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How to install Ubuntu with LUKS Encryption on LVM

My work requires us to have full-disk encryption, so these are the steps I use.

The basic idea is to create a LUKS-encrypted partition which is used as an LVM Physical Volume.

The GRUB boot partition isn't encrypted, but everything else is.

These steps tested and working on 22.04 (jammy) and 20.04 (focal).

haowen-xu

from copy import copy
from collections import deque

"""
方向定义: 1 为正面，顺时针

       3
    2     4
       1

haowen-xu

import random

import click
import numpy as np
import seaborn as sns
from matplotlib import pyplot as plt


角色概率 = np.array(
    [0.006] * 73 +  # 1 ~ 73

haowen-xu

#!/bin/bash

while [ "1" = "1" ]; do
    "$@" && exit 0
    sleep 1
done

haowen-xu

def real_to_hex(x, k=16):
    assert(0 <= x < 1)
    s = ['0.']
    for i in range(k):
        y = int(x * 16)
        s.append(hex(y)[2:])
        x = x * 16 - y
    return ''.join(s).rstrip('0')

haowen-xu

#include <stdio.h>
#include <string.h>

const int MAX_HASH_COUNT = 1001;
const int MAX_FREE_NODES = 10000;
const int NOT_FOUND = -1;

struct Bucket {
  int key;
  int value;

haowen-xu

import random


def random_k(start, end, k):
    seq = list(range(start, end))
    if len(seq) < k:
        raise ValueError('k too large.')
    n = len(seq)

    for i in range(0, min(k + 1, n - 1)):

haowen-xu

#!/usr/bin/env python

import subprocess
from xml.etree import ElementTree

tree = ElementTree.parse('wordpress.xml')
namespaces = {
    'content': 'http://purl.org/rss/1.0/modules/content/',
    'wp': 'http://wordpress.org/export/1.2/',
}