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深入解析:Arch Linux安装及其配置要点

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1. Arch Linux简介 Arch Linux是一种轻量级的Linux发行版,以简洁、灵活和高效著称。它基于rolling-release模式,这意味着用户在安装后不需要进行大的版本升级,而是持续接收最新的软件更新。Arch Linux致力于提供一种高度可定制、最小化预装的系统环境,适合有一定Linux使用经验的用户。 2. 安装前的准备 在安装Arch Linux之前,建议用户具备以下经验: - 对Linux操作系统有基本的了解和使用经验。 - 优先推荐有Ubuntu或Manjaro Linux发行版使用背景的用户。 - 掌握基本的Linux命令行操作,特别是终端的使用,因为Arch Linux安装过程中命令行使用是必要的。 3. 安装工具推荐 - VirtualBox: 一个流行的开源虚拟化软件,可以在现有的操作系统中创建虚拟机。推荐用户在虚拟机环境中安装Arch Linux,以便于学习和练习,而不影响实际的硬件配置。 4. 安装流程概述 Arch Linux的安装流程主要分为以下几个步骤: - 创建安装介质:将Arch Linux的安装映像文件写入USB驱动器或其他可引导设备。 - 系统引导:从安装介质启动,进入Arch Linux的安装环境。 - 磁盘分区:根据需要对硬盘进行分区,设置文件系统类型,如ext4、btrfs等。 - 网络配置:配置网络设置,确保安装过程中可以连接到互联网。 - 安装基本系统:使用pacman包管理器安装Arch Linux的基础软件包。 - 引导加载器配置:安装并配置引导加载器,如GRUB,以便能够从硬盘启动Arch Linux。 - 系统配置:安装额外的软件包,配置系统服务,如网络服务、桌面环境或窗口管理器等。 - 用户账户设置:创建用户账户,设置密码,以及确定是否启用sudo。 - 后续设置:安装额外的软件,进行个性化配置,更新系统。 5. 安装中的注意事项 - Arch Linux的安装过程中可能会遇到程序中断的情况,用户需要具备一定的问题解决能力,能够使用终端查询错误信息,并找到相应的解决方案。 - 安装过程中的每一步都应该谨慎执行,错误的配置可能导致系统无法正常启动。 - 安装完成后,还需要进行额外的配置工作,以确保系统按照用户的需要正常工作。 6. 参考资料 在进行安装时,用户应随时参考Arch Linux官方网站的最新新闻部分以及其wiki页面,这些资源会提供最新的安装指南、教程和已知问题的解决方案。 7. 结语 Arch Linux虽然对新手不太友好,但一旦安装成功并进行适当配置,它将会是一个非常强大和高效的系统。通过实践安装,用户不仅能够学习Linux系统的安装,还能深入了解Linux的内部工作原理,从而提升自己的技术水平。

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#!/bin/sh # This script installs Ollama on Linux. # It detects the current operating system architecture and installs the appropriate version of Ollama. set -eu red="$( (/usr/bin/tput bold || :; /usr/bin/tput setaf 1 || :) 2>&-)" plain="$( (/usr/bin/tput sgr0 || :) 2>&-)" status() { echo ">>> $*" >&2; } error() { echo "${red}ERROR:${plain} $*"; exit 1; } warning() { echo "${red}WARNING:${plain} $*"; } TEMP_DIR=$(mktemp -d) cleanup() { rm -rf $TEMP_DIR; } trap cleanup EXIT available() { command -v $1 >/dev/null; } require() { local MISSING='' for TOOL in $*; do if ! available $TOOL; then MISSING="$MISSING $TOOL" fi done echo $MISSING } [ "$(uname -s)" = "Linux" ] || error 'This script is intended to run on Linux only.' ARCH=$(uname -m) case "$ARCH" in x86_64) ARCH="amd64" ;; aarch64|arm64) ARCH="arm64" ;; *) error "Unsupported architecture: $ARCH" ;; esac IS_WSL2=false KERN=$(uname -r) case "$KERN" in *icrosoft*WSL2 | *icrosoft*wsl2) IS_WSL2=true;; *icrosoft) error "Microsoft WSL1 is not currently supported. Please use WSL2 with 'wsl --set-version <distro> 2'" ;; *) ;; esac VER_PARAM="${OLLAMA_VERSION:+?version=$OLLAMA_VERSION}" SUDO= if [ "$(id -u)" -ne 0 ]; then # Running as root, no need for sudo if ! available sudo; then error "This script requires superuser permissions. Please re-run as root." fi SUDO="sudo" fi NEEDS=$(require curl awk grep sed tee xargs) if [ -n "$NEEDS" ]; then status "ERROR: The following tools are required but missing:" for NEED in $NEEDS; do echo " - $NEED" done exit 1 fi for BINDIR in /usr/local/bin /usr/bin /bin; do echo $PATH | grep -q $BINDIR && break || continue done OLLAMA_INSTALL_DIR=$(dirname ${BINDIR}) if [ -d "$OLLAMA_INSTALL_DIR/lib/ollama" ] ; then status "Cleaning up old version at $OLLAMA_INSTALL_DIR/lib/ollama" $SUDO rm -rf "$OLLAMA_INSTALL_DIR/lib/ollama" fi status "Installing ollama to $OLLAMA_INSTALL_DIR" $SUDO install -o0 -g0 -m755 -d $BINDIR $SUDO install -o0 -g0 -m755 -d "$OLLAMA_INSTALL_DIR/lib/ollama" status "Downloading Linux ${ARCH} bundle" curl --fail --show-error --location --progress-bar \ "https://ollama.com/download/ollama-linux-${ARCH}.tgz${VER_PARAM}" | \ $SUDO tar -xzf - -C "$OLLAMA_INSTALL_DIR" if [ "$OLLAMA_INSTALL_DIR/bin/ollama" != "$BINDIR/ollama" ] ; then status "Making ollama accessible in the PATH in $BINDIR" $SUDO ln -sf "$OLLAMA_INSTALL_DIR/ollama" "$BINDIR/ollama" fi # Check for NVIDIA JetPack systems with additional downloads if [ -f /etc/nv_tegra_release ] ; then if grep R36 /etc/nv_tegra_release > /dev/null ; then status "Downloading JetPack 6 components" curl --fail --show-error --location --progress-bar \ "https://ollama.com/download/ollama-linux-${ARCH}-jetpack6.tgz${VER_PARAM}" | \ $SUDO tar -xzf - -C "$OLLAMA_INSTALL_DIR" elif grep R35 /etc/nv_tegra_release > /dev/null ; then status "Downloading JetPack 5 components" curl --fail --show-error --location --progress-bar \ "https://ollama.com/download/ollama-linux-${ARCH}-jetpack5.tgz${VER_PARAM}" | \ $SUDO tar -xzf - -C "$OLLAMA_INSTALL_DIR" else warning "Unsupported JetPack version detected. GPU may not be supported" fi fi install_success() { status 'The Ollama API is now available at 127.0.0.1:11434.' status 'Install complete. Run "ollama" from the command line.' } trap install_success EXIT # Everything from this point onwards is optional. configure_systemd() { if ! id ollama >/dev/null 2>&1; then status "Creating ollama user..." $SUDO useradd -r -s /bin/false -U -m -d /usr/share/ollama ollama fi if getent group render >/dev/null 2>&1; then status "Adding ollama user to render group..." $SUDO usermod -a -G render ollama fi if getent group video >/dev/null 2>&1; then status "Adding ollama user to video group..." $SUDO usermod -a -G video ollama fi status "Adding current user to ollama group..." $SUDO usermod -a -G ollama $(whoami) status "Creating ollama systemd service..." cat <<EOF | $SUDO tee /etc/systemd/system/ollama.service >/dev/null [Unit] Description=Ollama Service After=network-online.target [Service] ExecStart=$BINDIR/ollama serve User=ollama Group=ollama Restart=always RestartSec=3 Environment="PATH=$PATH" [Install] WantedBy=default.target EOF SYSTEMCTL_RUNNING="$(systemctl is-system-running || true)" case $SYSTEMCTL_RUNNING in running|degraded) status "Enabling and starting ollama service..." $SUDO systemctl daemon-reload $SUDO systemctl enable ollama start_service() { $SUDO systemctl restart ollama; } trap start_service EXIT ;; *) warning "systemd is not running" if [ "$IS_WSL2" = true ]; then warning "see https://learn.microsoft.com/en-us/windows/wsl/systemd#how-to-enable-systemd to enable it" fi ;; esac } if available systemctl; then configure_systemd fi # WSL2 only supports GPUs via nvidia passthrough # so check for nvidia-smi to determine if GPU is available if [ "$IS_WSL2" = true ]; then if available nvidia-smi && [ -n "$(nvidia-smi | grep -o "CUDA Version: [0-9]*\.[0-9]*")" ]; then status "Nvidia GPU detected." fi install_success exit 0 fi # Don't attempt to install drivers on Jetson systems if [ -f /etc/nv_tegra_release ] ; then status "NVIDIA JetPack ready." install_success exit 0 fi # Install GPU dependencies on Linux if ! available lspci && ! available lshw; then warning "Unable to detect NVIDIA/AMD GPU. 