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Relocate an existing libvirtd (KVM) images directory

By default, KVM (libvirtd) images on Ubuntu and most other Linux distributions are found in /var/lib/libvirt/images. This can be inconvenient if you don't have a separate /var partition that can grow over time to accommodate multiple large images.

You can simply rename the images folder to something else and then symlink to a larger space with it (e.g. ln -s /data1/libvirt/images /var/lib/libvirt/images). That's what I used to do.

But that can lead to all sorts of unanticipated trouble. The right way to have your images on a bigger disk is to change the path for libvirt's default storage pool to a partition on that big disk, which is logically where KVM is going to create them.

First check to make sure a default pool exists:

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#!/usr/bin/env bash

sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt update

sudo update-alternatives --remove-all clang
sudo apt-get install -y clang-3.9 clang-4.0 clang-5.0 clang-6.0

sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-3.9 10
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-4.0 20

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#!/usr/bin/env bash

## Author: Abidán Brito
## This script builds GNU Emacs 29.1 with support for native elisp compilation,
## tree-sitter, libjansson (C JSON library), pure GTK and mailutils.

# Exit on error and print out commands before executing them.
set -euxo pipefail

# Let's set the number of jobs to something reasonable; keep 2 cores

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Build Emacs with MSYS2

This document is an up-to-date guide on compile Emacs 31 on windows with MSYS2, and make a installation with native compile that can work without MSYS2.

The idea is after get a working Emacs, you may delete MSYS2 environment to free some disk space, and forget about rebuilding Emacs

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Install pyenv

$ brew update
$ brew install pyenv

Check available versions and install

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Oh my zsh.

Install ZSH.

sudo apt install zsh-autosuggestions zsh-syntax-highlighting zsh

Install Oh my ZSH.

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;; The following packages are needed:
;; 1. elfeed and elfeed-score (available from the rss doom module)
;; 2. citar
;; 3. org-ref
;; 4. org-roam and org-roam-bibtex


(defconst x/bib-libraries (list "~/.org.d/bib/x-lib.bib" "~/.org.d/bib/x-temp-lib.bib")) ; All of my bib databases.
(defconst x/main-bib-library (nth 0 x/bib-libraries))         ; The main db is always the first
(defconst x/main-pdfs-library-paths `("~/.org.d/bib/pdfs/" "/home/x/.org.d/bib/temp-pdfs/")) ; PDFs directories in a list