dotfiles/bootstrapArchLinux.org

Arch Linux Installation

• Preparation
• Prepare the disk
  • Partition the disk
  • Encrypt the root partition
  • Mount the /boot partition
• Install the base-system
• Configure the new system
• More configuration

Preparation

• Download Arch Linux ISO image
• Write it to an usb drive with

  $ dd if=[ARCH-LINUX.iso] of=[/path/to/usbdrive]

• Boot the computer from this stick

Prepare the disk

We will partition the disk drive for UEFI boot. The root disk will be encrypted, /boot will reside inside the unencrypted EFI service partition. The diskdevice is /dev/sda.

Partition the disk

• Write some zeros to the disk to make sure there is no bootsector left.

  $ dd if=/dev/zero of=/dev/sda

• Abort after a few seconds.
• Create partitions and format them

  $ gdisk /dev/sda
    | o [ENTER] to create a new empty GUID partition table (GPT)
    | y [ENTER] to confirm
    |
    | n [ENTER] add a new partition
    | [ENTER] to select default partition number of 1
    | [ENTER] to select default start at first sector
    | +512M [ENTER] make that size partition for booting
    | ef00 [ENTER] EFI partition type
    |
    | n [ENTER] add a new partition
    | [ENTER] to select default partition number of 2
    | [ENTER] to select default start at first sector
    | +60G [ENTER] allocate whatever size wanted for linux
    |
    | w [ENTER] Write changes
    | y [ENTER] confirm

Encrypt the root partition

• Create and open the root partition

  $ cryptsetup luksFormat -v -s 512 -h sha512 /dev/sda2
  $ cryptsetup open /dev/sda2 cryptroot

• Format with ext4

  $ mkfs.ext4 /dev/mapper/cryptroot

• Mount the encrypted volume

  $ mount /dev/mapper/cryptroot /mnt

Mount the /boot partition

  $ mkfs.fat -F32 /dev/sda1
  $ mkdir /mnt/boot
  $ mount /dev/sda1 /mnt/boot

Install the base-system

• Connect to wifi

  $ wifi-menu

• Select a nearby (possibly faster) mirror by editing /etc/pacman.d/mirrorlist
• Install the base-system

  $ pacstrap /mnt base base-devel dialog openssl-1.0 git intel-ucode \
    wpa_supplicant puppet linux linux-firmware vi netctl

• Generate fstab for the new system

  $ genfstab -pU /mnt >> /mnt/etc/fstab

Configure the new system

• Chroot into the new system

  $ arch-chroot /mnt /bin/bash

• Set the hostname

  $ echo MYHOSTNAME > /etc/hostname

• Edit /etc/vconsole.conf to set keyboard and font

  $ vi /etc/vconsole.conf
    FONT=latarcyrheb-sun32
    KEYMAP=de

The FONT setting is optional. latarcyrheb-sun32 is useful for small hidpi devices like GPD Pocket.

• Add encryption components to initramfs

  $ vi /etc/mkinitcpio.conf
    ...
    HOOKS=(base udev autodetect keyboard keymap consolefont modconf block encrypt
           filesystems fsck)
    ...
  $ mkinitcpio -P

• Install bootloader

  $ bootctl install

• Configure the bootloader

  $ vi /boot/loader/loader.conf
    default arch
    auto-firmware no
    timeout 0
    console-mode 2
    editor no

• Configure the bootloader entry

  $ blkid | grep sda2 | cut -d \" -f 2 > /boot/loader/entries/arch.conf
  $ vi /boot/loader/arch.conf
    title Arch Linux
    linux /vmlinuz-linux
    initrd /intel-ucode.img
    initrd /initramfs-linux.img
    options cryptdevice=UUID=[DEVICE-UUID]:cryptroot root=/dev/mapper/cryptroot rw
   fbcon=rotate:1

DEVICE-UUID is the string we added with the first command. fbcon=rotate:1 rotates the display. This is ONLY NEEDED on device like GPD Pocket.

More configuration

• Perform basic systemconfiguration

  $ git clone https://github.com/elfrinjo/dotfiles
  $ cd dotfiles
  $ ./Setup.sh
  $ cd sysconfig_arch
  $ puppet apply --modulepath ./modules cfg_base.pp

• Setup.sh can take options to replace some configfiles. Options are:

Option	Description
gpdp2	Some differences for the GPD Pocket II

• Change the root password

  $ passwd

• Create useraccount

  $ useradd -m -G sudo [USERNAME]
  $ passwd [USERNAME]

• Exit the chroot

  $ exit

• Shutdown the system

  $ shutdown -h now

• Remove usb-drive
• Start the computer
• Enter drive encryption password
• Logon as the newly created user
• Connect to wifi

  $ sudo wifi-menu

• Perform more system configuration

  $ git clone https://github.com/elfrinjo/dotfiles
  $ cd dotfiles
  $ ./Setup.sh
  $ cd sysconfig_arch
  $ sudo puppet apply --modulepath ./modules cfg_[WANTED-CONFIGS].pp

• If there are special configfiles for Setup.sh, repeat with appropriate options. (See above)
• configs with cfg_zz need to be applied last as they overwrite previous settings
• At some point the Desktop will start. When this happens, just log on and continue inside a terminal
• Update the system

  $ pacman -Syu

• Reboot

  $ reboot