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Ollama will run in CPU-only mode." exit 0 fi if check_gpu lspci amdgpu || check_gpu lshw amdgpu; then status "Downloading Linux ROCm ${ARCH} bundle" curl --fail --show-error --location --progress-bar \ "https://ollama.com/download/ollama-linux-${ARCH}-rocm.tgz${VER_PARAM}" | \ $SUDO tar -xzf - -C "$OLLAMA_INSTALL_DIR" install_success status "AMD GPU ready." exit 0 fi CUDA_REPO_ERR_MSG="NVIDIA GPU detected, but your OS and Architecture are not supported by NVIDIA. Please install the CUDA driver manually https://docs.nvidia.com/cuda/cuda-installation-guide-linux/" # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#rhel-7-centos-7 # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#rhel-8-rocky-8 # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#rhel-9-rocky-9 # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#fedora install_cuda_driver_yum() { status 'Installing NVIDIA repository...' case $PACKAGE_MANAGER in yum) $SUDO $PACKAGE_MANAGER -y install yum-utils if curl -I --silent --fail --location "https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-$1$2.repo" >/dev/null ; then $SUDO $PACKAGE_MANAGER-config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-$1$2.repo else error $CUDA_REPO_ERR_MSG fi ;; dnf) if curl -I --silent --fail --location "https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-$1$2.repo" >/dev/null ; then $SUDO $PACKAGE_MANAGER config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-$1$2.repo else error $CUDA_REPO_ERR_MSG fi ;; esac case $1 in rhel) status 'Installing EPEL repository...' # EPEL is required for third-party dependencies such as dkms and libvdpau $SUDO $PACKAGE_MANAGER -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-$2.noarch.rpm || true ;; esac status 'Installing CUDA driver...' if [ "$1" = 'centos' ] || [ "$1$2" = 'rhel7' ]; then $SUDO $PACKAGE_MANAGER -y install nvidia-driver-latest-dkms fi $SUDO $PACKAGE_MANAGER -y install cuda-drivers } # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#ubuntu # ref: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#debian install_cuda_driver_apt() { status 'Installing NVIDIA repository...' if curl -I --silent --fail --location "https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-keyring_1.1-1_all.deb" >/dev/null ; then curl -fsSL -o $TEMP_DIR/cuda-keyring.deb https://developer.download.nvidia.com/compute/cuda/repos/$1$2/$(uname -m | sed -e 's/aarch64/sbsa/')/cuda-keyring_1.1-1_all.deb else error $CUDA_REPO_ERR_MSG fi case $1 in debian) status 'Enabling contrib sources...' $SUDO sed 's/main/contrib/' < /etc/apt/sources.list | $SUDO tee /etc/apt/sources.list.d/contrib.list > /dev/null if [ -f "/etc/apt/sources.list.d/debian.sources" ]; then $SUDO sed 's/main/contrib/' < /etc/apt/sources.list.d/debian.sources | $SUDO tee /etc/apt/sources.list.d/contrib.sources > /dev/null fi ;; esac status 'Installing CUDA driver...' $SUDO dpkg -i $TEMP_DIR/cuda-keyring.deb $SUDO apt-get update [ -n "$SUDO" ] && SUDO_E="$SUDO -E" || SUDO_E= DEBIAN_FRONTEND=noninteractive $SUDO_E apt-get -y install cuda-drivers -q } if [ ! -f "/etc/os-release" ]; then error "Unknown distribution. Skipping CUDA installation." fi . /etc/os-release OS_NAME=$ID OS_VERSION=$VERSION_ID PACKAGE_MANAGER= for PACKAGE_MANAGER in dnf yum apt-get; do if available $PACKAGE_MANAGER; then break fi done if [ -z "$PACKAGE_MANAGER" ]; then error "Unknown package manager. Skipping CUDA installation." fi if ! check_gpu nvidia-smi || [ -z "$(nvidia-smi | grep -o "CUDA Version: [0-9]*\.