105bef466a
Sanitized research log, build/reproducibility docs, DTS, kernel configs, patches, initramfs sources, bootchain migration plans and test logs. B5 direct boot PASS; B6 modem lifecycle in progress. No dumps, NV/EFS, vendor firmware or device identifiers included.
55 lines
2.2 KiB
Text
Executable file
55 lines
2.2 KiB
Text
Executable file
#!/bin/busybox sh
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# Aurora RAM boot USB1 — diagnostics + USB NCM gadget (static 172.16.42.1/24).
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# No block devices, no firmware, no radios. Never exits (failures leave the UART shell).
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/bin/busybox mkdir -p /proc /sys /dev /tmp /usr/bin /usr/sbin /sbin
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/bin/busybox --install -s
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mount -t proc proc /proc
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mount -t sysfs sysfs /sys
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mount -t devtmpfs devtmpfs /dev 2>/dev/null
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mount -t configfs configfs /sys/kernel/config
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log() { echo "[init] $*"; echo "[init] $*" > /dev/kmsg 2>/dev/null; }
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echo
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echo "=== AURORA RAM BOOT USB1 ==="
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uname -a
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echo "--- model"; cat /proc/device-tree/model; echo
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echo "--- cmdline"; cat /proc/cmdline
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echo "--- block devices (expected: none, eMMC disabled in DT)"; ls /sys/block
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usb_up() {
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for i in $(seq 1 50); do
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udc=$(ls /sys/class/udc 2>/dev/null | head -1)
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[ -n "$udc" ] && break
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sleep 0.2
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done
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echo "--- /sys/class/udc:"; ls -l /sys/class/udc 2>&1
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if [ -z "$udc" ]; then log "NO UDC found - USB gadget skipped"; return 1; fi
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# DEVELOPMENT-ONLY IDs (same dev setup as JZ02: Google 18d1:d001) - not for production
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G=/sys/kernel/config/usb_gadget/aurora
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mkdir -p $G || return 1
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echo 0x18d1 > $G/idVendor
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echo 0xd001 > $G/idProduct
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mkdir -p $G/strings/0x409
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echo "Aurora" > $G/strings/0x409/manufacturer
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echo "Aurora RAM Boot" > $G/strings/0x409/product
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echo "<EMMC_SERIAL>" > $G/strings/0x409/serialnumber
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mkdir -p $G/functions/ncm.usb0 || { log "ncm function create FAILED"; return 1; }
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mkdir -p $G/configs/c.1/strings/0x409
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echo "NCM" > $G/configs/c.1/strings/0x409/configuration
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ln -s $G/functions/ncm.usb0 $G/configs/c.1/
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echo "$udc" > $G/UDC || { log "bind to UDC '$udc' FAILED"; return 1; }
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log "usb gadget bound to UDC '$udc'"
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ifc=$(cat $G/functions/ncm.usb0/ifname 2>/dev/null)
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log "ncm ifname='$ifc' dev_addr=$(cat $G/functions/ncm.usb0/dev_addr) host_addr=$(cat $G/functions/ncm.usb0/host_addr)"
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[ -n "$ifc" ] || return 1
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ip link set lo up
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ip addr add 172.16.42.1/24 dev "$ifc"
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ip link set "$ifc" up
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ip addr show "$ifc"
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log "network: $ifc 172.16.42.1/24 up (static, no DHCP)"
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}
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usb_up || log "USB/NCM setup incomplete - staying on UART shell"
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echo "=== entering shell (exit restarts it) ==="
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while true; do
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setsid cttyhack sh
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echo "shell exited, restarting"; sleep 1
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done
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