Add script for firmware update on gl inet microuter n300

openwrt/.gitignore

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+*.rootpw
+*.public_key

openwrt/microuter-n300-firmware-upgrade.sh

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+#!/bin/sh
+# 2022-01-20, Nico Schottelius
+# See https://ungleich.ch/u/products/device-ipv6-box/
+
+if [ $# -ne 1 ]; then
+    echo "$0 address"
+    echo "    address: connect to this address"
+    exit 1
+fi
+
+set -x
+
+device_ip=$1; shift
+
+# openwrt
+version=21.02.0
+filename=openwrt-${version}-ramips-mt76x8-glinet_microuter-n300-squashfs-sysupgrade.bin
+
+# don't care about other/old known_host entries
+ssh-keygen  -R ${device_ip}
+
+while ! ping -c1 ${device_ip}; do
+    echo "Cannot ping $device_ip yet - waiting"
+    sleep 1
+done
+
+cat ~/.ssh/id_rsa.pub | ssh root@${device_ip} "cat > /etc/dropbear/authorized_keys"
+
+# Don't re-download if we already have it
+wget -c http://downloads.openwrt.org/releases/${version}/targets/ramips/mt76x8/${filename}
+
+if echo $device_ip | grep -q :; then
+    scp_ip="[$device_ip]"
+else
+    scp_ip="$device_ip"
+fi
+
+scp ${filename} root@${scp_ip}:/tmp
+ssh root@${device_ip} "sysupgrade -n /tmp/*.bin"