A client that waits in ifup's foreground on a server's answer holds the
whole machine, because init starts the rest of the boot - sshd, forgectrl,
the console login - only after S01networking returns. A field machine sat
there forever on a router that refused DHCPv6 (the record is in the
meta-openglow commit that drops the DHCPv6 client). Nothing in the catalog
looked at the network boot path; this test does.
It asserts: wlan0 is in ifupdown's state file and no ifup is running; the
console getty is up; udhcpc runs with -b (it leaves ifup after three
unanswered discovers) and has been reparented to init; no DHCPv6 client is
named in /etc/network/interfaces, running, or on the image, and its hook
script is gone; IPv6 on wlan0 is the kernel's own - enabled, router
advertisements accepted, a link-local address up. A global address is
evidence only: a network whose router advertisement offers no SLAAC prefix
gives none. What a hostile server does to a client is a bench drill, not a
test.
covers is empty by design, as with setup.machine-name: the interfaces file
is layer content, in the platform identity of every fingerprint, so a
change there already makes every test necessary again.
Proven: the host tests for the parsers and the registration
(tests/test_image.py), and the whole host suite, 398 tests, under Linux.
The test's logic, run read-only on the bench reference against an image
that carries the client, fails exactly the four DHCPv6 checks and passes
every other one. The test fails on any image built from a meta-openglow
that still carries the client, so the kas lock moves to the layer head
that drops it.
The manifest lists the modules directory without the kernel's
LOCALVERSION_AUTO hash (the hash does not reproduce across a re-patch of
the same source, so the image manifest strips it). image.health still
compared the full running release against that list and failed on the
first post-flash run of image 20260902144848 with the kernel
6.12.20-fslc-fslc-g72a0b1431a9d against the manifest's 6.12.20-fslc-fslc.
kernel_ident() strips the same suffix from both sides, so a manifest with
or without the hash matches the running kernel, and a different base
release still fails. tests/test_image.py covers both forms.
Catalog consequence: only image.health's own implementation hash moves;
it is an always-run test, so no inherited result is affected.
ScottW514