diff --git a/debian/changelog b/debian/changelog
index 6bf1b718..0ebdecf4 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (2.677) groovy; urgency=medium
+
+  * Avoid rbind /sys for chroot snap pre-seeding (cgroups fail to unmount)
+
+ -- Robert C Jennings <robert.jennings@canonical.com>  Sat, 18 Jul 2020 16:51:05 -0500
+
 livecd-rootfs (2.676) groovy; urgency=medium
 
   * apparmor: Add generic v5.4 kernel apparmor features
diff --git a/live-build/auto/build b/live-build/auto/build
index 2d3e2431..4cd879bd 100755
--- a/live-build/auto/build
+++ b/live-build/auto/build
@@ -119,7 +119,8 @@ preinstall_snaps() {
 	fi
 
 	mount --rbind /dev chroot/dev
-	mount --rbind /sys chroot/sys
+	mount --bind /sys chroot/sys
+	mount --bind /sys/kernel/security chroot/sys/kernel/security
 	mount --bind /proc chroot/proc
 	# Provide more up to date apparmor features, matching target kernel
 	mount -o bind /usr/share/livecd-rootfs/live-build/apparmor/generic chroot/sys/kernel/security/apparmor/features