set user password with passwd, chpasswd does not work for some reason

bootstrap

@@ -181,14 +181,14 @@ set_user() {
     user_name="$(get_value "user_name" "username")"
     
     local user_pw
-    user_pw="$(get_value "user_pw" "user password")"
+    user_pw="$(get_value "user_pw" "user password" 1)"
 
     chroot /mnt /bin/env -i \
            user_name="$user_name" \
            user_pw="$user_pw" \
            /bin/bash <<"EOT"
 useradd --groups wheel --create-home --shell /bin/bash --user-group $user_name
-echo "$user_name:$user_pw" | chpasswd
+echo -e "$user_pw\n$user_pw" | passwd "$user_name"
 EOT
 }