Ubuntu postinstall

Things to do after installing

Make software repo point to NCHC for faster network speed¶

You can replace archive.ubuntu.com with a closer mirror, e.g., tw.archive.ubuntu.com or free.nchc.org.tw in /etc/apt/sources.list.d/ubuntu.sources. After you are done, run:

sudo apt clean && sudo apt update && sudo apt full-upgrade -y

Install 3rd party apps¶

First, install required package

sudo apt update && sudo apt install -y apt-transport-https ca-certificates curl git gnupg-agent software-properties-common

Brave browser¶

Setup Brave browser

sudo curl -fsSLo /usr/share/keyrings/brave-browser-archive-keyring.gpg https://brave-browser-apt-release.s3.brave.com/brave-browser-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/brave-browser-archive-keyring.gpg arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main" | sudo tee /etc/apt/sources.list.d/brave-browser-release.list > /dev/null
sudo apt update && sudo apt install -y brave-browser

Git¶

sudo add-apt-repository -y ppa:git-core/ppa
sudo apt update && sudo apt install -y git git-lfs

qBittorrent¶

sudo add-apt-repository -y ppa:qbittorrent-team/qbittorrent-stable
sudo apt update && sudo apt install -y qbittorrent

Telegram messenger¶

Download and run the official binaries.

Xanmod Linux kernel¶

Xanmod is a general-purpose Linux kernel distribution with custom settings and new features.

curl -fsSL https://dl.xanmod.org/gpg.key | sudo gpg --dearmor -o /usr/share/keyrings/xanmod-keyring.gpg
echo 'deb [signed-by=/usr/share/keyrings/xanmod-keyring.gpg] http://deb.xanmod.org releases main' | sudo tee /etc/apt/sources.list.d/xanmod-kernel.list > /dev/null
sudo apt update && sudo apt install -y linux-xanmod

AMD and Intel open-source GPU library (Mesa)¶

Install the latest Mesa open source GPU drivers from the kisak PPA

sudo add-apt-repository -y ppa:kisak/kisak-mesa
sudo apt update && sudo apt full-upgrade -y

Wine and 32-bit games support¶

sudo dpkg --add-architecture i386

sudo mkdir -pm755 /etc/apt/keyrings
sudo wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key

sudo wget -NP /etc/apt/sources.list.d/ https://dl.winehq.org/wine-builds/ubuntu/dists/noble/winehq-noble.sources
sudo apt update && sudo apt install wine

Kubuntu backports¶

Kubuntu backports: Latest versions of KDE framework and APPs

sudo add-apt-repository -y ppa:kubuntu-ppa/backports
sudo apt-get update && sudo apt full-upgrade -y

Latest kernel¶

Install Hardware Enablement (HWE) kernels: https://ubuntu.com/kernel/lifecycle

sudo apt install --install-recommends linux-generic-hwe-$VERSION

Where $VERSION is the Ubuntu version.

Update your system and install packages¶

sudo apt update && sudo apt full-upgrade -y

Ubuntu:

sudo apt install -y git git-lfs cifs-utils ssh nala gnome-shell-extension-manager parallel baobab ncdu synaptic apt-xapian-index ppa-purge ubuntu-restricted-extras ffmpeg vlc mcomix fonts-wqy-microhei fonts-wqy-zenhei fonts-open-sans ttf-mscorefonts-installer zsh btrfs-compsize

Kubuntu:

sudo apt install -y git git-lfs cifs-utils ssh nala parallel ncdu kio-extras gnome-keyring ppa-purge kubuntu-restricted-extras ffmpeg vlc fonts-wqy-microhei fonts-wqy-zenhei fonts-open-sans ttf-mscorefonts-installer zsh btrfs-compsize synaptic apt-xapian-index

System tweaks¶

Fix locales¶

Uncomment the zh_TW line in /etc/locale.gen. Then run:

sudo locale-gen

Finally, install the Traditional Chinese locale in Language Support and then set locale to Taiwan.

(Optional) Remove snap¶

List snap packages

snap list

Uninstall each Snap package

sudo snap remove --purge $PKG

Stop the snapd service and uninstall it

sudo systemctl stop snapd
sudo apt remove --autoremove --purge snapd
sudo apt-mark hold snapd

Terminal¶

Nerd fonts
denysdovhan/one-gnome-terminal : One Dark color theme for gnome-terminal

Temporary files in RAM disk¶

Setting tmpfs (RAM disk) for /tmp folder:

sudo cp -v /usr/share/systemd/tmp.mount /etc/systemd/system/
sudo systemctl enable tmp.mount

Disable Extended Security Maintenance (ESM)¶

sudo mv /etc/apt/apt.conf.d/20apt-esm-hook.conf /etc/apt/apt.conf.d/20apt-esm-hook.conf.disabled

Disable cloud-init¶

sudo touch /etc/cloud/cloud-init.disabled

Automatic updates¶

sudo apt install unattended-upgrades
sudo dpkg-reconfigure -plow unattended-upgrades

Gnome shell extensions¶

YOu can also search and install extensions via gnome-shell-extension-manager

User themes
Lock Keys
Applications Menu : a category-based menu for applications.
Dash to panel : an icon taskbar for Gnome Shell.
Arc Menu an application menu for GNOME Shell
Material shell tiling windows.

Kubuntu System Settings¶

Double click to open files instead of single clicks: Workspace behavior => General behavior => click behavior.
Start with an empty session in Desktop session.

Making system more responsive¶

Fine-tuning the kernel

Replace the line in /etc/default/grub

Gaming:

/etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash preempt=full"

Virtualization: