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.
39 lines
1.2 KiB
Bash
Executable File
39 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# Minimal udhcpc script: apply IP and default route when lease is obtained.
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# udhcpc sets: $1=bound|renew|deconfig, $ip, $subnet (dotted), $router, $dns, $interface
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mask2cidr() {
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# Convert dotted subnet (e.g. 255.255.255.0) to CIDR prefix (e.g. 24)
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_bits=0
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for _octet in $(echo "$1" | cut -d. -f1) $(echo "$1" | cut -d. -f2) $(echo "$1" | cut -d. -f3) $(echo "$1" | cut -d. -f4); do
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case "$_octet" in
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255) _bits=$((_bits+8)) ;; 254) _bits=$((_bits+7)) ;; 252) _bits=$((_bits+6)) ;;
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248) _bits=$((_bits+5)) ;; 240) _bits=$((_bits+4)) ;; 224) _bits=$((_bits+3)) ;;
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192) _bits=$((_bits+2)) ;; 128) _bits=$((_bits+1)) ;; 0) ;;
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esac
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done
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echo "$_bits"
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}
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case "$1" in
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deconfig)
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ip addr flush dev "$interface" 2>/dev/null
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;;
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bound|renew)
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CIDR=$(mask2cidr "${subnet:-255.255.255.0}")
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ip addr flush dev "$interface" 2>/dev/null
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ip addr add "$ip/$CIDR" dev "$interface"
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if [ -n "$router" ]; then
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for r in $router; do
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ip route add default via "$r" dev "$interface" 2>/dev/null
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done
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fi
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if [ -n "$dns" ]; then
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: > /etc/resolv.conf
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for d in $dns; do
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echo "nameserver $d" >> /etc/resolv.conf
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done
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fi
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;;
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esac
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