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      assets/Tux.png
  2. 1532
      assets/Tux.svg
  3. 135
      source/_posts/kernel-update-starting-from-compiling-the-kernel.md
  4. 6
      themes/suka/layout/_plugin/comment/valine/main.ejs
  5. 1
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  6. 30
      themes/suka/source/js/blog-186.js
  7. 192
      themes/suka/source/sw.js
  8. 2
      themes/suka/src/css/dark.scss

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---
title: 从编译内核开始的内核更新之旅
date: 2021-07-03 23:34:27
tags:
- Ubuntu
- Linux
- Debootstrap
thumbnail: /assets/Tux.png
---
正如你所见的那样, 这是一篇有关于内核 更新/编译 的文章.
<!--more-->
> 头图来自 [github:garrett/Tux](https://github.com/garrett/Tux), 使用 CC0 授权.
{% note info %}
### 0.0 提示
该文章还未写完, 写完再说 (
{% endnote %}
{% note warning %}
### 0.1 警告
本文仅为一篇 ***教程性*** 文章, 将不会讨论有关更深层次的技术问题.
若有错误, 欢迎在评论区进行指正或发送邮件至 `[email protected]`.
{% endnote %}
## 1.0 获取所需材料
你可能会需要以下物品来完成你的内核编译.
1. 一台可用的且运行 GNU/Linux 并有 Root 权限 的设备
2. 正常且快速的 Internet 链接
3. ~~空调~~ ~~快乐水~~ 正常且可用并且出问题会自己 Google 的大脑
## 1.1 启动设备
我们这里使用运行在 FireCracker / KVM 上的 Debian Buster 作为编译设备.
为了安全, 我们建议创建
```bash
# 使用 ignite 快速的创建使用 Debian Buster 的 FireCracker 系统容器.
$ sudo ignite run registry.186526.xyz/186526/ignite-debian \
--cpus 12 \
--memory 8GB \
--size 30g \
--ssh --name kernel-builder \
-k registry.186526.xyz/186526/ignite-kernel:5.10.39-amd64
INFO[0001] Created VM with ID "95b84f2c9e92ffa7" and name "kernel-builder"
INFO[0002] Networking is handled by "cni"
INFO[0002] Started Firecracker VM "95b84f2c9e92ffa7" in a container with ID "ignite-95b84f2c9e92ffa7"
INFO[0002] Waiting for the ssh daemon within the VM to start...
# 连接至该容器
$ sudo ignite ssh kernel-builder
# 创建用于内核编译的用户, 名为 builder
(inFireCrackerContainer) # adduser builder
Adding user `builder' ...
Adding new group `builder' (1000) ...
Adding new user `builder' (1000) with group `builder' ...
Creating home directory `/home/builder' ...
Copying files from `/etc/skel' ...
New password:
Retype new password:
passwd: password updated successfully
Changing the user information for builder
Enter the new value, or press ENTER for the default
Full Name []:
Room Number []:
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [Y/n] Y
```
## 1.2 安装所需编译依赖
我们这里使用的是 Debian, 使用的是 DPKG/APT 包管理.
其他发行版请参考对应文章进行编译依赖的安装.
若使用APT, 你需要加入 Source 源来完成依赖的安装.
``` bash
# 更新 APT 的缓存信息
apt update -y
# 安装 编译依赖
apt install build-essential libncurses5-dev xz-utils wget -y
apt-get build-dep linux -y
```
## 1.3 准备源代码
我们这里将会选择截止本文章编写时最新 (2021.07.03) 的 [Stable Kernel](https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.14.tar.xz) (即 5.12.14)
你可以在 [kernel.org](https://kernel.org) 选择所需 Kernel 来编译.
``` Bash
# 进入 builder 账户
su - builder
# 下载 linux-5.12.14.tar.xz 源码文件
mkdir -p build && cd build && wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.14.tar.xz
# 解压内核源码
tar xvf linux-5.12.14.tar.xz && cd linux-5.12.14
```
## 2.1 配置内核
配置内核是个细心活, 你可能能需要大量的时间和精力来配置一个针对你设备最好的内核.
如果你觉得你很懒, 你可以选择我在这里配置好的针对 KVM/QEMU 环境的内核配置.
你也可以在 `/boot/config-$(uname -r)` 中找到你当前内核的配置.
```bash
# 我们这里选择下载
```

6
themes/suka/layout/_plugin/comment/valine/main.ejs

@ -50,10 +50,8 @@
valinenow();
}
}
document.dispatchEvent(new window.Event("LoadValine"));
valinedo();
if(!window.whenAvailable){
let whenAvailable = function(name, callback){
window.whenAvailable = function(name, callback){
var interval = 100;
window.setTimeout(function () {
if (window[name]) {
@ -64,4 +62,6 @@
}, interval);
}
}
document.dispatchEvent(new window.Event("LoadValine"));
valinedo();
</script>

1
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@ -0,0 +1 @@
../../../assets

30
themes/suka/source/js/blog-186.js

@ -35,13 +35,13 @@
return;
}
if (!window.dataLayer) {
var d = document,
a = d.createElement("script");
a.async = true;
a.src = "https://www.googletagmanager.com/gtag/js?id=G-ENYRL7T64N";
d.head.appendChild(a);
}
(function(e,t,n,i,s,a,c){e[n]=e[n]||function(){(e[n].q=e[n].q||[]).push(arguments)}
;a=t.createElement(i);c=t.getElementsByTagName(i)[0];a.async=true;a.src=s
;c.parentNode.insertBefore(a,c)
})(window,document,"galite","script","https://cdn.jsdelivr.net/npm/[email protected]/dist/ga-lite.min.js");
galite('create', 'UA-174554903-1', 'auto');
galite('send', 'pageview');
if (typeof navigator.connection !== "undefined") {
if (navigator.connection.rtt <= 600 & navigator.connection.downlink >= 0.5) {
@ -53,14 +53,6 @@
setTimeout(fontsInit, 1000);
}
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag('js', new Date());
gtag('config', 'G-ENYRL7T64N');
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var fontsInit = function fontsInit() {
@ -82,14 +74,6 @@
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new LazyLoad(globalThis.lazyLoadOptions);
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window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
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gtag('js', new Date());
gtag('config', 'G-ENYRL7T64N');
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document.addEventListener('LoadValine', function () {

