dllud

#!/bin/bash

# This is a script to transform a PDF containing a scanned book into a searchable PDF.
# Based on previous script and many good tips by Konrad Voelkel:
# http://blog.konradvoelkel.de/2010/01/linux-ocr-and-pdf-problem-solved/
# http://blog.konradvoelkel.de/2013/03/scan-to-pdfa/
# Depends on convert (ImageMagick), pdftk and hocr2pdf (ExactImage).
# $ sudo apt-get install imagemagick pdftk exactimage
# You also need at least one OCR software which can be either tesseract or cuneiform.
# $ sudo apt-get install tesseract-ocr

philippelatulippe

I'm experimenting with sharing my notes for dead-end projects like these. Maybe they'll be useful for someone who stumbles on them.

I have a Nexus 4, I'm hoping to run CM and Firefox OS. I want CM auto-updates to work, I'd rather not build my own kernel. It needs to be completely open source, with no dubious binaries to download.

• Ubuntu Phone has a tool for dual-booting with android. The details make it sound quite simple.
• The state of the art seems to be MultiRom which uses kexec.

MultiRom

Interrupts boot process with an OS picker, then uses kexec to run the other OS.

varqox

Instructions how to install Debian using debootstrap. Below instructions were verified to work with debootstrapping Debian 11.

Table of contents

1. Conventions
2. Essential steps
   1. Install debootstrap
   2. Prepare disk for installing boot loader
      • BIOS systems

• GPT specific instructions

GAS85

As per https://www.htpcguides.com/force-torrent-traffic-vpn-split-tunnel-debian-8-ubuntu-16-04/, but with few upgrades.

Everything in one script: https://github.com/GAS85/pia/blob/master/split_tunnel_VPN.sh

Supported Systems:

• Ubuntu 16.04
• Ubuntu 18.04
• Ubuntu 20.04 - DNS issue, different mechanism, read comments.
• Ubuntu 22.04 - DNS issue, different mechanism, read comments.

judy2k

#!/usr/bin/env python3

import argparse
from random import randint, choice

def uk():
    return randint(447700900000, 447700900999+1)


def us_area_code(): 

reillysiemens

Signing VirtualBox Kernel Modules

These are the steps I followed enable VirtualBox on my laptop without disabling UEFI Secure Boot. They're nearly identical to the process described on [Øyvind Stegard's blog][blog], save for a few key details. The images here are borrowed from the [Systemtap UEFI Secure Boot Wiki][systemtap].

1. Install the VirtualBox package (this might be different for your platform).

   src='https://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo'

HardenedArray

# OBJECTIVE:  Install Arch Linux with encrypted root and swap filesystems with an ENCRYPTED BOOT and boot from UEFI.  We will
also decrypt and mount our entire encrypted system using a single LUKS passphrase entry.

# Note:  This method supports both dedicated Arch installs and those who wish to install Arch on a multi-OS-UEFI booting system.

# External USB HDD/SSD Installers Notes:  Encrypted Arch installs can be booted and run from an external USB HDD or SSD, but
# only when the installation is correctly set up.  There are several necessary changes to my standard procedure you'll want
# to make during the install process.  Read my External USB HDD/SSD Installation section below before proceeding.

gbrlsnchs

Installation guide for Void Linux with LUKS-encrypted btrfs root

NOTE

I have ported this Gist to a handbook. I'll not maintain this Gist anymore, but will keep it here for future references. You can access the respective chapter in the handbook here.

Introduction

In this guide you will find:

• btrfs with Zstandard compression
• LUKS-encrypted root and swapfile
• GRUB with UEFI

luispabon

• Based on https://gist.github.com/mdziekon/221bdb597cf32b46c50ffab96dbec08a
• Installation date: 16-08-2019
• Additional notes based on my own experience
• EFI boot
• Ubuntu 19.04 -> 21.04
• This should work on any computer. Only the RAID > AHCI change described below and the device name for the nvme ssd drive are specific to this laptop.
• The process describes a completely fresh installation with complete repartitioning, however it should work fine when Windows is already installed (eg. brand new machine with Windows preinstalled) as long as Windows already boots with EFI.
• The process was conducted on Dell's XPS 15 9560 (2017) with specs:
• CPU: i7-7700HQ

da-n

Configuration for passwordless root filesystem

Source: https://www.howtoforge.com/tutorial/passwordless-encryption-of-linux-root-partition/

The process of entering the passphrase at boot time will now be automated using an USB memory stick. Instead of using a passphrase , the secret key on the USB will decrypt the encrypted volumes. Connect an USB stick to the VM and locate it using the dmesg command. It is detected as /dev/sdb in my VM.

The secret key of 8192 random byte is extracted from the usb stick using the dd command.

dd if=/dev/sdb of=/root/secret.key bs=512 skip=4 count=16