ea6f846021
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.
72 lines
2.6 KiB
Bash
72 lines
2.6 KiB
Bash
#!/bin/sh
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# Init for provisioning initramfs: bring up minimal env and run provisioning-client.sh.
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# PROVISIONING_SERVER can be set via kernel cmdline: provisioning_server=http://10.20.50.1:5000
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set -e
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export PATH=/bin:/usr/bin
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export LD_LIBRARY_PATH=/lib
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echo "=== CM4 provisioning initramfs ==="
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# Revision is set at build time; cat /revision.txt to confirm you have the latest initrd on TFTP
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[ -f /revision.txt ] && echo "Revision: $(cat /revision.txt)" || echo "Revision: (none)"
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# Minimal filesystem
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mount -t proc none /proc
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mount -t sysfs none /sys
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mount -t devtmpfs none /dev
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mkdir -p /dev/pts
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mount -t devpts none /dev/pts
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# Bring up eth0 (bootloader used it for TFTP but kernel starts with it down)
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echo "Bringing up eth0..."
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ip link set lo up 2>/dev/null || true
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ip link set eth0 up 2>/dev/null || true
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# Wait for link (PHY negotiation takes a few seconds after ip link set up)
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echo "Waiting for link..."
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for _ in 1 2 3 4 5 6 7 8 9 10; do
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ip link show eth0 2>/dev/null | grep -q 'LOWER_UP' && break
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sleep 1
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done
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# Get DHCP lease (foreground with retries; -q exits after obtaining lease)
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if ! ip addr show eth0 2>/dev/null | grep -q 'inet [0-9]'; then
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echo "Getting DHCP lease..."
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udhcpc -i eth0 -q -T 5 -t 5 -n -s /usr/share/udhcpc/default.script 2>&1 || echo "udhcpc failed (will retry)"
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fi
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# /tmp for client_ip (so client can read IP without running ip/awk)
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mkdir -p /tmp
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mount -t tmpfs none /tmp 2>/dev/null || true
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# Allow kernel cmdline to override: provisioning_server=... and rescue mode
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RESCUE=0
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for arg in $(cat /proc/cmdline); do
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case "$arg" in
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provisioning_server=*) export PROVISIONING_SERVER="${arg#*=}"; ;;
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provisioning_rescue=1) RESCUE=1; ;;
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esac
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done
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PROVISIONING_SERVER="${PROVISIONING_SERVER:-http://10.20.50.1:5000}"
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export PROVISIONING_SERVER
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if [ "$RESCUE" -eq 1 ]; then
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echo "=== RESCUE MODE (provisioning_rescue=1) ==="
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echo "Run /rescue-eeprom.sh to mount eMMC and change boot order (rpi-eeprom-config), then reboot."
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# Ensure shell I/O goes to serial console (some setups drop output otherwise)
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[ -c /dev/console ] && exec </dev/console >/dev/console 2>&1
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exec /bin/sh -i
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fi
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echo "Provisioning server: $PROVISIONING_SERVER"
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# Capture eth0 IP; retry in case DHCP is still completing
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for _ in 1 2 3 4 5; do
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ip addr show dev eth0 2>/dev/null | awk '/inet [0-9]/ { print $2; exit }' | cut -d/ -f1 > /tmp/client_ip 2>/dev/null || true
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[ -s /tmp/client_ip ] && break
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echo "Waiting for IP on eth0..."
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sleep 2
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done
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echo "Client IP: $(cat /tmp/client_ip 2>/dev/null || echo '(none)')"
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echo "Running provisioning client..."
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exec /bin/sh /provisioning-client.sh
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