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Installing Fish shell on MacOS (Intel and M1) using brew

Fish is a smart and user-friendly command line (like bash or zsh). This is how you can instal Fish on MacOS and make your default shell.

Note that you need the https://brew.sh/ package manager installed on your machine.

Install Fish

brew install fish

The rt kernel I tested at this moment is 5.15.21-rt30 (Feb 2022).

Install real-time linux kernel

Follow a community contributed tutorial to install the latest stable RT_PREEMPT version https://docs.ros.org/en/foxy/Tutorials/Building-Realtime-rt_preempt-kernel-for-ROS-2.html

Open Software & Updates. in the Ubuntu Software menu tick the ‘Source code’ box.

New tested approach: Build Nvidia driver for rt kernel with installed driver on non rt OS. (tested on July 19, 2024 on zorin17 (equivalent to Ubuntu23.10))

Important

One thing before start the below process is to make sure your non-rt kernel and installed rt-kernel has same or close major version, in my most recent test case, it is 6.5.0 for generic vs 6.6.40 for rt.

Step. 0: First, install the rt kernel but dont boot into the rt version OS right now. Install the Nvidia driver first in your non rt OS. When you installed your OS this has probably been done, but check if you got the nvidia-kernel-source, if not,

Ubuntu on Asus ROG Zephyrus G14 2021 (Setup guide)

Here is a way to do a robust install of Ubuntu (+ optional Windows 11 dual boot and LUKS encryption) on an Asus laptop, with minimal usable hardware support, without a significant amount of tinkering that may break in future or require frequent technical attention.

Specs:

AMD R9 5900HS 8 core 16 thread (onboard Radeon graphics)
NVIDIA RTX 3060
40GB RAM (8GB soldered + 32GB stick)
2TB SSD
14inch 1920x1080 Display @144Hz

Install xanmod kernel

Upgrade the kernel by installing xanmod kernel is very convenient. Read more here: https://xanmod.org/

echo 'deb http://deb.xanmod.org releases main' | sudo tee /etc/apt/sources.list.d/xanmod-kernel.list
wget -qO - https://dl.xanmod.org/gpg.key | sudo apt-key --keyring /etc/apt/trusted.gpg.d/xanmod-kernel.gpg add -
sudo apt update && sudo apt install linux-xanmod

Reboot after installation.


	mkdir -p ~/miniconda3
	wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda3/miniconda.sh
	bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3
	rm -rf ~/miniconda3/miniconda.sh

	# after this, init fish shell
	~/miniconda3/bin/conda init fish

	# install deps
	sudo pacman -Sy --noconfirm base-devel
	yay -Sy --noconfirm ros2-arch-deps
	yay -Sy --noconfirm ros2-pyqt5-sip-compat
	yay -Sy --noconfirm sip4

	# modify /usr/share/sip/PyQt5/QtCore/QtCoremod.sip
	sed -n '23 s/Module.*/Module PyQt5.QtCore/p' /usr/share/sip/PyQt5/QtCore/QtCoremod.sip

	# install ros2 from AUR

	echo 'deb http://deb.xanmod.org releases main' \| sudo tee /etc/apt/sources.list.d/xanmod-kernel.list
	wget -qO - https://dl.xanmod.org/gpg.key \| sudo apt-key --keyring /etc/apt/trusted.gpg.d/xanmod-kernel.gpg add -
	sudo apt update
	sudo apt install linux-xanmod-rt-x64v3

	sudo addgroup realtime
	sudo usermod -a -G realtime $(whoami)

	#### add the following limits to the realtime group in /etc/security/limits.conf
	# @realtime soft rtprio 99

	# essentials
	sudo apt-get update
	sudo apt-get install -y build-essential git ssh openssl libssl-dev openvpn net-tools nmap fping curl gcc g++
	sudo apt-get upgrade -y

	# Install Anaconda
	cd Downloads
	wget https://repo.anaconda.com/archive/Anaconda3-2021.11-Linux-x86_64.sh
	sudo chmod +x Anaconda3-2021.11-Linux-x86_64.sh
	bash Anaconda3-2021.11-Linux-x86_64.sh

	curl -L -O https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-$(uname)-$(uname -m).sh
	bash Mambaforge-$(uname)-$(uname -m).sh