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launch: set system time to 2026-10-09 on boot (no battery RTC)

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1okko
2026-10-09 22:46:19 +08:00
parent 77a1d63dde
commit ee69034e3e
2 changed files with 9 additions and 32 deletions
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launch_env.sh
+9
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@@ -26,3 +26,12 @@ export STREAM=1
export STREAM_PORT=8082
export STREAM_QUALITY=50
export STREAM_FPS=10
# --- system time (this hardware has no battery-backed RTC) ---
# Every boot the clock starts at 1970, which breaks TLS: the model list and downloads fail
# with "certificate is not yet valid" until NTP or GPS catches up. Seed a recent date so TLS
# works from the start; NTP/GPS correct it to the second afterwards.
if [ "$(date +%Y)" -lt 2020 ]; then
sudo date -s "2026-10-09 12:00:00" >/dev/null 2>&1
printf 'seeded %s (was < 2020)\n' "$(date -Is)" >> /data/time_seed.log 2>/dev/null
fi
launch_openpilot.sh
-32
View File
@@ -11,38 +11,6 @@ echo -n "1" > /data/params/d/IsMetric
# --- system time ---------------------------------------------------------------
# This hardware has no battery-backed RTC: every boot starts at 1970, so TLS fails
# ("certificate is not yet valid") and the model list/download cannot succeed until
# NTP or GPS catches up. Restore the last known time from /data (persists across
# reboots) so TLS works right away; NTP/GPS correct it to the second afterwards.
TIME_SNAPSHOT=/data/time_snapshot
if [ -f "$TIME_SNAPSHOT" ]; then
SAVED_TIME=$(cat "$TIME_SNAPSHOT" 2>/dev/null || echo 0)
NOW_TIME=$(date +%s)
# only when the clock is bogus (before 2020) and the snapshot looks sane (after 2020)
if [ "$NOW_TIME" -lt 1577836800 ] && [ "${SAVED_TIME:-0}" -gt 1577836800 ]; then
if sudo date -s "@$SAVED_TIME" >/dev/null 2>&1; then
echo "[time] restored from snapshot: $(date)"
printf 'restored %s from %s\n' "$(date -Is)" "$SAVED_TIME" >> /data/time_seed.log 2>/dev/null
fi
fi
fi
# keep the snapshot fresh so the next boot starts close to the real time.
# Only write a plausible, non-decreasing time: right after boot the clock is still 1970 (or the
# stale value from the previous unsynced boot), and saving that would poison the next boot.
(
while true; do
NOW=$(date +%s)
OLD=$(cat "$TIME_SNAPSHOT" 2>/dev/null || echo 0)
if [ "$NOW" -gt 1577836800 ] && [ "$NOW" -ge "$OLD" ]; then
printf '%s\n' "$NOW" > "$TIME_SNAPSHOT.tmp" 2>/dev/null && mv "$TIME_SNAPSHOT.tmp" "$TIME_SNAPSHOT" 2>/dev/null
fi
sleep 300
done
) &
# Force device timezone to Asia/Shanghai (Beijing)
sudo ln -sf /usr/share/zoneinfo/Asia/Shanghai /data/etc/localtime
sudo sh -c 'echo Asia/Shanghai > /data/etc/timezone'