bartprokop/arch-install.sh

## arch-install.sh
#!/bin/bash

# *** Valid for archlinux-2022.04.05-x86_64.iso

# *** GPG verify ISO file
gpg --auto-key-locate clear,wkd -v --locate-external-key pierre@archlinux.de

gpg --verify archlinux-2022.04.05-x86_64.iso.sig
# gpg: assuming signed data in 'archlinux-2022.04.05-x86_64.iso'
# gpg: Signature made Tue Apr  5 17:05:57 2022 GMTST
# gpg:                using RSA key 4AA4767BBC9C4B1D18AE28B77F2D434B9741E8AC
# gpg:                issuer "pierre@archlinux.de"
# gpg: Good signature from "Pierre Schmitz <pierre@archlinux.de>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4AA4 767B BC9C 4B1D 18AE  28B7 7F2D 434B 9741 E8AC

# *** Boot downloaded image

# *** Update system clock
timedatectl set-ntp true
timedatectl status
#                Local time: Tue 2022-04-26 20:19:26 UTC
#            Universal time: Tue 2022-04-26 20:19:26 UTC
#                  RTC time: Tue 2022-04-26 20:19:26
#                 Time zone: UTC (UTC, +0000)
# System clock synchronized: yes
#               NTP service: active
#           RTC in local TZ: no

# *** This isn't necessary but it is easier to ssh into the server as root@IP address
passwd
ip a

# *** Create 1GiB EFI System Partition and use remaining space for Linux filesystem
fdisk -l
# Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors
# Disk model: ST500DM002-1BD14
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 4096 bytes
# I/O size (minimum/optimal): 4096 bytes / 4096 bytes
# Disklabel type: gpt
# Disk identifier: 35A04661-D563-426A-9810-CA2058558EED
#
# Device       Start       End   Sectors   Size Type
# /dev/sda1     2048   2099199   2097152     1G EFI System
# /dev/sda2  2099200 976773119 974673920 464.8G Linux filesystem

# *** If you are reinstalling, then wipe Linux filesystem
wipefs /dev/sda2
# DEVICE OFFSET  TYPE  UUID                                 LABEL
# sda2   0x10040 btrfs 22d79b17-c99f-4d7f-8c4b-7a6b0c85c831 T20sda2

wipefs -a /dev/sda2
# /dev/sda2: 8 bytes were erased at offset 0x00010040 (btrfs): 5f 42 48 52 66 53 5f 4d

blkid
# /dev/sda1: LABEL_FATBOOT="EFI" LABEL="EFI" UUID="C043-FAA5" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="41e0082e-4360-6740-a650-4ac9e13d9105"
# /dev/sda2: PARTUUID="65265a7a-961d-1547-af8a-48e1ec0c159b"

# *** Create BTRFS on Linux filesystem partition
mkfs.btrfs -L t20sda2 /dev/sda2
# btrfs-progs v5.16.2
# See http://btrfs.wiki.kernel.org for more information.
#
# NOTE: several default settings have changed in version 5.15, please make sure
#       this does not affect your deployments:
#       - DUP for metadata (-m dup)
#       - enabled no-holes (-O no-holes)
#       - enabled free-space-tree (-R free-space-tree)
#
# Label:              t20sda2
# UUID:               3212aa4a-d29a-4433-9368-0cdaee3f1ff9
# Node size:          16384
# Sector size:        4096
# Filesystem size:    464.76GiB
# Block group profiles:
#   Data:             single            8.00MiB
#   Metadata:         DUP               1.00GiB
#   System:           DUP               8.00MiB
# SSD detected:       no
# Zoned device:       no
# Incompat features:  extref, skinny-metadata, no-holes
# Runtime features:   free-space-tree
# Checksum:           crc32c
# Number of devices:  1
# Devices:
#    ID        SIZE  PATH
#     1   464.76GiB  /dev/sda2

# *** Temporally mount BTRFS filesystem in order to create subvolumes for root and home
mount /dev/sda2 /mnt
cd /mnt
ls -l
# total 0

mkdir svols # directory for SubVOLumeS
mkdir snaps # directory for SNAPshotS

btrfs subvolume create svols/root
# Create subvolume 'svols/root'

btrfs subvolume create svols/home
# Create subvolume 'svols/home'

btrfs subvolume list /mnt
# ID 256 gen 8 top level 5 path svols/root
# ID 257 gen 9 top level 5 path svols/home

umount /mnt

# *** Mount everything
cd
mount -o noatime,nodiratime,compress=zstd,subvol=svols/root /dev/sda2 /mnt

mkdir /mnt/efi
mount /dev/sda1 /mnt/efi

mkdir /mnt/home
mount -o noatime,nodiratime,compress=zstd,subvol=svols/home /dev/sda2 /mnt/home

df -h
# Filesystem      Size  Used Avail Use% Mounted on
# dev             1.9G     0  1.9G   0% /dev
# run             1.9G  9.2M  1.9G   1% /run
# /dev/sdb1       746M  746M     0 100% /run/archiso/bootmnt
# cowspace        256M  832K  256M   1% /run/archiso/cowspace
# /dev/loop0      667M  667M     0 100% /run/archiso/airootfs
# airootfs        256M  832K  256M   1% /
# tmpfs           1.9G     0  1.9G   0% /dev/shm
# tmpfs           1.9G     0  1.9G   0% /tmp
# tmpfs           1.9G  2.3M  1.9G   1% /etc/pacman.d/gnupg
# tmpfs           384M     0  384M   0% /run/user/0
# /dev/sda2       465G  3.9M  463G   1% /mnt
# /dev/sda1      1022M   91M  932M   9% /mnt/efi
# /dev/sda2       465G  3.9M  463G   1% /mnt/home

