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Occasionally we will deploy a virtual instance into our KVM infrastructure and realize after the fact that we need more local disk space available. This is the process we use to expand the disk image. This process assumes the following:

You're using legacy disk partitions. The process for LVM is similar and I will describe that in another post.
The partition you need to resize is the last partition on the disk.

This process will work with either a qcow2 or raw disk image. For

Installing multipath tools on PVE Cluster with shared storage

This cheatsheet shows how to install and configure multipath tools on Proxmox PVE Cluster where multiple nodes share single storage with multipath configuration, for example SAN storage connected to each of the nodes by two independent paths.

Proxmox PVE version

This cheatsheet has been tested on Proxmox 5.x.

Note about sudo

I do not prepend sudo command to any of commands listed here, but keep in mind that nearly all commands requires su privileges, so use sudo if your account happen to not have root access.

MOVE TO HERE

注意以下命令，需要切换到 root 后运行

安装 docker

首先确定已经安装完成 docker，如果没有安装可以使用以下脚本快速安装并配置：

Intel for display, NVIDIA for computing

This guide will show you how to use Intel graphics for rendering display and NVIDIA graphics for CUDA computing on Ubuntu 18.04 desktop.

I made this work on an ordinary gaming PC with two graphics devices, an Intel UHD Graphics 630 plus an NVIDIA GeForce GTX 1080 Ti. Both of them can be shown via lspci | grep VGA.

00:02.0 VGA compatible controller: Intel Corporation Device 3e92
01:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)

KVM OSX Guest SMC Read

2015-02-20: OX 10.10.5 on Apple hardware can successfully build
NOTE: Credit and thanks to Amit Singh
Reference:

http://www.osxbook.com/book/bonus/chapter7/tpmdrmmyth/

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	#!/bin/bash

	# Use $ which youtube-dl to get the path.
	youtube_dl_path=/usr/local/bin/youtube-dl

	# https://askubuntu.com/a/157787
	if ps aux \| grep -v grep \| grep $youtube_dl_path > /dev/null
	then
	echo "youtube-dl is running"
	exit 1

 # applescript
 # add login item
 osascript -e 'tell application "System Events" to make login item at end with properties {name: "Notes",path:"/Applications/Notes.app", hidden:false}'
 # delete login item
 osascript -e 'tell application "System Events" to delete login item "itemname"'
 # list loginitems
 osascript -e 'tell application "System Events" to get the name of every login item'

	#!/bin/bash

	# Reference guides:
	# https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF
	# https://pve.proxmox.com/wiki/Pci_passthrough
	# https://pve.proxmox.com/wiki/Nested_Virtualization

	# Remember to turn on SVM in BIOS and disable CSM

	# Update packages

	Debug 15 hrs 15 mins ██████▏░░░░░░░░░░░░░░ 29.3%
	TypeScript 12 hrs 6 mins ████▉░░░░░░░░░░░░░░░░ 23.2%
	Other 10 hrs 36 mins ████▎░░░░░░░░░░░░░░░░ 20.4%
	Vue.js 6 hrs 29 mins ██▌░░░░░░░░░░░░░░░░░░ 12.5%
	JavaScript 4 hrs 36 mins █▊░░░░░░░░░░░░░░░░░░░ 8.8%