Create a .profile for fun

rootfs_overlay/etc/init.d/S98

@@ -1,6 +1,5 @@
 #!/bin/sh
-echo 'S98'
-# insmod /hello.ko
+echo "hello S98"
 if [ -n "$lkmc_eval" ]; then
   eval "$lkmc_eval"
 fi

rootfs_overlay/root/.profile

@@ -0,0 +1,4 @@
+# https://unix.stackexchange.com/questions/176027/ash-profile-configuration-file
+echo "hello $(pwd)/.profile"
+# Does not inherit init environment variables.
+#env