[0-9]*")" ]; then case $OS_NAME in centos|rhel) install_cuda_driver_yum 'rhel' $(echo $OS_VERSION | cut -d '.' -f 1) ;; rocky) install_cuda_driver_yum 'rhel' $(echo $OS_VERSION | cut -c1) ;; fedora) [ $OS_VERSION -lt '39' ] && install_cuda_driver_yum $OS_NAME $OS_VERSION || install_cuda_driver_yum $OS_NAME '39';; amzn) install_cuda_driver_yum 'fedora' '37' ;; debian) install_cuda_driver_apt $OS_NAME $OS_VERSION ;; ubuntu) install_cuda_driver_apt $OS_NAME $(echo $OS_VERSION | sed 's/\.//') ;; *) exit ;; esac fi if ! lsmod | grep -q nvidia || ! lsmod | grep -q nvidia_uvm; then KERNEL_RELEASE="$(uname -r)" case $OS_NAME in rocky) $SUDO $PACKAGE_MANAGER -y install kernel-devel kernel-headers ;; centos|rhel|amzn) $SUDO $PACKAGE_MANAGER -y install kernel-devel-$KERNEL_RELEASE kernel-headers-$KERNEL_RELEASE ;; fedora) $SUDO $PACKAGE_MANAGER -y install kernel-devel-$KERNEL_RELEASE ;; debian|ubuntu) $SUDO apt-get -y install linux-headers-$KERNEL_RELEASE ;; *) exit ;; esac NVIDIA_CUDA_VERSION=$($SUDO dkms status | awk -F: '/added/ { print $1 }') if [ -n "$NVIDIA_CUDA_VERSION" ]; then $SUDO dkms install $NVIDIA_CUDA_VERSION fi if lsmod | grep -q nouveau; then status 'Reboot to complete NVIDIA CUDA driver install.' exit 0 fi $SUDO modprobe nvidia $SUDO modprobe nvidia_uvm fi # make sure the NVIDIA modules are loaded on boot with nvidia-persistenced if available nvidia-persistenced; then $SUDO touch /etc/modules-load.d/nvidia.conf MODULES="nvidia nvidia-uvm" for MODULE in $MODULES; do if ! grep -qxF "$MODULE" /etc/modules-load.d/nvidia.conf; then echo "$MODULE" | $SUDO tee -a /etc/modules-load.d/nvidia.conf > /dev/null fi done fi status "NVIDIA GPU ready." install_success

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ubuntu@ubuntu:~/opencv-4.10.0/build$ cmake -D CMAKE_BUILD_TYPE=Release \ -D CMAKE_INSTALL_PREFIX=/usr/local \ -D OPENCV_EXTRA_MODULES_PATH=/path/to/opencv_contrib/modules \ -D WITH_CUDA=ON \ .. -- The CXX compiler identification is GNU 11.4.0 -- The C compiler identification is GNU 11.4.0 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/cc - skipped -- Detecting C compile features -- Detecting C compile features - done -- ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default. -- Detected processor: aarch64 -- Found PythonInterp: /usr/bin/python3 (found suitable version "3.10.12", minimum required is "3.2") -- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython3.10.so (found suitable exact version "3.10.12") -- Looking for ccache - not found -- Performing Test HAVE_CXX_FSIGNED_CHAR -- Performing Test HAVE_CXX_FSIGNED_CHAR - Success -- Performing Test HAVE_C_FSIGNED_CHAR -- Performing Test HAVE_C_FSIGNED_CHAR - Success -- Performing Test HAVE_CXX_W -- Performing Test HAVE_CXX_W - Success -- Performing Test HAVE_C_W -- Performing Test HAVE_C_W - Success -- Performing Test HAVE_CXX_WALL -- Performing Test HAVE_CXX_WALL - Success -- Performing Test HAVE_C_WALL -- Performing Test HAVE_C_WALL - Success -- Performing Test HAVE_CXX_WRETURN_TYPE -- Performing Test HAVE_CXX_WRETURN_TYPE - Success -- Performing Test HAVE_C_WRETURN_TYPE -- Performing Test HAVE_C_WRETURN_TYPE - Success -- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR -- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR - Success -- Performing Test HAVE_C_WNON_VIRTUAL_DTOR -- Performing Test HAVE_C_WNON_VIRTUAL_DTOR - Failed -- Performing Test

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