Fix the binary detection for ARMv6 and simplify the router overall

Signed-off-by: DL6ER <dl6er@dl6er.de>

automated install/basic-install.sh

@@ -1875,29 +1875,27 @@ get_binary_name() {
         local rev
         rev=$(echo "${cpu_arch}" | grep -o '[0-9]*')
         if [[ "${machine}" == "aarch64" ]]; then
+            # If AArch64 is found (e.g., BCM2711 in Raspberry Pi 4)
             printf "%b  %b Detected AArch64 (64 Bit ARM) architecture\\n" "${OVER}" "${TICK}"
-            # set the binary to be used
             l_binary="pihole-FTL-arm64"
-        elif [[ "${cpu_arch}" == "armv6"* ]]; then
+        elif [[ "${cpu_arch}" == "v6"* ]]; then
+            # If ARMv6 is found (e.g., BCM2835 in Raspberry Pi 1 and Zero)
             printf "%b  %b Detected ARMv6 architecture\\n" "${OVER}" "${TICK}"
-            # set the binary to be used (e.g., BCM2835 as found in Raspberry Pi Zero and Model 1)
+            l_binary="pihole-FTL-armv6"
+        elif [[ "${cpu_arch}" == "v7"* || "${rev}" -ge 7 ]]; then
+            # If ARMv7 or higher is found (e.g., BCM2836 in Raspberry PI 2 Mod. B)
+            # This path is also used for ARMv8 when the OS is in 32bit mode
+            # (e.g., BCM2837 in Raspberry Pi Model 3B, or BCM2711 in Raspberry Pi 4)
+            printf "%b  %b Detected ARMv7 (or newer) architecture (%s)\\n" "${OVER}" "${TICK}" "${cpu_arch}"
+            l_binary="pihole-FTL-armv7"
+        elif [[ "${rev}" -gt 6 ]]; then
+            # Otherwise, if ARMv7 is found (e.g., BCM2836 in Raspberry Pi Model 2)
+            printf "%b  %b Detected ARMv7 architecture (%s)\\n" "${OVER}" "${TICK}" "${cpu_arch}"
             l_binary="pihole-FTL-armv6"
         else
-            # If ARMv8 or higher is found (e.g., BCM2837 as found in Raspberry Pi Model 3B)
-            if [[ "${cpu_arch}" == "v7" || "${rev}" -gt 7 ]]; then
-                printf "%b  %b Detected ARMv7 (or newer) architecture (%s)\\n" "${OVER}" "${TICK}" "${cpu_arch}"
-                # set the binary to be used
-                l_binary="pihole-FTL-armv7"
-            elif [[ "${rev}" -gt 6 ]]; then
-                # Otherwise, if ARMv7 is found (e.g., BCM2836 as found in Raspberry Pi Model 2)
-                printf "%b  %b Detected ARMv7 architecture (%s)\\n" "${OVER}" "${TICK}" "${cpu_arch}"
-                # set the binary to be used
-                l_binary="pihole-FTL-armv6"
-            else
-                # Otherwise, Pi-hole does not support this architecture
-                printf "%b  %b This processor architecture is not supported by Pi-hole (%s)\\n" "${OVER}" "${CROSS}" "${cpu_arch}"
-                l_binary=""
-            fi
+            # Otherwise, Pi-hole does not support this architecture
+            printf "%b  %b This processor architecture is not supported by Pi-hole (%s)\\n" "${OVER}" "${CROSS}" "${cpu_arch}"
+            l_binary=""
         fi
     elif [[ "${machine}" == "x86_64" ]]; then
         # This gives the processor of packages dpkg installs (for example, "i386")
@@ -1912,9 +1910,8 @@ get_binary_name() {
             printf "%b  %b Detected 32bit (i686) architecture\\n" "${OVER}" "${TICK}"
             l_binary="pihole-FTL-386"
         else
-            # 64bit
+            # 64bit OS
             printf "%b  %b Detected x86_64 architecture\\n" "${OVER}" "${TICK}"
-            # set the binary to be used
             l_binary="pihole-FTL-amd64"
         fi
     elif [[ "${machine}" == "riscv64" ]]; then