Add new file and reference in README.md for Ubuntu 24.04

Source files in docker builds have a new format.

README.md

@@ -62,6 +62,7 @@ BASE_IMAGE ?= ubuntu:22.04
 PYTHON_VERSION ?= 3.12
 NUMPY_VERSION ?= 1.26.4
 ```
+For `Ubuntu 24.04` and newer, replace the file `tensorflow/lite/tools/pip_package/update_sources.sh` with the one provided in this repository.
 
 Note: if you are building against Ubuntu, this is all you need to change. If you are building for `debian:bookworm` or `debian:bullseye`, you need to remove/comment the following line from `tensorflow/lite/tools/pip_package/Dockerfile.py3`, since the added ppa repository is specific only to ubuntu.
 

src/update_sources.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+. /etc/os-release
+
+[[ "${NAME}" == "Ubuntu" ]] || exit 0
+
+sed -i "s/deb\ /deb \[arch=amd64\]\ /g" /etc/apt/sources.list
+
+if [ ${UBUNTU_CODENAME} == "noble" ]; then
+
+echo "NOBLE"
+
+rm /etc/apt/sources.list.d/ubuntu.sources
+cat <<EOT >> /etc/apt/sources.list.d/ubuntu.sources
+
+Types: deb
+URIs: http://archive.ubuntu.com/ubuntu/
+Suites: ${UBUNTU_CODENAME} ${UBUNTU_CODENAME}-updates ${UBUNTU_CODENAME}-backports
+Components: main universe restricted multiverse
+Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
+Architectures: amd64
+
+## Ubuntu security updates. Aside from URIs and Suites,
+## this should mirror your choices in the previous section.
+Types: deb
+URIs: http://security.ubuntu.com/ubuntu/
+Suites: ${UBUNTU_CODENAME}-security
+Components: main universe restricted multiverse
+Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
+Architectures: amd64
+
+Types: deb
+URIs: http://ports.ubuntu.com/ubuntu-ports
+Suites: ${UBUNTU_CODENAME} ${UBUNTU_CODENAME}-updates ${UBUNTU_CODENAME}-security
+Components: main universe
+Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
+Architectures: arm64 armhf
+
+EOT
+
+else
+
+cat <<EOT >> /etc/apt/sources.list
+deb [arch=arm64,armhf] http://ports.ubuntu.com/ubuntu-ports ${UBUNTU_CODENAME} main universe
+deb [arch=arm64,armhf] http://ports.ubuntu.com/ubuntu-ports ${UBUNTU_CODENAME}-updates main universe
+deb [arch=arm64,armhf] http://ports.ubuntu.com/ubuntu-ports ${UBUNTU_CODENAME}-security main universe
+EOT
+
+fi
+
+
+