Remove check for supported OS (#6206)

advanced/Scripts/piholeDebug.sh

@@ -296,91 +296,12 @@ check_component_versions() {
     check_ftl_version
 }
 
-os_check() {
-    # This function gets a list of supported OS versions from a TXT record at versions.pi-hole.net
-    # and determines whether or not the script is running on one of those systems
-    local remote_os_domain valid_os valid_version detected_os detected_version cmdResult digReturnCode response
-    remote_os_domain=${OS_CHECK_DOMAIN_NAME:-"versions.pi-hole.net"}
-
-    detected_os=$(grep "\bID\b" /etc/os-release | cut -d '=' -f2 | tr -d '"')
-    detected_version=$(grep VERSION_ID /etc/os-release | cut -d '=' -f2 | tr -d '"')
-
-    cmdResult="$(dig -4 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
-    #Get the return code of the previous command (last line)
-    digReturnCode="${cmdResult##*$'\n'}"
-
-    # Extract dig response
-    response="${cmdResult%%$'\n'*}"
-
-    if [ "${digReturnCode}" -ne 0 ]; then
-        log_write "${INFO} Distro: ${detected_os^}"
-        log_write "${INFO} Version: ${detected_version}"
-        log_write "${CROSS} dig IPv4 return code: ${COL_RED}${digReturnCode}${COL_NC}"
-        log_write "${CROSS} dig response: ${response}"
-        log_write "${INFO} Retrying via IPv6"
-
-        cmdResult="$(dig -6 +short -t txt "${remote_os_domain}" @ns1.pi-hole.net 2>&1; echo $?)"
-        #Get the return code of the previous command (last line)
-        digReturnCode="${cmdResult##*$'\n'}"
-
-        # Extract dig response
-        response="${cmdResult%%$'\n'*}"
-    fi
-    # If also no success via IPv6
-    if [ "${digReturnCode}" -ne 0 ]; then
-        log_write "${CROSS} dig IPv6 return code: ${COL_RED}${digReturnCode}${COL_NC}"
-        log_write "${CROSS} dig response: ${response}"
-        log_write "${CROSS} Error: ${COL_RED}dig command failed - Unable to check OS${COL_NC}"
-    else
-        IFS=" " read -r -a supportedOS < <(echo "${response}" | tr -d '"')
-        for distro_and_versions in "${supportedOS[@]}"
-        do
-            distro_part="${distro_and_versions%%=*}"
-            versions_part="${distro_and_versions##*=}"
-
-            if [[ "${detected_os^^}" =~ ${distro_part^^} ]]; then
-                valid_os=true
-                IFS="," read -r -a supportedVer <<<"${versions_part}"
-                for version in "${supportedVer[@]}"
-                do
-                    if [[ "${detected_version}" =~ $version ]]; then
-                        valid_version=true
-                        break
-                    fi
-                done
-                break
-            fi
-        done
-
-        # If it is a docker container, we can assume the OS is supported
-        [ -n "${DOCKER_VERSION}" ] && valid_os=true && valid_version=true
-
-        local finalmsg
-        if [ "$valid_os" = true ]; then
-            log_write "${TICK} Distro:  ${COL_GREEN}${detected_os^}${COL_NC}"
-
-            if [ "$valid_version" = true ]; then
-                log_write "${TICK} Version: ${COL_GREEN}${detected_version}${COL_NC}"
-                finalmsg="${TICK} ${COL_GREEN}Distro and version supported${COL_NC}"
-            else
-                log_write "${CROSS} Version: ${COL_RED}${detected_version}${COL_NC}"
-                finalmsg="${CROSS} Error: ${COL_RED}${detected_os^} is supported but version ${detected_version} is currently unsupported ${COL_NC}(${FAQ_HARDWARE_REQUIREMENTS})${COL_NC}"
-            fi
-        else
-            log_write "${CROSS} Distro:  ${COL_RED}${detected_os^}${COL_NC}"
-            finalmsg="${CROSS} Error: ${COL_RED}${detected_os^} is not a supported distro ${COL_NC}(${FAQ_HARDWARE_REQUIREMENTS})${COL_NC}"
-        fi
-
-        # Print dig response and the final check result
-        log_write "${TICK} dig return code: ${COL_GREEN}${digReturnCode}${COL_NC}"
-        log_write "${INFO} dig response: ${response}"
-        log_write "${finalmsg}"
-    fi
-}
-
 diagnose_operating_system() {
     # error message in a variable so we can easily modify it later (or reuse it)
     local error_msg="Distribution unknown -- most likely you are on an unsupported platform and may run into issues."
+    local detected_os
+    local detected_version
+
     # Display the current test that is running
     echo_current_diagnostic "Operating system"
 
