8d7721c775
B7A: QMI DMS time vs VNIIFTRI NTP (DMS = UTC - 0.28 s, sigma 1 ms; NITZ = DMS truncated to 1 s). B7B: a 1970 -> 2026 date -s step is harmless for the modem stack. B7C: aurora-modem probes DMS/NITZ along the start flow and steps CLOCK_REALTIME once at the first valid sample (REG registered/attached), never RTC; background SNTP check (query only) after START OK. 3/3 class-A cold boots PASS (residual +0.04/+0.36/+0.84 s), cache 14fe453a written (B7C_WRITE_VERIFIED) and verified by a normal power-on (V1, +0.26 s). Also publishes the prerequisite R2 (boot-hang / lk eMMC investigation, T4 telnet baseline that B7C builds on) and R3 (autonomous cold boot, NCM loss) material, and extends tools/publish-sanitize.py to r2/, r3/, b7/. Binary images, initramfs, busybox and raw logs stay out (see b7/*/SHA256SUMS).
12 lines
838 B
Bash
Executable file
12 lines
838 B
Bash
Executable file
#!/bin/bash
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# R2/T4 rollback — restore the B6P cache (9fea693a, operational since 2026-10-01). Needs 9008 via HW EDL (D+->GND). boot/aboot untouched.
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# Deeper rollback: b6p/B6P-rollback.sh (B5b golden mm1, 409bbb11).
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cd ~/doc/modem/jz08-aurora || exit 1
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L=firehose/007050e100000000_394a2e47cf830150_fhprg_peek.bin ; O=logs/r2/t4/rollback ; mkdir -p $O
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B=b6p/cache-extlinux-b6p.img
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[ "$(sha256sum $B | cut -d' ' -f1)" = 9fea693a436b49ca56aed0857725ecdde8a0071700cf5d23b02dab9d9ff406b7 ] || { echo "STOP: rollback image hash"; exit 1; }
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lsusb | grep -q 05c6:9008 || { echo "STOP: no 9008"; exit 1; }
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edl --loader=$L printgpt > $O/00-printgpt.log 2>&1
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edl --loader=$L w cache $B > $O/cache-w.log 2>&1
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edl --loader=$L r cache $O/cache-rb.bin > /dev/null 2>&1 ; cmp $B $O/cache-rb.bin && echo CACHE_RESTORED_B6P
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sha256sum $B $O/cache-rb.bin
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