diff --git a/13/alpine3.20/docker-entrypoint.sh b/13/alpine3.20/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/13/alpine3.20/docker-entrypoint.sh
+++ b/13/alpine3.20/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/13/alpine3.21/docker-entrypoint.sh b/13/alpine3.21/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/13/alpine3.21/docker-entrypoint.sh
+++ b/13/alpine3.21/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/13/bookworm/docker-entrypoint.sh b/13/bookworm/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/13/bookworm/docker-entrypoint.sh
+++ b/13/bookworm/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/13/bullseye/docker-entrypoint.sh b/13/bullseye/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/13/bullseye/docker-entrypoint.sh
+++ b/13/bullseye/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/14/alpine3.20/docker-entrypoint.sh b/14/alpine3.20/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/14/alpine3.20/docker-entrypoint.sh
+++ b/14/alpine3.20/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/14/alpine3.21/docker-entrypoint.sh b/14/alpine3.21/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/14/alpine3.21/docker-entrypoint.sh
+++ b/14/alpine3.21/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/14/bookworm/docker-entrypoint.sh b/14/bookworm/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/14/bookworm/docker-entrypoint.sh
+++ b/14/bookworm/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/14/bullseye/docker-entrypoint.sh b/14/bullseye/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/14/bullseye/docker-entrypoint.sh
+++ b/14/bullseye/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/15/alpine3.20/docker-entrypoint.sh b/15/alpine3.20/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/15/alpine3.20/docker-entrypoint.sh
+++ b/15/alpine3.20/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/15/alpine3.21/docker-entrypoint.sh b/15/alpine3.21/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/15/alpine3.21/docker-entrypoint.sh
+++ b/15/alpine3.21/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/15/bookworm/docker-entrypoint.sh b/15/bookworm/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/15/bookworm/docker-entrypoint.sh
+++ b/15/bookworm/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/15/bullseye/docker-entrypoint.sh b/15/bullseye/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/15/bullseye/docker-entrypoint.sh
+++ b/15/bullseye/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/16/alpine3.20/docker-entrypoint.sh b/16/alpine3.20/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/16/alpine3.20/docker-entrypoint.sh
+++ b/16/alpine3.20/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/16/alpine3.21/docker-entrypoint.sh b/16/alpine3.21/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/16/alpine3.21/docker-entrypoint.sh
+++ b/16/alpine3.21/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/16/bookworm/docker-entrypoint.sh b/16/bookworm/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/16/bookworm/docker-entrypoint.sh
+++ b/16/bookworm/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/16/bullseye/docker-entrypoint.sh b/16/bullseye/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/16/bullseye/docker-entrypoint.sh
+++ b/16/bullseye/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/17/alpine3.20/docker-entrypoint.sh b/17/alpine3.20/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/17/alpine3.20/docker-entrypoint.sh
+++ b/17/alpine3.20/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/17/alpine3.21/docker-entrypoint.sh b/17/alpine3.21/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/17/alpine3.21/docker-entrypoint.sh
+++ b/17/alpine3.21/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/17/bookworm/docker-entrypoint.sh b/17/bookworm/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/17/bookworm/docker-entrypoint.sh
+++ b/17/bookworm/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/17/bullseye/docker-entrypoint.sh b/17/bullseye/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/17/bullseye/docker-entrypoint.sh
+++ b/17/bullseye/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index d09b5388a0..ae40666ca1 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -269,6 +269,9 @@ docker_temp_server_start() {
 	# does not listen on external TCP/IP and waits until start finishes
 	set -- "$@" -c listen_addresses='' -p "${PGPORT:-5432}"
 
+	# unset NOTIFY_SOCKET so the temporary server doesn't prematurely notify
+	# any process supervisor.
+	NOTIFY_SOCKET= \
 	PGUSER="${PGUSER:-$POSTGRES_USER}" \
 	pg_ctl -D "$PGDATA" \
 		-o "$(printf '%q ' "$@")" \