@@ -389,8 +310,13 @@ diagnose_operating_system() {
 
     # If there is a /etc/*release file, it's probably a supported operating system, so we can
     if ls /etc/*release 1> /dev/null 2>&1; then
-        # display the attributes to the user from the function made earlier
+        # display the attributes to the user
-        os_check
+
+        detected_os=$(grep "\bID\b" /etc/os-release | cut -d '=' -f2 | tr -d '"')
+        detected_version=$(grep VERSION_ID /etc/os-release | cut -d '=' -f2 | tr -d '"')
+
+        log_write "${INFO} Distro: ${detected_os^}"
+        log_write "${INFO} Version: ${detected_version}"
     else
         # If it doesn't exist, it's not a system we currently support and link to FAQ
         log_write "${CROSS} ${COL_RED}${error_msg}${COL_NC} (${FAQ_HARDWARE_REQUIREMENTS})"

advanced/Scripts/update.sh

@@ -112,8 +112,6 @@ main() {
     web_update=false
     FTL_update=false
 
-    # Perform an OS check to ensure we're on an appropriate operating system
-    os_check
 
     # Install packages used by this installation script (necessary if users have removed e.g. git from their systems)
     package_manager_detect

automated install/basic-install.sh

@@ -227,176 +227,6 @@ is_command() {
     command -v "${check_command}" >/dev/null 2>&1
 }
 
