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fix: a watched mint must move — unbuffer the dots, name the log after the box

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Operator watched /tmp/new.log through a claude mint and saw not one
message: cloud-init's progress dots are block-buffered the moment
stdout is not a tty, so a redirected mint shows nothing for the whole
install and then one burst — which reads exactly like a hang, on the
very night three real hangs happened.

PYTHONUNBUFFERED=1 on the cloud-init wait makes the dots arrive as
dots; box new also prints how to watch the box's own full narration
(incus exec <box> -- tail -f /var/log/cloud-init-output.log); and the
drill's logs are named for the box being minted (/tmp/mint-drill.log),
not for the verb that mints it.
This commit is contained in:
claude-hdb 2026-07-14 15:34:08 +00:00
parent 0c87911cb1
commit c033a26979
2 changed files with 14 additions and 9 deletions
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7
bin/box
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@ -599,6 +599,7 @@ cmd_new() {
"${extra[@]}"
wait_agent "$instance"
echo "box: waiting for phase-1 (cloud-init)..."
echo "box: (its full narration, live: incus exec $name -- tail -f /var/log/cloud-init-output.log)"
# A failed cloud-init used to print a screen of dots and the word "error",
# with nothing to act on — the box's own log holds the reason, and nobody
# was told it existed. Show it, and leave the box up to inspect.
@ -607,7 +608,11 @@ cmd_new() {
# drill), the session can wedge open after the remote command has exited,
# blocking forever on a websocket that will never close. Caught live: a
# mint stuck at 'status: done'. Only shell/exec/tmux may own the terminal.
if ! incus exec "$instance" -- cloud-init status --wait </dev/null; then
# PYTHONUNBUFFERED: cloud-init's progress dots are block-buffered the
# moment stdout is not a tty — a redirected mint (a script, the drill)
# shows NOTHING for the whole install and then one burst at the end,
# which reads exactly like a hang. Unbuffered, the dots arrive as dots.
if ! incus exec "$instance" -- env PYTHONUNBUFFERED=1 cloud-init status --wait </dev/null; then
echo >&2
echo "box: cloud-init FAILED in $name. What it says:" >&2
incus exec "$instance" -- cloud-init status --long </dev/null 2>&1 | sed 's/^/ /' >&2

16
drill/drill.sh
View file

@ -401,7 +401,7 @@ rm -rf "$badt"
printf '\n minting a blank box (the DEFAULT template — no tooling, fast)…\n'
t0=$SECONDS
if mint_box /tmp/tpl.log --name tpl; then
if mint_box /tmp/mint-tpl.log --name tpl; then
ok "box new --name tpl, no --template ($((SECONDS - t0))s)"
tt="$(incus config get tpl user.box.template 2>/dev/null)"
[ "$tt" = blank ] && ok "the default template is blank (user.box.template=blank)" \
@ -424,15 +424,15 @@ if mint_box /tmp/tpl.log --name tpl; then
|| no "blank box cannot resolve — DNS parity broken"
box rm tpl --force >/dev/null 2>&1 && ok "blank box removed" || no "could not remove the blank box"
else
no "blank mint FAILED — tail: $(tail -3 /tmp/tpl.log | tr '\n' ' ')"
no "blank mint FAILED — tail: $(tail -3 /tmp/mint-tpl.log | tr '\n' ' ')"
fi
printf '\n minting a claude box (cold, ~10 min)…\n'
t0=$SECONDS
if mint_box /tmp/new.log --name drill --template claude; then
if mint_box /tmp/mint-drill.log --name drill --template claude; then
ok "box new --name drill --template claude ($((SECONDS - t0))s)"
else
no "box new FAILED — tail: $(tail -3 /tmp/new.log | tr '\n' ' ')"
no "box new FAILED — tail: $(tail -3 /tmp/mint-drill.log | tr '\n' ' ')"
echo; echo "── cannot continue without a box"; printf ' %s\n' "${findings[@]}"; exit 1
fi
@ -486,11 +486,11 @@ box info archive | grep -q authed && ok "the snapshot followed the rename" || no
# --- clone from a snapshot of a renamed box --------------------------------
printf '\n cloning from the snapshot…\n'
if mint_box /tmp/clone.log --name clone --from archive/authed; then
if mint_box /tmp/mint-clone.log --name clone --from archive/authed; then
ok "new --from archive/authed (clone of a snapshot of a renamed box)"
box exec clone -- true >/dev/null 2>&1 && ok "the clone is alive and enterable" || no "the clone is not enterable"
else
no "clone FAILED — tail: $(tail -3 /tmp/clone.log | tr '\n' ' ')"
no "clone FAILED — tail: $(tail -3 /tmp/mint-clone.log | tr '\n' ' ')"
fi
# --- the escape hatch ------------------------------------------------------
@ -517,10 +517,10 @@ wait_box archive && ok "archive is back up (agent answering)" \
# Sibling isolation needs a sibling. Clone from the snapshot — fast, no cold mint.
printf '\n cloning a peer for the sibling probes…\n'
if mint_box /tmp/peer.log --name peer --from archive/authed && wait_box peer; then
if mint_box /tmp/mint-peer.log --name peer --from archive/authed && wait_box peer; then
ok "peer minted from archive/authed and answering"
else
no "peer clone failed or never answered — tail: $(tail -3 /tmp/peer.log | tr '\n' ' ')"
no "peer clone failed or never answered — tail: $(tail -3 /tmp/mint-peer.log | tr '\n' ' ')"
fi
# C1 — public egress (#15 A1; resolving the hostname also proves A5, gateway DNS)