1 files changed, 4 insertions, 0 deletions
diff --git a/update.sh b/update.sh
index bbae5928..08d0af44 100755
--- a/update.sh
+++ b/update.sh
@@ -49,6 +49,10 @@ EXCL_DOCKER+="
 nc-update.sh
 nc-autoupdate-ncp.sh
 "
+
+# wait for other apt processes
+test -f /var/lib/apt/lists/lock && { echo "apt is currently running. Try again later";  exit 1; }
+
 cp etc/library.sh /usr/local/etc/
 
 source /usr/local/etc/library.sh