--- /usr/lib/apt/apt.systemd.daily	2022-04-08 11:22:23.000000000 +0100
+++ apt.systemd.daily	2022-06-20 10:04:00.254335303 +0100
@@ -434,6 +434,8 @@
     exit 0
 fi
 
+exit_status=0
+
 if [ "$1" = "update" ] || [ -z "$1" ] ; then
     # deal with BackupArchiveInterval
     do_cache_backup $BackupArchiveInterval
@@ -455,6 +457,7 @@
 	    UPDATED=1
 	else
 	    debug_echo "download updated metadata (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "download updated metadata (not run)."
@@ -471,6 +474,7 @@
 	    debug_echo "download upgradable (success)"
 	else
 	    debug_echo "download upgradable (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "download upgradable (not run)"
@@ -482,6 +486,7 @@
 	    debug_echo "unattended-upgrade -d (success)"
 	else
 	    debug_echo "unattended-upgrade -d (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "unattended-upgrade -d (not run)"
@@ -497,6 +502,7 @@
 	    debug_echo "unattended-upgrade (success)"
 	else
 	    debug_echo "unattended-upgrade (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "unattended-upgrade (not run)"
@@ -510,6 +516,7 @@
 	    update_stamp $CLEAN_STAMP
 	else
 	    debug_echo "clean (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "clean (not run)"
@@ -523,6 +530,7 @@
 	    update_stamp $AUTOCLEAN_STAMP
 	else
 	    debug_echo "autoclean (error)"
+	    exit_status=1
 	fi
     else
 	debug_echo "autoclean (not run)"
@@ -532,6 +540,8 @@
     check_size_constraints
 fi
 
+exit $exit_status
+
 #
 #     vim: set sts=4 ai :
 #