UEFI machines were given syslinux.efi, which is unsigned: with Secure
Boot on (the default on much server hardware) the firmware refuses it
("Access Denied", seen on an OVMF lab VM), so such a machine could not
PXE-boot at all. They now get Debian's signed shim (bootx64.efi), which
loads the signed network GRUB (grubx64.efi); GRUB reads
grub/grub.cfg-<mac>, else grub/grub.cfg-default, and loads kernels
only as shim verifies them. Rack controllers write the GRUB menus from
the pxelinux menus they already get (same entries: kernel and initrd,
local disk via exit, power off via halt), so both always agree; BIOS
machines keep pxelinux. install.sh, install-rack.sh and bootstrap.sh
install shim-signed and grub-efi-amd64-signed and lay out the files.
Secure Boot covers the kernel; the initrd and the squashfs it fetches
are not covered by it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Findings from a full review (auth/API, CA and rack channel, config
generation, integrations, UI/agents/scripts), each verified in code:
- rack binary endpoint read any region file via arch=../.. (CA key)
- render endpoint traversal; machine-reported MACs used as file paths
- delegated intermediates could mint admin/rack identities and IPs;
identities now require root-issued certs, intermediates are
ServerAuth-only with both name types constrained
- rack certs were ServerAuth for rack-chosen SANs: now client-only;
racks accept only the region's own cert; join checks the CA
fingerprint; unbound join codes cannot take an existing name; job
results bound to the rack that took them
- rack self-update: region signs binaries with the CA key, the root
unit verifies against the join-time CA in a root-owned dir
- dnsmasq reads a checked, root-owned copy limited to generated options
- commissioning could overwrite deployed machines; MAC takeover of PXE
- injection into dnsmasq/cloud-init/PXE/udev/DNS via names and
machine-reported strings; stored XSS in the UI; CSP and cross-origin
protection; deploy agent shell injection and seed traversal
- Redfish requests confined to the BMC's /redfish/ tree
- admin_http defaults to loopback; body limits and timeouts; secrets
off command lines
Also: IPAM claim/reconcile race, sync stopping on one error, watchdog
race, release wiping the wrong disk, SAN LUNs as auto targets.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A VLAN in proxy mode leaves addresses to the site's DHCP server; the rack
only answers PXE (dnsmasq proxy range + pxe-service), machines keep DHCP
unless a static range is set aside. CLI -proxy-dhcp, web UI mode select,
bootstrap --proxy-dhcp, doctor/discover aware.
dnsmasq 2.91 (and 2.93) loops forever in its proxy path when the proxy
range carries a set: tag: option_filter appends a request's tags to the
context's persistent list, so the next request's stack interface tag
points at itself (found with gdb on the lab rack). Proxy ranges are
untagged and PXE services limited by interface; dhcp-boot/dhcp-match only
for served subnets; no dhcp-host lines for proxied ones.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
INSTALL.md follows a clean run from day 0 to a deployed machine.
Release assets now include rollcall-<tag>-linux-<arch>.tar.gz (binary,
deploy/, agent/). deploy/publish-image.sh uploads a region's commissioning
image to a release (commissioning-*); bootstrap.sh downloads either layout,
with IMAGE_TOKEN for private repositories. bootstrap: --ssh-key (default:
the operator's keys), keeps server_url on reruns without --iface.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bootstrap.sh no longer needs the provisioning network: it installs and
starts the region on the management address; --iface later models the
subnet, serves DHCP and moves server_url. rollcall net discover shows what
each interface sees (LLDP, DHCP servers via a parallel probe, neighbours)
and suggests the next step. commission_append follows server_url. Doctor
treats a host that serves no DHCP yet as day 0. Fixes found on a clean VM:
os-release clobbered the rack name, install.sh not executable, slow DHCP
offers missed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bootstrap.sh sets up a region on a fresh Debian 13 host (packages,
PostgreSQL, TFTP tree, config, services, verified commissioning image,
provisioning subnet with ranges/DHCP, optional NAT, first OS image).
rollcall doctor checks an installation and says what to fix, including a
DHCPDISCOVER probe for foreign DHCP servers. pxelinux-default no longer
hard-codes the lab address.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
