Ahmed Al-Hulaibi ahmedalhulaibi

Ubuntu 24.04

From the comments: "These exact instructions are not working on Ubuntu 24.04. Ubuntu has changed the naming of ZFS partitions, partition 2 and 3 are switched around, and the boot/efi folder is now different."

I don't have my dual-disk test system any longer, and so can't adjust these steps myself.

Overview

Ubuntu Desktop 20.04 supports a single ZFS boot drive out of the box. I wanted a ZFS mirror, without going through an entirely manual setup of Ubuntu as described by OpenZFS in their instructions for Ubuntu 20.04 and instructions for Ubuntu 22.04

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This kind of mindset is crucial to managing your career, because when you start to think of yourself as a business, you start to make good business decisions.

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Every step you take without a clear direction is a wasted step. Don’t randomly walk through life without a purpose for your career.

Your big goal should be something not too specific, but clear enough that you can know if you’re steering toward it or not. Think about what you want to ultimately do with your career.

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

WARNING: If you're reading this in 2021 or later, you're likely better served by reading:

(This gist was created in 2013 and targeted the legacy GOPATH mode.)

$ ssh -A vm
$ git config --global url."[email protected]:".insteadOf "https://github.com/"

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	By default, EBPF programs will not run on WSL2 due to required kernel modules missing. The following example error is an
	indication of this problem:
	modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/4.19.84-microso
	ft-standard/modules.dep.bin'
	modprobe: FATAL: Module kheaders not found in directory /lib/modules/4.19.84-microsoft-standard
	chdir(/lib/modules/4.19.84-microsoft-standard/build): No such file or directory

	To fix this you need to rebuild the WSL2 kernel with the missing kernel modules. The below instructions are for Ubuntu 18.04 WSL2.

	1. git clone https://github.com/microsoft/WSL2-Linux-Kernel.git

	package main

	import (
	"bufio"
	"bytes"
	"encoding/binary"
	"flag"
	"fmt"
	"net"
	"os"

	// Copyright (c) 2017 Ismael Celis

	// Permission is hereby granted, free of charge, to any person obtaining a copy
	// of this software and associated documentation files (the "Software"), to deal
	// in the Software without restriction, including without limitation the rights
	// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	// copies of the Software, and to permit persons to whom the Software is
	// furnished to do so, subject to the following conditions:

	// The above copyright notice and this permission notice shall be included in all