Files
reterminal-dm4/emmc-provisioning/network-boot-initramfs/provisioning-client.sh
nearxos ea6f846021 Improve network boot troubleshooting documentation and initramfs scripts
Update NETWORK-BOOT-TROUBLESHOOTING.md to clarify the boot process and emphasize the need to disable PXE before rebooting to ensure EEPROM updates are applied. Enhance initramfs scripts to improve DHCP lease acquisition and capture the device's IP address more reliably. Add a revision tracking feature to the initramfs build process for better version control. Modify provisioning-client.sh to ensure proper reboot handling after deployment and backup actions.
2026-02-21 12:57:26 +02:00

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#!/bin/sh
# POSIX sh version for initramfs. Registers with dashboard and runs Deploy or Backup.
# PROVISIONING_SERVER must be set (e.g. http://10.20.50.1:5000).
BASE_URL="${PROVISIONING_SERVER:-http://10.20.50.1:5000}"
BASE_URL="${BASE_URL%/}"
EMMC_DEV="${EMMC_DEV:-/dev/mmcblk0}"
get_mac() {
cat /sys/class/net/eth0/address 2>/dev/null || \
cat /sys/class/net/enp0s1f0/address 2>/dev/null || \
echo "unknown"
}
get_ip() {
# Prefer IP captured by init; fallback to ip (match "inet 1.2.3.4/..." to skip inet6)
if [ -f /tmp/client_ip ] && [ -s /tmp/client_ip ]; then
cat /tmp/client_ip
return
fi
ip addr show dev eth0 2>/dev/null | awk '/inet [0-9]/ { print $2; exit }' | cut -d/ -f1
}
MAC=$(get_mac)
IP=$(get_ip)
echo "Registering with $BASE_URL (MAC=$MAC IP=$IP)..."
curl -s -X POST -H "Content-Type: application/json" \
-d "{\"mac\":\"$MAC\",\"ip\":\"$IP\"}" "$BASE_URL/api/register-device" || true
echo "Polling for action (Backup or Deploy)..."
while true; do
resp=$(curl -s "$BASE_URL/api/device-action-poll?mac=$MAC" 2>/dev/null || echo '{"action":"wait"}')
action=$(echo "$resp" | grep -o '"action":"[^"]*"' | cut -d'"' -f4)
url=$(echo "$resp" | grep -o '"url":"[^"]*"' | cut -d'"' -f4)
upload_url=$(echo "$resp" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4)
if [ "$action" = "deploy" ] && [ -n "$url" ]; then
echo "Deploy: downloading image and writing to $EMMC_DEV..."
if [ ! -b "$EMMC_DEV" ]; then
echo "Error: $EMMC_DEV not found"
sleep 10
continue
fi
curl -sL "$url" | dd of="$EMMC_DEV" bs=4M conv=fsync 2>&1
sync
echo "Deploy done. Disabling network boot on server so device boots from eMMC next time."
curl -s -X POST "$BASE_URL/api/action-done?mac=$MAC" || true
echo "Rebooting in 3 seconds..."
sleep 3
reboot -f 2>/dev/null || echo b > /proc/sysrq-trigger
sleep 60
fi
if [ "$action" = "backup" ] && [ -n "$upload_url" ]; then
echo "Backup: reading $EMMC_DEV and uploading..."
if [ ! -b "$EMMC_DEV" ]; then
echo "Error: $EMMC_DEV not found"
sleep 10
continue
fi
dd if="$EMMC_DEV" bs=4M 2>/dev/null | curl -s -X POST -T - "$upload_url"
sync
echo "Backup done. Disabling network boot on server."
curl -s -X POST "$BASE_URL/api/action-done?mac=$MAC" || true
echo "Rebooting in 3 seconds..."
sleep 3
reboot -f 2>/dev/null || echo b > /proc/sysrq-trigger
sleep 60
fi
if [ "$action" = "reboot" ]; then
echo "Rebooting..."
reboot -f 2>/dev/null || echo b > /proc/sysrq-trigger
sleep 60
fi
sleep 5
done