5238d457e8
Modify the first-boot script and documentation to set the EEPROM boot order to 0xf21, prioritizing eMMC boot followed by network boot. Adjust network boot settings for faster failure on DHCP timeouts and update related scripts and documentation to reflect these changes. Enhance the rescue script to directly modify EEPROM settings without requiring a chroot into eMMC, streamlining the recovery process for devices stuck in network-only boot. Update relevant documentation to ensure clarity on the new boot order and its implications.
73 lines
2.7 KiB
Bash
73 lines
2.7 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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# Based on Alpine Linux aarch64 with Python 3 and rpi-eeprom-config.
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set -e
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export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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export LD_LIBRARY_PATH=/lib:/usr/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 set EEPROM boot order (runs rpi-eeprom-config directly), 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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