Updates for 2026-jun-01 (#745)

* Move optional steps for testing VMs out of README.md file
This may help avoid new users being confused that they must follow
those instructions.

Signed-off-by: Andy Fingerhut <andy_fingerhut@alum.wustl.edu>

* Add 2025-Jan-30 versions of source code for install.sh

Signed-off-by: Andy Fingerhut <andy_fingerhut@alum.wustl.edu>

* Updates for 2026-Jun-01

Signed-off-by: Andy Fingerhut <andy_fingerhut@alum.wustl.edu>

---------

Signed-off-by: Andy Fingerhut <andy_fingerhut@alum.wustl.edu>

Author: jafingerhut

vm-ubuntu-24.04/install-p4dev-v8.sh

@@ -849,7 +849,7 @@ else
     git log -n 1
     TIME_BEHAVIORAL_MODEL_INSTALL_START=$(date +%s)
     PATCH_DIR="${THIS_SCRIPT_DIR_ABSOLUTE}/patches"
-    patch -p1 < "${PATCH_DIR}/behavioral-model-support-fedora.patch"
+    patch -p1 < "${PATCH_DIR}/behavioral-model-adjust-ubuntu-packges.patch"
     patch -p1 < "${PATCH_DIR}/behavioral-model-support-venv-2026-apr.patch"
     # This command installs Thrift, which I want to include in my build of
     # simple_switch_grpc

vm-ubuntu-24.04/install.sh

@@ -45,11 +45,11 @@ else
 fi
 
 case ${VERSION} in
-    2026-May-01)
-	export INSTALL_BEHAVIORAL_MODEL_SOURCE_VERSION="08bba268ecf3c92e53778b9605696c1e2c46d9e8"
-	export INSTALL_PI_SOURCE_VERSION="51805c0108cb49e85e4812dd05bb6693b1f48f85"
-	export INSTALL_P4C_SOURCE_VERSION="fe95abfa3318512732776a1ad0aa83b4f2192216"
-	export INSTALL_PTF_SOURCE_VERSION="c67ca73692fb1ec23e0b11c7f5b03f1633da09a2"
+    2026-Jun-01)
+	export INSTALL_BEHAVIORAL_MODEL_SOURCE_VERSION="282fce33f94046150781e0cb2e1576a01a2522b9"
+	export INSTALL_PI_SOURCE_VERSION="c99ed2ad5d2614be33e788d9c5f32f4f22e9c384"
+	export INSTALL_P4C_SOURCE_VERSION="78157dc6c13157df802309313d1005b77cfbe7b1"
+	export INSTALL_PTF_SOURCE_VERSION="c15b9e8273976559e6c08e6ca8dc5ff1e2a0a623"
 	;;
     latest)
 	echo "Using the latest version of all p4lang repository source code."

vm-ubuntu-24.04/patches/behavioral-model-adjust-ubuntu-packges.patch

@@ -0,0 +1,37 @@
+diff --git a/install_deps.sh b/install_deps.sh
+index 02dd6d2..7673969 100755
+--- a/install_deps.sh
++++ b/install_deps.sh
+@@ -18,31 +18,20 @@ sudo apt-get install -y \
+     g++ \
+     libboost-dev \
+     libboost-program-options-dev \
++    libboost-test-dev \
+     libboost-thread-dev \
+     libevent-dev \
+     libffi-dev \
+     libgmp-dev \
+-    libgrpc++-dev \
+-    libgrpc-dev \
+     libjsoncpp-dev \
+-    libnanomsg-dev \
+     libpcap-dev \
+-    libprotobuf-dev \
+-    libprotoc-dev \
+-    libreadline-dev \
+     libssl-dev \
+-    libthrift-dev \
+     libtool \
+     libtool-bin \
+     libxxhash-dev \
+     pkg-config \
+-    protobuf-compiler \
+-    protobuf-compiler-grpc \
+     python3-dev \
+     python3-pip \
+-    python3-six \
+-    python3-thrift \
+-    thrift-compiler \
+     wget
+ 
+ tmpdir=`mktemp -d -p .`

vm-ubuntu-24.04/patches/behavioral-model-adjust-ubuntu-packges.patch.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 Andy Fingerhut
+
+SPDX-License-Identifier: Apache-2.0