The following changes were made:

* Added shadow as dependency (for useradd and groupadd)
  * Removed old usher script
  * Modified client and server usher to not use chroot

SNAP/usher-client

@@ -7,8 +7,8 @@ case $1 in
     exit 0
     ;;
   postinst)
-    if [ ! -f ${TARGET}/etc/ssh/ssh_config ]; then
-      cp ${TARGET}/usr/share/openssh/ssh_config ${TARGET}/etc/ssh
+    if [ ! -f /etc/ssh/ssh_config ]; then
+      cp /usr/share/openssh/ssh_config /etc/ssh
     fi
     ;;
   prerm)