Step 3.5 complete: model vr1-dc0 created (credential vr1-dc0-cred), spaces gate PASS
0 fatal, apt-mirror verified at http://10.12.8.4/ubuntu. Spaces script run from the
07-30 staged copy on the rack, all three files sha256-verified against the repo first.

Blocker found by dc-mirror.sh check dc0 -- the content-assertion fix from 2026-07-27
earning its keep. The rack cannot reach archive.ubuntu.com, streams.canonical.com,
api.snapcraft.io via the snap proxy, 1.1.1.1, or its own default gateway 10.12.4.1.
ip neigh shows 10.12.4.1 FAILED while .5 and .6 on the same segment answer. The edge
VM is running with both NICs attached, qga not connected, qemu log last written at the
reboot. Last successful mirror sync predates it. Step 4 cannot proceed: the deploy
needs the juju agent stream and snap upstream, both dead.

Two gaps exposed: no gate anywhere tests DC egress (dc-rack-net check passes with it
dead), and this session's own post-reboot verification cited five true facts none of
which tested egress -- a listener is not a path, and a 200 from a local service says
nothing about upstream.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf