diff --git a/README.md b/README.md
index de80d8ea..d56b236a 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,9 @@ The installation script and the update-designer.sh script set environment variab
 so you may want to logout/login, or start a new bash shell before using Labtainers the
 first time.
 
+July 26, 2024
+- Modify capinout to not use grantpt clib function, which now seems to crash when run from a container.
+
 July 22, 2024
 - Add a base container for Ubuntu22 and changes to framework to support that.
 
diff --git a/scripts/designer/templates/dockerfiles/Dockerfile.template.base3.student b/scripts/designer/templates/dockerfiles/Dockerfile.template.base3.student
index 774bf8c0..0bf52709 100644
--- a/scripts/designer/templates/dockerfiles/Dockerfile.template.base3.student
+++ b/scripts/designer/templates/dockerfiles/Dockerfile.template.base3.student
@@ -45,7 +45,7 @@ RUN /usr/bin/apt-source.sh
 ADD $labdir/$imagedir/sys_tar/sys.tar /
 ADD $labdir/sys_$lab.tar.gz /
 #
-RUN deluser --remove-home ubuntu`
+RUN deluser --remove-home ubuntu
 RUN useradd -ms /bin/bash $user_name
 RUN echo "$user_name:$password" | chpasswd
 RUN adduser $user_name sudo
diff --git a/testsets/bin/test-ubuntu24.sh b/testsets/bin/test-ubuntu24.sh
new file mode 100755
index 00000000..313462f4
--- /dev/null
+++ b/testsets/bin/test-ubuntu24.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+# Start the Ubuntu 24 smoke test with the results of the latest mkall
+#
+isrunning=$(./vbox-client.py "list runningvms")
+echo "isrunning $isrunning"
+ok=$(echo $isrunning | grep -c "LabtainerVM24-smoketest")
+if [[ $ok != 0 ]]; then
+    echo "ERROR:  Is already running: $isrunning"
+    exit 1
+fi
+vmdir="/media/sf_SEED/test_vms/ubuntu24smoke/"
+if [[ "$1" != "-n" ]]; then 
+    mkdir -p $vmdir
+    cp testvm-do.sh $vmdir/dothis.sh
+    chmod a+x $vmdir/dothis.sh
+    if [[ "$1" != "-t" ]]; then
+        branch=$(git rev-parse --abbrev-ref HEAD)
+        sed -i "s/REPLACE_THIS/$branch/" $vmdir/dothis.sh
+    else
+        sed -i "s/REPLACE_THIS/premaster/" $vmdir/dothis.sh
+    fi
+else
+    echo "Leaving the dothis.sh file as it was."
+fi
+tlist="labtainer.tar labtainer-master.tar labtainer-tests.tar"
+for t in $tlist; do
+    cp /media/sf_SEED/$t $vmdir
+done
+
+./vbox-client.py "startvm LabtainerVM24-smoketest"
diff --git a/tool-src/capinout/mypty2.cpp b/tool-src/capinout/mypty2.cpp
index eea47061..d85a1375 100644
--- a/tool-src/capinout/mypty2.cpp
+++ b/tool-src/capinout/mypty2.cpp
@@ -172,12 +172,12 @@ int getMaster()
       return -1;
    }
    
-   rc = grantpt(fdm);
-   if (rc != 0)
-   {
-      fprintf(stderr, "Error %d on grantpt()\n", errno);
-      return -1;
-   }
+   //rc = grantpt(fdm);
+   //if (rc != 0)
+   //{
+   //   fprintf(stderr, "Error %d on grantpt()\n", errno);
+   //   return -1;
+   //}
    
    rc = unlockpt(fdm);
    if (rc != 0)