Jimmy Hooker hisnameisjimmy

Dual‑Boot Playbook — Lenovo T490s

Windows 11 + Arch/Omarchy (2025)

This is the result of a lot of back and forth with ChatGPT o3 along with my own troubleshooting. While this contains a fair amount of detail, I would probably recommend starting with this as part of your prompt and have ChatGPT walk you through it. I don't totally understand why Linux Boot Manager didn't install, or why the partition references got screwed up when I moved them around when resizing the ESP. Regardless, this works!

0 Prerequisites

| Item | Notes |

	#!/bin/sh
	# Replace the website for your own, and you can extract all sitemap files from a parent sitemap file.
	#

	# Into their own individual sitemap section files:
	number=1;
	for i in $(curl https://website.com/sitemap.xml \| sitemap-urls);
	do curl -s -N $i \| sitemap-urls > ~/Desktop/sitemap-output/map-$number.txt;
	number=$(($number+1));
	done

	To see the list before deleting:
	find -E . -regex '.*\-[0-9]{1,4}\x[0-9]{1,4}\.(png\|gif\|jpg)$' > ./duplicates.txt

	To delete:
	find -E . -regex '.*\-[0-9]{1,4}\x[0-9]{1,4}\.(png\|gif\|jpg)$' -delete

	Run a find/replace on your mysqldump backup (and create a backup of that) to remove references to alternate wordpress files:
	sed -i .bak -E 's#\-[0-9]{1,4}\x[0-9]{1,4}##g' backup.sql

	# Add the following to the bottom of /etc/ssh/sshd_config
	# This makes it so any user with the group sftponly only has access to
	# their chrooted home directory and forces internal-sftp. In this situation,
	# we're going to make the home directory the chroot. We'll also
	# comment out PasswordAuthentication so that we don't run into issues there.
	# This setup will prevent shell access as long as you use the script over here:
	# https://gist.github.com/hisnameisjimmy/a3cbc5c7c925ce8854afa350cb01cfe4


	#

	#!/bin/bash
	#
	# Use this guide for initial setup:
	# https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-16-04
	#
	# Install fail2ban
	# apt install fail2ban
	#
	# Disable Root Login
	# sudo vim /etc/ssh/sshd_config

	#!/bin/sh
	#
	# This script stands on the shoulders of giants.
	#
	# You can always find the most recent version here: https://gist.github.com/hisnameisjimmy/56f9414076ca39a79bfa07eefa89759e
	#
	# It is written and tested for Ubuntu 16.04 on Digital Ocean using a 1GB droplet.
	# Anything less than 1GB of memory may cause issues with anything memory intensive
	# like imports/exports.
	#

	# Run this from the root directory of your project. It takes the list of outdated packages, skips the first row (since that will be
	# the header row), and runs a loop on the package names that updates and saves them.

	for i in $(npm outdated \| awk 'FNR > 1 {print $1}'); do npm update --save $i; done