-os_check_dig(){
-    local protocol="$1"
-    local domain="$2"
-    local nameserver="$3"
-    local response
-
-    response="$(dig -"${protocol}" +short -t txt "${domain}" "${nameserver}" 2>&1
-    echo $?
-    )"
-    echo "${response}"
-}
-
-os_check_dig_response(){
-    # Checks the reply from the dig command to determine if it's a valid response
-    local digReply="$1"
-    local response
-
-    # Dig returned 0 (success), so get the actual response, and loop through it to determine if the detected variables above are valid
-    response="${digReply%%$'\n'*}"
-    # If the value of ${response} is a single 0, then this is the return code, not an actual response.
-    if [ "${response}" == 0 ]; then
-        echo false
-    else
-        echo true
-    fi
-}
-
-os_check() {
-    if [ "$PIHOLE_SKIP_OS_CHECK" != true ]; then
-        # This function gets a list of supported OS versions from a TXT record at versions.pi-hole.net
-        # and determines whether or not the script is running on one of those systems
-        local remote_os_domain valid_os valid_version valid_response detected_os detected_version display_warning cmdResult digReturnCode response
-        local piholeNameserver="@ns1.pi-hole.net"
-        remote_os_domain=${OS_CHECK_DOMAIN_NAME:-"versions.pi-hole.net"}
-
-        detected_os=$(grep '^ID=' /etc/os-release | cut -d '=' -f2 | tr -d '"')
-        detected_version=$(grep VERSION_ID /etc/os-release | cut -d '=' -f2 | tr -d '"')
-
-        # Test via IPv4 and hardcoded nameserver ns1.pi-hole.net
-        cmdResult=$(os_check_dig 4 "${remote_os_domain}" "${piholeNameserver}")
-
-        # Gets the return code of the previous command (last line)
-        digReturnCode="${cmdResult##*$'\n'}"
-
-        if [ ! "${digReturnCode}" == "0" ]; then
-            valid_response=false
-        else
-            valid_response=$(os_check_dig_response cmdResult)
-        fi
-
-        # Try again via IPv6 and hardcoded nameserver ns1.pi-hole.net
-        if [ "$valid_response" = false ]; then
-            unset valid_response
-            unset cmdResult
-            unset digReturnCode
-
-            cmdResult=$(os_check_dig 6 "${remote_os_domain}" "${piholeNameserver}")
-            # Gets the return code of the previous command (last line)
-            digReturnCode="${cmdResult##*$'\n'}"
-
-            if [ ! "${digReturnCode}" == "0" ]; then
-                valid_response=false
-            else
-                valid_response=$(os_check_dig_response cmdResult)
-            fi
-        fi
-
-        # Try again without hardcoded nameserver
-        if [ "$valid_response" = false ]; then
-            unset valid_response
-            unset cmdResult
-            unset digReturnCode
-
-            cmdResult=$(os_check_dig 4 "${remote_os_domain}")
-            # Gets the return code of the previous command (last line)
-            digReturnCode="${cmdResult##*$'\n'}"
-
-            if [ ! "${digReturnCode}" == "0" ]; then
-                valid_response=false
-            else
-                valid_response=$(os_check_dig_response cmdResult)
-            fi
-        fi
-
-        if [ "$valid_response" = false ]; then
-            unset valid_response
-            unset cmdResult
-            unset digReturnCode
-
-            cmdResult=$(os_check_dig 6 "${remote_os_domain}")
-            # Gets the return code of the previous command (last line)
-            digReturnCode="${cmdResult##*$'\n'}"
-
-            if [ ! "${digReturnCode}" == "0" ]; then
-                valid_response=false
-            else
-                valid_response=$(os_check_dig_response cmdResult)
-            fi
-        fi
-
-        if [ "$valid_response" = true ]; then
-            response="${cmdResult%%$'\n'*}"
-            IFS=" " read -r -a supportedOS < <(echo "${response}" | tr -d '"')
-            for distro_and_versions in "${supportedOS[@]}"; do
-                distro_part="${distro_and_versions%%=*}"
-                versions_part="${distro_and_versions##*=}"
-
-                # If the distro part is a (case-insensitive) substring of the computer OS
-                if [[ "${detected_os^^}" =~ ${distro_part^^} ]]; then
-                    valid_os=true
-                    IFS="," read -r -a supportedVer <<<"${versions_part}"
-                    for version in "${supportedVer[@]}"; do
-                        if [[ "${detected_version}" =~ $version ]]; then
-                            valid_version=true
-                            break
-                        fi
-                    done
-                    break
-                fi
-            done
-        fi
-
-        if [ "$valid_os" = true ] && [ "$valid_version" = true ] && [ "$valid_response" = true ]; then
-            display_warning=false
-        fi
-
-        if [ "$display_warning" != false ]; then
-            if [ "$valid_response" = false ]; then
-
-                if [ "${digReturnCode}" -eq 0 ]; then
-                    errStr="dig succeeded, but response was blank. Please contact support"
-                else
-                    errStr="dig failed with return code ${digReturnCode}"
-                fi
-                printf "  %b %bRetrieval of supported OS list failed. %s. %b\\n" "${CROSS}" "${COL_LIGHT_RED}" "${errStr}" "${COL_NC}"
-                printf "      %bUnable to determine if the detected OS (%s %s) is supported%b\\n" "${COL_LIGHT_RED}" "${detected_os^}" "${detected_version}" "${COL_NC}"
-                printf "      Possible causes for this include:\\n"
-                printf "        - Firewall blocking DNS lookups from Pi-hole device to ns1.pi-hole.net\\n"
-                printf "        - DNS resolution issues of the host system\\n"
-                printf "        - Other internet connectivity issues\\n"
-            else
-                printf "  %b %bUnsupported OS detected: %s %s%b\\n" "${CROSS}" "${COL_LIGHT_RED}" "${detected_os^}" "${detected_version}" "${COL_NC}"
-                printf "      If you are seeing this message and you do have a supported OS, please contact support.\\n"
-            fi
-            printf "\\n"
-            printf "      %bhttps://docs.pi-hole.net/main/prerequisites/#supported-operating-systems%b\\n" "${COL_LIGHT_GREEN}" "${COL_NC}"
-            printf "\\n"
-            printf "      If you wish to attempt to continue anyway, you can try one of the following commands to skip this check:\\n"
-            printf "\\n"
-            printf "      e.g: If you are seeing this message on a fresh install, you can run:\\n"
-            printf "             %bcurl -sSL https://install.pi-hole.net | sudo PIHOLE_SKIP_OS_CHECK=true bash%b\\n" "${COL_LIGHT_GREEN}" "${COL_NC}"
-            printf "\\n"
-            printf "           If you are seeing this message after having run pihole -up:\\n"
-            printf "             %bsudo PIHOLE_SKIP_OS_CHECK=true pihole -r%b\\n" "${COL_LIGHT_GREEN}" "${COL_NC}"
-            printf "           (In this case, your previous run of pihole -up will have already updated the local repository)\\n"
-            printf "\\n"
-            printf "      It is possible that the installation will still fail at this stage due to an unsupported configuration.\\n"
-            printf "      If that is the case, you can feel free to ask the community on Discourse with the %bCommunity Help%b category:\\n" "${COL_LIGHT_RED}" "${COL_NC}"
-            printf "      %bhttps://discourse.pi-hole.net/c/bugs-problems-issues/community-help/%b\\n" "${COL_LIGHT_GREEN}" "${COL_NC}"
-            printf "\\n"
-            exit 1
-
-        else
-            printf "  %b %bSupported OS detected%b\\n" "${TICK}" "${COL_LIGHT_GREEN}" "${COL_NC}"
-        fi
-    else
-        printf "  %b %bPIHOLE_SKIP_OS_CHECK env variable set to true - installer will continue%b\\n" "${INFO}" "${COL_LIGHT_GREEN}" "${COL_NC}"
-    fi
-}
-
 # Compatibility
 package_manager_detect() {
 
