darkguy2008

Ubuntu 22.04 LTS post-install steps / snippets / scripts

Install Ubuntu as Ubuntu Server (minimized)

Delete user (if any)

sudo deluser --remove-home user

Add swap

darkguy2008

Mappings for DMI/SMBIOS to Linux and dmidecode

Information can be put into dmi tables via some qemu-system hosts (x86_64 and aarch64). That information is exposed in Linux under /sys/class/dmi/id and can be read with dmidecode. The names are very annoyingly inconsistent. The point of this doc is to map them.

Mappings

Example qemu cmdline:

qemu-system-x86_64 -smbios type=<type>,field=value[,...]

qemu-system-x86_64 -smbios type=0,vendor=superco,version=1.2.3

darkguy2008

KVM OSX Guest 10.11 (El Capitan) with Clover

• Some notes about this approach:
  • An OSX Installer USB drive for Install OS X El Capitan is created
  • Clover is then installed on the USB drive
  • Clover Configurator is then run on the USB drive
  • The USB drive contents are copied to the VM host
  • VNC is used to connect to the guest UI
• The qxl virtual video device is used (part of the standard kvm qemu install)

darkguy2008

Ref: https://peter.quantr.hk/2012/12/how-to-change-fedoras-font-rendering-to-get-an-ubuntu-like-result/#page-content

1) xrdb -query | grep -i xft

Make sure it looks like this:

Xft.antialias:  1
Xft.hinting:    1
Xft.hintstyle:  hintslight
Xft.lcdfilter:  lcddefault

darkguy2008

wget -O /tmp/YaHei.Consolas.1.12.zip https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/uigroupcode/YaHei.Consolas.1.12.zip
unzip /tmp/YaHei.Consolas.1.12.zip
sudo mkdir -p /usr/share/fonts/consolas
sudo mv YaHei.Consolas.1.12.ttf /usr/share/fonts/consolas/
sudo chmod 644 /usr/share/fonts/consolas/YaHei.Consolas.1.12.ttf
cd /usr/share/fonts/consolas
sudo mkfontscale && sudo mkfontdir && sudo fc-cache -fv

darkguy2008

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace UDP
{
    public class UDPSocket
    {
        private Socket _socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);