Arch-Linux-Installer/Installation

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h1 Simple, modern and secure installation of Arch Linux with KDE Plasma.
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# _Load_ the preferred keyboard. In my case it's "de" for Germany._
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$ loadkeys de
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# _List devices to make sure you partition the right device._
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$ lsblk
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# _Partition the device using gdisk (assuming /dev/sda)._
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$ gdisk /dev/sda
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# _Create GPT and EFI-partion._
$ o # _Creates new GPT-partition table._
$ y # _Accept._
$ n # _New partition._
$ +512M # _512 MB should be plenty for /boot._
$ ef00 # _Mark as EFI._
$ n # _New main partition, accept all the following using "y"._
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# _Print and check your partitions._
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$ p
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# _Write partitions to device._
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$ w
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$ y # _Accept._
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# _Encrypt primary partition._
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$ cryptsetup -c aes-xts-plain -y -s 512 luksFormat /dev/sda2
$ YES
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# _Open encrypted partition, map as "root" and create filesystem._
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$ cryptseup luksOpen /dev/sda2 root
$ mkfs.fat -F 32 -n UEFI /dev/sda1
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# _-F specifies the type of file allocation tables used (12, 16 or 32 bit)._
# _-n sets the volume name (label) of the filesystem to "UEFI"._
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# _Create ext4 filesystem on primary partition._
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$ mkfs.ext4 /dev/mapper/root
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# _Create mountpoints and mount partitions._
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$ mount /dev/mapper/root /mnt
$ mkdir /mnt/boot
$ mount /dev/sda1 /mnt/boot
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# _Optionally update mirrorlist using reflector._
# _In this case use the latest 10 mirrors from Germany, that have been synchronized within the last 24 hours and_
# _sort the by download-rate and write them to the pacman mirrorlist._
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$ reflector --verbose --latest 10 --country Germany --age 24 --sort rate --save /etc/pacman.d/mirrorlist
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# _Install base system and basic packages (network, editor, sudo)._
# _The package base-devel is not necessary but recommended._
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$ pacstrap /mnt base base-devel linux linux-firmware networkmanager nano sudo
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# _Generate fstab._
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$ genfstab -Lp /mnt > /mnt/etc/fstab
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# _-L = Use labels for source identifiers (shortcut for -t LABEL)._
# _-p Exclude pseudofs mounts (default behavior)._
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# _Chroot into your installation._
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$ arch-chroot /mnt
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# _Set your hostname._
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$ echo mycomputer > /etc/hostname
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# _Generate locale.gen for your preferred language (and preferribly english)._
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$ nano /etc/locale.gen
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# _Uncomment your language, e.g. de_DE.UTF-8 UTF-8 (and en_US.UTF-8)._
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# _Generate the locale._
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$ locale-gen
# Add necessary HOOKS and MODULES.
$ nano /etc/mkinitcpio.conf
# MODULES=(ext4)
# HOOKS=(base udev autodetect modconf block keyboard keymap encrypt filesystems fsck shutdown)
# Create mkinitcpio.
$ mkinitcpio -p linux
# Start NetworkManager for automatic network access on next boot.
$ systemctl enable NetworkManager
# Set a root-password.
$ passwd
# Install systemd-boot bootloader.
$ bootctl install
# Create the bootloader config.
$ nano /bootloader/entries/arch.conf
# Add the following:
# title Arch Linux
# linux /vmlinuz-linux
# initrd /initramfs-linux.img
# options cryptdevice=/dev/sda2:root root=/dev/mapper/root rw lang=de init=/usr/lib/systemd/systemd locale=de_DE.UTF-8
# Create a fallback config.
$ cp /boot/loader/entries/arch.conf /boot/loader/entries/arch-fallback.conf
# Edit the fallback config.
$ nano /boot/loader/entries/arch-fallback.conf
# Change it to the following:
# title Arch Linux Fallback
# initrd /initramfs-linux-fallback.img
# Edit loader config.
$ nano /boot/loader/loader.conf
Change it to the following:
# timeout 1
# default arch.conf
# Exit and reboot
$ exit
$ umount /mnt/boot
$ reboot
# Enter encryption-password and login as root.
# Set the keyboard to your preferred language permantently.
$ echo KEYMAP=de-latin1-nodeadkeys > /etc/vconsole.conf
# Create a user with a /home-directory.
$ useradd -m myusername
# Set password for your user.
$ passwd myusername
# Add myusername to group wheel for sudo access.
$ gpasswd -a myusername wheel
# Edit sudoers-file for sudo access.
$ nano /etc/sudoers
# Uncomment „%wheel ALL=(ALL) ALL“
# Logout as root.
$ exit
# Login as you user.
# Install SDDM and a minimal KDE Plasma.
$ pacman -S sddm sddm-kcm plasma-desktop
# Install KDE terminal for easier installation of packages in Plasma.
$ pacman -S konsole
# Enable and start SDDM to login to Plasma.
$ systemctl enable sddm
$ systemctl start sddm
# Now you are logged in to your Plasma desktop environment and ready to configure and use your Arch Linux.
# Suggested packages to install.
# microcode (https://wiki.archlinux.org/index.php/Microcode)
# kde-gtk-config (Adds graphical settings for GTK apps.)
# kdeplasma-addons („All kind of addons to improve your Plasma experience.“)
# kscreen (Adds screen section to graphical settings.)
# ksystemlog (Graphical system log viewer)
# partitionmanager (Graphical partition manager)
# plasma-nm (Network manager applet)
# plasma-pa (Audio manager applet)
# powerdevil (Adds energy manager to graphical settings.)
# spectacle (Graphical screenshot tool.)
# systemd-swap (https://wiki.archlinux.org/index.php/swap#systemd-swap)