@@ -2369,8 +2199,6 @@ main() {
     # Install Pi-hole dependencies
     install_dependent_packages
 
-    # Check that the installed OS is officially supported - display warning if not
-    os_check
 
     # Check if there is a usable FTL binary available on this architecture - do
     # this early on as FTL is a hard dependency for Pi-hole

test/_centos_10.Dockerfile

@@ -15,6 +15,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_centos_9.Dockerfile

@@ -15,6 +15,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_debian_11.Dockerfile

@@ -12,6 +12,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_debian_12.Dockerfile

@@ -12,6 +12,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_fedora_40.Dockerfile

@@ -13,6 +13,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_fedora_41.Dockerfile

@@ -13,6 +13,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_ubuntu_20.Dockerfile

@@ -12,6 +12,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_ubuntu_22.Dockerfile

@@ -13,6 +13,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/_ubuntu_24.Dockerfile

@@ -13,6 +13,5 @@ RUN true && \
     chmod +x $SCRIPTDIR/*
 
 ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
 
 #sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \

test/test_any_automated_install.py

@@ -465,50 +465,6 @@ def test_validate_ip(host):
     test_address("0.0.0.0#00001", False)
 
 
-def test_os_check_fails(host):
-    """Confirms install fails on unsupported OS"""
-    host.run(
-        """
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    build_dependency_package
-    install_dependent_packages
-    cat <<EOT > /etc/os-release
-ID=UnsupportedOS
-VERSION_ID="2"
-EOT
-    """
-    )
-    detectOS = host.run(
-        """t
-    source /opt/pihole/basic-install.sh
-    os_check
-    """
-    )
-    expected_stdout = "Unsupported OS detected: UnsupportedOS"
-    assert expected_stdout in detectOS.stdout
-
-
-def test_os_check_passes(host):
-    """Confirms OS meets the requirements"""
-    host.run(
-        """
-    source /opt/pihole/basic-install.sh
-    package_manager_detect
-    build_dependency_package
-    install_dependent_packages
-    """
-    )
-    detectOS = host.run(
-        """
-    source /opt/pihole/basic-install.sh
-    os_check
-    """
-    )
-    expected_stdout = "Supported OS detected"
-    assert expected_stdout in detectOS.stdout
-
-
 def test_package_manager_has_pihole_deps(host):
     """Confirms OS is able to install the required packages for Pi-hole"""
     mock_command("dialog", {"*": ("", "0")}, host)