Add Bitcoin Knots v26.1

rootfs/standard/usr/bin/mynode-install-custom-bitcoin

@@ -63,6 +63,39 @@ if [ "$APP" = "ordisrespector" ]; then
     echo "24.0.1-ordisrespector" > /home/bitcoin/.mynode/bitcoin_version_latest_custom
     echo "24.0.1-ordisrespector" > /mnt/hdd/mynode/settings/bitcoin_version_latest_custom
 
+    cd ~
+elif [ "$APP" = "knots_26_1" ]; then
+    # Determin arch
+    ARCH="UNKNOWN"
+    if [ $IS_RASPI = 1 ]; then
+        ARCH="arm-linux-gnueabihf"
+        if [ $IS_ARM64 = 1 ]; then
+            ARCH="aarch64-linux-gnu"
+        fi
+    elif [ $IS_ROCK64 = 1 ] || [ $IS_ROCKPRO64 = 1 ] || [ $IS_ROCKPI4 = 1 ]; then
+        ARCH="aarch64-linux-gnu"
+    elif [ $IS_X86 = 1 ]; then
+        ARCH="x86_64-linux-gnu"
+    else
+        echo "Unknown Bitcoin Version"
+        exit 1
+    fi
+    BTC_UPGRADE_URL=https://bitcoinknots.org/files/26.x/26.1.knots20240513/bitcoin-26.1.knots20240513-$ARCH.tar.gz
+
+    rm -rf /opt/download
+    mkdir -p /opt/download
+    cd /opt/download
+
+    # Download and install
+    wget $BTC_UPGRADE_URL -O knots.tar.gz
+    tar -xvf knots.tar.gz
+    mv bitcoin-* bitcoin
+    install -m 0755 -o root -g root -t /usr/local/bin bitcoin/bin/*
+
+    echo "26.1-knots" > /home/bitcoin/.mynode/bitcoin_version
+    echo "26.1-knots" > /home/bitcoin/.mynode/bitcoin_version_latest_custom
+    echo "26.1-knots" > /mnt/hdd/mynode/settings/bitcoin_version_latest_custom
+
     cd ~
 elif [ "$APP" = "default" ]; then
     # Clear custom info and re-install bitcoin

rootfs/standard/var/pynode/bitcoin_info.py

@@ -38,7 +38,10 @@ def get_bitcoin_rpc_password():
 def get_bitcoin_version():
     global bitcoin_version
     if bitcoin_version == None:
-        bitcoin_version = to_string(subprocess.check_output("bitcoind --version | egrep -o 'v[0-9]+\\.[0-9]+\\.[0-9]+'", shell=True))
+        try:
+            bitcoin_version = to_string(subprocess.check_output("bitcoind --version | egrep -o 'v[0-9]+\\.[0-9]+\\.[a-z0-9]+'", shell=True))
+        except Exception as e:
+            bitcoin_version = "unknown"
     return bitcoin_version
 
 def is_bitcoin_synced():

rootfs/standard/var/www/mynode/templates/settings.html

@@ -1087,6 +1087,7 @@
                 <option value="none" selected="selected">Choose...</option>
                 <option value="default">Default</option>
                 <option value="ordisrespector">Ordisrespector (v24.0.1)</option>
+                <option value="knots_26_1">Bitcoin Knots (v26.1)</option>
             </select>
             <button id="custom_bitcoin_install_button">Install</button>
         </div>