diff --git a/tests/main/snap-run-devmode-classic/task.yaml b/tests/main/snap-run-devmode-classic/task.yaml
index b569f565d4f..15c5ad666de 100644
--- a/tests/main/snap-run-devmode-classic/task.yaml
+++ b/tests/main/snap-run-devmode-classic/task.yaml
@@ -19,10 +19,6 @@ systems:
     # when the host has cgroupsv2 in it
     - ubuntu-16.04-*
 
-# Start early as it takes a long time.
-priority: 100
-kill-timeout: 60m
-
 environment:
     # ensure that re-exec is on by default like it should be
     SNAP_REEXEC: "1"
@@ -39,28 +35,12 @@ environment:
     BASE_NON_CORE_STRICT_SNAP: test-snapd-sh-core18
 
 prepare: |
-    # much of what follows is copied from tests/main/snapd-snap
-
-    apt-get autoremove -y lxd lxd-client
-
-    # load the fuse kernel module before installing lxd
-    modprobe fuse
-    "$TESTSTOOLS"/lxd-state prepare-snap
-
-    # install snapcraft snap
-
-    snap install snapcraft --channel="${SNAPCRAFT_SNAP_CHANNEL}" --classic
-    tests.cleanup defer snap remove --purge snapcraft
-
-    # shellcheck disable=SC2164
-    pushd "${PROJECT_PATH}"
-    echo "Build the snap"
-    snap run snapcraft --verbosity debug --output snapd-from-branch.snap
-    # Save some disk
-    snap run snapcraft clean
-    popd
+    # Core snap is not modified for classic re-exec any more in this scenario
+    if tests.info is-snapd-pkg-repo; then
+        tests.exec skip-test "Core snap is not modified for classic re-exec any more in this scenario" && exit 0
+    fi
 
-    mv "$PROJECT_PATH/snapd-from-branch.snap" "$PWD/snapd-from-branch.snap"
+    cp "$SNAPD_WORK_DIR"/snapd_snap/snapd_*.snap "$PWD/snapd-from-branch.snap"
 
     # now repack the core snap with this snapd snap
     snap download core --edge --basename=core-from-edge
@@ -87,11 +67,11 @@ prepare: |
     rm -r "$coredir"
     rm -r "$snapddir"
 
-restore: |
-    "$TESTSTOOLS"/lxd-state undo-mount-changes || true
-
 execute: |
+    tests.exec is-skipped && exit 0
+
     if [ "$SNAP_TO_USE_FIRST" = "core" ]; then
+
         # first install our core snap because we don't have the snapd snap on 
         # the system yet, so we don't need to do any shenanigans
         snap install --dangerous core-from-branch.snap
@@ -141,7 +121,6 @@ execute: |
         # we already had the core snap installed, so we need to purge things
         # and then install only the snapd snap to test this scenario
 
-        snap remove go snapcraft
         snap remove core18
         apt remove --purge -y snapd
         apt install snapd -y
@@ -187,7 +166,4 @@ execute: |
 
         # undo the purging
         apt install -y "$GOHOME"/snapd_*.deb
-    else
-        echo "unknown variant $SNAP_TO_USE_FIRST"
-        exit 1
     fi
diff --git a/tests/main/snapd-update-services/task.yaml b/tests/main/snapd-update-services/task.yaml
index a66fe67181d..00af4cc4da3 100644
--- a/tests/main/snapd-update-services/task.yaml
+++ b/tests/main/snapd-update-services/task.yaml
@@ -21,17 +21,11 @@ prepare: |
   # Download current snapd edge
   snap download --edge snapd --basename=snapd_edge
 
-  # Repack it with currently built snapd
-  unpackdir=/tmp/snapd-update-services
-  unsquashfs -no-progress -d "${unpackdir}" snapd_edge.snap
-  dpkg-deb -x "${GOHOME}"/snapd_*.deb "${unpackdir}"
-  snap pack "${unpackdir}" --filename snapd_modified.snap
-  rm -rf "${unpackdir}"
+  # Get the snapd package built from the current branch
+  cp "$SNAPD_WORK_DIR"/snapd_snap/snapd_*.snap "$PWD/snapd_current.snap"
 
 restore: |
   rm -rf /tmp/snapd-update-services
-  rm -f snapd_edge.snap
-  rm -f snapd_modified.snap
 
 execute: |
   snap install --dangerous snapd_edge.snap
@@ -69,7 +63,7 @@ execute: |
   done
 
   # Snapd update
-  snap install --dangerous snapd_modified.snap
+  snap install --dangerous snapd_current.snap
 
   # Check the service file has been updated
   systemctl is-active snap.test-snapd-service.test-snapd-service.service