning; /proc/iomem registers the full 100000000-42f7fffff as System RAM and 127 memory blocks report online. REAL DIFFERENCES FOUND (node1 works / node2 broken): After Power Loss Power On / Power Off <- VIOLATES this document's own §1 Fast Boot Disable / Enable <- leading hypothesis Legacy Boot Options Disable / Enable TPM Activation Policy F1 to Boot / Allow user to reject MS+Windows UEFI CA 2023 Enable / Disable Leading hypothesis: HP Fast Boot reuses CACHED MEMORY-TRAINING DATA rather than retraining each boot. A DIMM fitted while Fast Boot was on is a plausible route to memory being present, inventoried, handed to the kernel — and then reserved. It is also the only memory-relevant setting differing from the working node. NOT TESTED: changing it is a firmware write plus a reboot and needs operator sanction. BROADER FINDING for T-7.1: the §1 firmware checklist is now MACHINE-CHECKABLE rather than an eyeball-at-F10 exercise, and machine-ENFORCEABLE too. That is precisely how node 2 came to have After Power Loss=Power Off while node 1 has Power On — nobody could see the drift. Follow-up recorded: extend node_health to assert the firmware checklist, add a role to converge it. Raw BIOS dumps deliberately NOT committed — they carry serials, UUIDs and MAC addresses, same reason node-health artifacts are gitignored. Only the findings are recorded. Serves: R-ENV-03. Task: T-7.1.
infra/ — node provisioning and the toolchain
OpenTofu (Proxmox VE) + cloud-init + Ansible bring up the 3-node k3s/Cilium dev cluster.
Spec: ../home-network-k3s/docs/02-environments-and-provisioning.md.
| Path | What |
|---|---|
tofu/ |
The "Create" stage: 3 cloud-init'd VMs on the Proxmox box (bpg/proxmox provider) |
cloud-init/ |
First-boot baseline shipped as a Proxmox user-data snippet |
ansible/ |
The "Baseline"/"Configure" stages: k3s HA, Cilium, kube-vip, the VPN egress gateway |
devcontainer/ |
The pinned toolchain (tofu, ansible, sops, age, flux, kubectl, helm and the whole CI gate toolchain) |
cluster.sh |
RETIRED — drove the old libvirt VMs; does not work against Proxmox |
PHASE1-STATUS.md |
Current state of the cluster and how to reconnect to it |
PHASE1-SCOPE.md |
Historical Phase-1 scoping doc (libvirt era — superseded) |
Where the cluster actually lives
The dev cluster is not on this workstation. It runs on a Proxmox VE host; the nodes sit on the Proxmox LAN and are reached across a pfSense NAT:
| Nodes | k3s-dev-1/2/3 at 192.168.1.50/.51/.52 — 6 vCPU, 24 GiB, Debian 13, k3s v1.36.4 |
| kube-API | kube-vip VIP 192.168.1.49:6443, reached from the workstation via NAT 192.168.2.50:6443 |
| Node SSH | pfSense NAT 192.168.2.102:2250/2251/2252 → node :22 (Ansible only) |
| Ingress VIP | 192.168.1.53 (Cilium L2, shared Gateway); .53–.60 reserved for LB VIPs |
The earlier libvirt/KVM cluster on 10.73.0.0/24 is retired. Any doc or command referencing
virsh, qemu:///system, or 10.73.0.x for the cluster is historical.