192
themes/suka/source/sw.js

@ -5,11 +5,11 @@ workbox.setConfig({
});
const { core, precaching, routing, strategies, expiration, cacheableResponse, backgroundSync } = workbox;
const { CacheFirst, NetworkFirst, NetworkOnly } = strategies;
const { CacheFirst, NetworkFirst, NetworkOnly,StaleWhileRevalidate } = strategies;
const { ExpirationPlugin } = expiration;
const { CacheableResponsePlugin } = cacheableResponse;
const cacheSuffixVersion = '-210703a',
const cacheSuffixVersion = '-210703b',
// precacheCacheName = core.cacheNames.precache,
// runtimeCacheName = core.cacheNames.runtime,
maxEntries = 100;
@ -196,194 +196,6 @@ routing.registerRoute(
"POST"
)
const assert_js = core._private, cacheNames_js = core._private, cacheWrapper_js = core._private, fetchWrapper_js = core._private, getFriendlyURL_js = core._private, logger_js = core._private, WorkboxError_js = core._private;
const cacheOkAndOpaquePlugin = {
/**
* Returns a valid response (to allow caching) if the status is 200 (OK) or
* 0 (opaque).
*
* @param {Object} options
* @param {Response} options.response
* @return {Response|null}
*
* @private
*/
cacheWillUpdate: async ({
response
}) => {
if (response.status === 200 || response.status === 0) {
return response;
}
return null;
}
};
const messages = {
strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL_js.getFriendlyURL(request.url)}'`,
printFinalResponse: response => {
if (response) {
}
}
};
class StaleWhileRevalidate {
/**
* @param {Object} options
* @param {string} options.cacheName Cache name to store and retrieve
* requests. Defaults to cache names provided by
* [workbox-core]{@link module:workbox-core.cacheNames}.
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
* to use in conjunction with this caching strategy.
* @param {Object} options.fetchOptions Values passed along to the
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
* of all fetch() requests made by this strategy.
* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
*/
constructor(options = {}) {
this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
this._plugins = options.plugins || [];
if (options.plugins) {
const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
} else {
// No plugins passed in, use the default plugin.
this._plugins = [cacheOkAndOpaquePlugin];
}
this._fetchOptions = options.fetchOptions;
this._matchOptions = options.matchOptions;
}
/**
* This method will perform a request strategy and follows an API that
* will work with the
* [Workbox Router]{@link module:workbox-routing.Router}.
*
* @param {Object} options
* @param {Request|string} options.request A request to run this strategy for.
* @param {Event} [options.event] The event that triggered the request.
* @return {Promise<Response>}
*/
async handle({
event,
request
}) {
const logs = [];
if (typeof request === 'string') {
request = new Request(request);
}
const fetchAndCachePromise = this._getFromNetwork({
request,
event
});
let response = await cacheWrapper_js.cacheWrapper.match({
cacheName: this._cacheName,
request,
event,
matchOptions: this._matchOptions,
plugins: this._plugins
});
let error;
if (response) {
{
logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache. Will update with the network response in the background.`);
}
if (event) {
try {
event.waitUntil(fetchAndCachePromise);
} catch (error) {
{
}
}
}
} else {
{
logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will wait for the network response.`);
}
try {
response = await fetchAndCachePromise;
} catch (err) {
error = err;
}
}
{
for (const log of logs) {
}
messages.printFinalResponse(response);
}
if (!response) {
throw new WorkboxError_js.WorkboxError('no-response', {
url: request.url,
error
});
}
return response;
}
/**
* @param {Object} options
* @param {Request} options.request
* @param {Event} [options.event]
* @return {Promise<Response>}
*
* @private
*/
async _getFromNetwork({
request,
event
}) {
const response = await fetchWrapper_js.fetchWrapper.fetch({
request,
event,
fetchOptions: this._fetchOptions,
plugins: this._plugins
});
const responseRealClone = response.clone();
const responseClone = new Response(await responseRealClone.blob(), {
status: responseRealClone.status,
statusText: responseRealClone.statusText,
headers: {
...Object.fromEntries(responseRealClone.headers.entries()),
"server": '186526 Edge',
}
});
const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
cacheName: this._cacheName,
request,
response: responseClone,
event,
plugins: this._plugins
});
if (event) {
try {
event.waitUntil(cachePutPromise);
} catch (error) {
{
}
}
}
return response;
}
}
const StaleWhileRevalidateInstance = new StaleWhileRevalidate();
/*
* Others img

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themes/suka/src/css/dark.scss

@ -92,7 +92,7 @@
background-color: #252d38 !important;
}
.v[data-class="v"] .vsys,
.v[data-class="v"] .vtime {
.v[data-class="v"] .vtime ,.v[data-class=v] .status-bar, .v[data-class=v] .veditor, .v[data-class=v] .vinput, .v[data-class=v] p, .v[data-class=v] pre code{
color: hsla(0, 0%, 100%, 0.86) !important;
}
.bg-gray {
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