EC2 Bootstrap script not executed on Ubuntu - amazon-web-services

Question

I am trying to set bootstrap script for EC2 Ubuntu machine with below CLI commands:
#cloud-boothook
#!/bin/bash
sudo chmod 750 -R /home/
Above text is set via AWS console in user data.
Once machine has started running, change mode still not amended by above user data script.
Tried alternative command as:
Content-Type: text/cloud-boothook
Content-Type: text/x-shellscript
sudo chmod 750 -R /home/
Still directory permission is not changed.
My objective is to set user home directory with 750 change mode on machine startup.
I would appreciate any solution to this.
Here is the error message appearing for me:
[[0;32m OK [0m] Started Initial cloud-init job (pre-networking).
[[0;32m OK [0m] Reached target Network (Pre).
[[0;32m OK [0m] Started ifup for eth0.
Starting Raise network interfaces...
[[0;32m OK [0m] Started Raise network interfaces.
[[0;32m OK [0m] Reached target Network.
Starting Initial cloud-init job (metadata service crawler)...
[ 7.535726] cloud-init[1003]: Cloud-init v. 0.7.9 running 'init' at Sun, 29 Oct 2017 19:44:35 +0000. Up 7.23 seconds.
[ 7.548260] cloud-init[1003]: ci-info: ++++++++++++++++++++++++++++++++++++++Net device info++++++++++++++++++++++++++++++++++++++
[ 7.565098] cloud-init[1003]: ci-info: +--------+------+-----------------------------+---------------+-------+-------------------+
[ 7.580238] cloud-init[1003]: ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
[ 7.592760] cloud-init[1003]: ci-info: +--------+------+-----------------------------+---------------+-------+-------------------+
[ 7.602150] cloud-init[1003]: ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | . | . |
[ 7.613465] cloud-init[1003]: ci-info: | lo | True | ::1/128 | . | host | . |
[ 7.625404] cloud-init[1003]: ci-info: | eth0 | True | 172.31.19.221 | 255.255.240.0 | . | 06:ad:ba:ed:47:10 |
[ 7.635005] cloud-init[1003]: ci-info: | eth0 | True | fe80::4ad:baff:feed:4710/64 | . | link | 06:ad:ba:ed:47:10 |
[ 7.648580] cloud-init[1003]: ci-info: +--------+------+-----------------------------+---------------+-------+-------------------+
[ 7.663022] cloud-init[1003]: ci-info: +++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++
[ 7.674192] cloud-init[1003]: ci-info: +-------+-------------+-------------+---------------+-----------+-------+
[ 7.682430] cloud-init[1003]: ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags |
[ 7.690935] cloud-init[1003]: ci-info: +-------+-------------+-------------+---------------+-----------+-------+
[ 7.703027] cloud-init[1003]: ci-info: | 0 | 0.0.0.0 | 172.31.16.1 | 0.0.0.0 | eth0 | UG |
[ 7.712719] cloud-init[1003]: ci-info: | 1 | 172.31.16.0 | 0.0.0.0 | 255.255.240.0 | eth0 | U |
[ 7.719950] cloud-init[1003]: ci-info: +-------+-------------+-------------+---------------+-----------+-------+
**[ 7.728024] cloud-init[1003]: 2017-10-29 19:44:35,859 - __init__.py[WARNING]: Unhandled non-multipart (text/x-not-multipart) userdata: 'b'Content-Type: text/cloud'...'**
[[0;32m OK [0m] Started Initial cloud-init job (metadata service crawler).
[[0;32m OK [0m] Reached target Cloud-config availability.
[[0;32m OK [0m] Reached target System Initialization.
[[0;32m OK [0m] Listening on D-Bus System Message Bus Socket.
Starting Socket activation for snappy daemon.

Answer 1

You are assigning 750 permission to /home recursively.
750 means:
The Owner may read, write and execute.
The Group may read and execute. (but not write)
The world may not do anything with this file.
The /home directory itself is owned by root and is in the root group. Therefore, after recursively applying 750, only root can access the contents of /home (including other users' home directories).
Therefore, you really don't want to do that.