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gentoo-autoinstall.sh

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+#!/bin/bash
+set -e
+
+# --------------------------------------------
+# Partitioning
+# --------------------------------------------
+DISK="/dev/nvme0n1"
+echo "Wiping ${DISK}..."
+sgdisk --zap-all ${DISK}
+
+echo "Creating partitions..."
+sgdisk -n 1:0:+4G -t 1:ef00 ${DISK}    # EFI
+sgdisk -n 2:0:+32G -t 2:8200 ${DISK}   # Swap
+sgdisk -n 3:0:+128G -t 3:8300 ${DISK}  # Root
+sgdisk -n 4:0:0 -t 4:8300 ${DISK}      # Home
+
+# --------------------------------------------
+# Filesystems
+# --------------------------------------------
+echo "Formatting partitions..."
+mkfs.fat -F32 ${DISK}p1
+mkswap ${DISK}p2
+mkfs.xfs -f ${DISK}p3
+mkfs.xfs -f ${DISK}p4
+
+# --------------------------------------------
+# Mounting
+# --------------------------------------------
+echo "Mounting filesystems..."
+mount ${DISK}p3 /mnt/gentoo
+mkdir -p /mnt/gentoo/{boot/efi,home}
+mount ${DISK}p1 /mnt/gentoo/boot/efi
+mount ${DISK}p4 /mnt/gentoo/home
+swapon ${DISK}p2
+
+# --------------------------------------------
+# Stage3 Installation
+# --------------------------------------------
+cd /mnt/gentoo
+echo "Downloading stage3..."
+STAGE3_URL="https://distfiles.gentoo.org/releases/amd64/autobuilds/20250119T170328Z/stage3-amd64-desktop-systemd-20250119T170328Z.tar.xz"
+wget ${STAGE3_URL}
+tar xpf stage3-*.tar.xz --xattrs-include='*.*' --numeric-owner
+
+# --------------------------------------------
+# make.conf Configuration
+# --------------------------------------------
+cat <<EOF > /mnt/gentoo/etc/portage/make.conf
+COMMON_FLAGS="-march=tigerlake -O2 -pipe"
+FEATURES="getbinpkg"
+EMERGE_DEFAULT_OPTS="--getbinpkg --with-bdeps=y"
+GENTOO_MIRRORS="https://distfiles.gentoo.org https://gentoo.osuosl.org/"
+BINHOST="https://gentoo.osuosl.org/experimental/amd64/binpkg/default/linux/17.1/x86-64/"
+
+USE="X wayland elogind systemd alsa bluetooth networkmanager wifi nvidia xfs"
+ACCEPT_LICENSE="*"
+VIDEO_CARDS="intel nvidia"
+INPUT_DEVICES="libinput"
+
+L10N="en en-US"
+LINGUAS="en en_US"
+
+MAKEOPTS="-j8"
+EOF
+
+# --------------------------------------------
+# Portage Configuration
+# --------------------------------------------
+mkdir -p /mnt/gentoo/etc/portage/repos.conf
+cp /mnt/gentoo/usr/share/portage/config/repos.conf /mnt/gentoo/etc/portage/repos.conf/gentoo.conf
+
+# --------------------------------------------
+# Chroot Preparation
+# --------------------------------------------
+cp --dereference /etc/resolv.conf /mnt/gentoo/etc/
+mount --types proc /proc /mnt/gentoo/proc
+mount --rbind /sys /mnt/gentoo/sys
+mount --make-rslave /mnt/gentoo/sys
+mount --rbind /dev /mnt/gentoo/dev
+mount --make-rslave /mnt/gentoo/dev
+
+# --------------------------------------------
+# Chroot Script
+# --------------------------------------------
+cat <<EOF > /mnt/gentoo/chroot.sh
+#!/bin/bash
+set -e
+
+# Initial setup
+source /etc/profile
+export PS1="(chroot) \$PS1"
+
+# Portage sync
+emerge-webrsync
+eselect profile set default/linux/amd64/17.1/desktop/systemd
+
+# Timezone
+ln -sf /usr/share/zoneinfo/UTC /etc/localtime
+
+# Locale
+echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
+locale-gen
+eselect locale set en_US.utf8
+
+# Update @world
+emerge -quN @world
+
+# Kernel (binary)
+emerge -q sys-kernel/gentoo-kernel-bin sys-kernel/linux-firmware
+
+# Initramfs
+emerge -q sys-kernel/dracut
+dracut --kver \$(ls /usr/src/linux | head -n1) --force --add "xfs nvidia systemd" /boot/initramfs-genkernel-amd64-\$(ls /usr/src/linux | head -n1)
+
+# System configuration
+echo "gentoo-legion5" > /etc/hostname
+
+# Network
+systemctl enable systemd-networkd.service
+systemctl enable systemd-resolved.service
+systemctl enable NetworkManager.service
+
+# Bluetooth
+systemctl enable bluetooth.service
+
+# Sound
+systemctl --global enable pipewire.socket
+systemctl --global enable pipewire-pulse.socket
+
+# SSD Trim
+systemctl enable fstrim.timer
+
+# User setup
+useradd -m -G wheel,audio,video,portage,plugdev,usb users
+passwd users
+echo "%wheel ALL=(ALL:ALL) ALL" >> /etc/sudoers
+
+# NVIDIA Drivers
+emerge -q x11-drivers/nvidia-drivers
+emerge -q media-libs/libglvnd
+
+# Optimus Manager
+emerge -q sys-power/optimus-manager
+systemctl enable optimus-manager.service
+
+# Intel microcode
+emerge -q sys-firmware/intel-microcode
+
+# KDE Plasma
+emerge -q kde-plasma/plasma-meta
+emerge -q kde-apps/kde-apps-meta
+emerge -q app-admin/sudo sys-apps/udev sys-apps/usbutils
+
+# Display Manager
+emerge -q x11-misc/sddm
+systemctl enable sddm.service
+
+# Bootloader
+emerge -q sys-boot/grub
+grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Gentoo
+grub-mkconfig -o /boot/grub/grub.cfg
+
+# Update environment
+env-update
+source /etc/profile
+
+# Cleanup
+rm -rf /var/tmp/portage/*
+EOF
+
+# --------------------------------------------
+# Execute Chroot
+# --------------------------------------------
+chmod +x /mnt/gentoo/chroot.sh
+chroot /mnt/gentoo /chroot.sh
+
+# --------------------------------------------
+# Cleanup
+# --------------------------------------------
+umount -l /mnt/gentoo/dev{/shm,/pts,}
+umount -R /mnt/gentoo
+swapoff ${DISK}p2
+
+echo "Installation complete! Reboot and remove installation media."