# *** Install essential packages + BTRFS userspace utilities + nano
pacstrap /mnt base linux linux-firmware btrfs-progs nano

# *** Generate an fstab file
genfstab -L /mnt >> /mnt/etc/fstab
cat /mnt/etc/fstab
# # <file system> <dir> <type> <options> <dump> <pass>
# # /dev/sda2 UUID=381dc812-9bde-4a4e-8af1-cd6546ffec6e
# LABEL=t20sda2           /               btrfs           rw,noatime,nodiratime,compress=zstd:3,space_cache=v2,subvolid=256,subvol=/svols/root    0 0
# # /dev/sda1 UUID=C043-FAA5
# LABEL=EFI               /efi            vfat            rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro   0 2
# # /dev/sda2 UUID=381dc812-9bde-4a4e-8af1-cd6546ffec6e
# LABEL=t20sda2           /home           btrfs           rw,noatime,nodiratime,compress=zstd:3,space_cache=v2,subvolid=257,subvol=/svols/home    0 0

# *** Change root into the new system
arch-chroot /mnt

# *** Usual Arch config:
ln -sf /usr/share/zoneinfo/GB /etc/localtime

hwclock --systohc

nano /etc/locale.gen

locale-gen
# Generating locales...
#   en_GB.UTF-8... done
#   en_US.UTF-8... done
# Generation complete.

nano /etc/locale.conf
# LANG=en_GB.UTF-8

echo t20 > /etc/hostname

passwd
# New password:
# Retype new password:
# passwd: password updated successfully

nano /etc/hosts
# 127.0.0.1        localhost
# ::1              localhost
# 192.168.17.5     t20

networkctl list
# IDX LINK TYPE     OPERATIONAL SETUP
#   1 lo   loopback carrier     unmanaged
#   2 eno1 ether    routable    configured
#
# 2 links listed.

nano /etc/systemd/network/20-wired.network
# [Match]
# Name=eno1
#
# [Network]
# Address=192.168.17.5/24
# Gateway=192.168.17.1
# DNS=192.168.17.1

systemctl enable systemd-networkd.service

mv /etc/resolv.conf /etc/resolv.conf-origin
ln -rsf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
systemctl enable systemd-resolved.service

# *** Bootloader and uCode
pacman -S refind
pacman -S intel-ucode

ls -l /boot
# total 56776
# -rw------- 1 root root 34125283 Apr 26 21:39 initramfs-linux-fallback.img
# -rw------- 1 root root  8841680 Apr 26 21:39 initramfs-linux.img
# -rw-r--r-- 1 root root  4706304 Apr 20 21:56 intel-ucode.img
# -rw-r--r-- 1 root root 10458688 Apr 26 21:39 vmlinuz-linux

refind-install
# ShimSource is none
# Installing rEFInd on Linux....
# ESP was found at /efi using vfat
# Running in BIOS mode with no existing default boot loader; installing to
# /efi/EFI/BOOT
# Note: IA32 (x86) binary not installed!
# Installing driver for btrfs (btrfs_x64.efi)
# Copied rEFInd binary files
#
# Copying sample configuration file as refind.conf; edit this file to configure
# rEFInd.
#
#
# Installation has completed successfully.

nano /efi/EFI/BOOT/refind.conf
# also_scan_dirs +,svols/root/boot
# extra_kernel_version_strings linux-hardened,linux-zen,linux-lts,linux

mkrlconf
# "Boot with standard options" "root=PARTUUID=65265a7a-961d-1547-af8a-48e1ec0c159b rw rootflags=subvol=svols/root initrd=svols/root\boot\intel-ucode.img initrd=svols/root\boot\initramfs-%v.img"
# "Boot Origin"                "root=PARTUUID=65265a7a-961d-1547-af8a-48e1ec0c159b rw rootflags=subvol=svols/root initrd=svols/root\boot\initramfs-%v.img"

# *** Finish
exit
umount -R /mnt
reboot

# *** Arch Linux successfully installed
	#!/bin/bash

	# *** Valid for archlinux-2022.04.05-x86_64.iso

	# *** GPG verify ISO file
	gpg --auto-key-locate clear,wkd -v --locate-external-key pierre@archlinux.de

	gpg --verify archlinux-2022.04.05-x86_64.iso.sig
	# gpg: assuming signed data in 'archlinux-2022.04.05-x86_64.iso'
	# gpg: Signature made Tue Apr 5 17:05:57 2022 GMTST
	# gpg: using RSA key 4AA4767BBC9C4B1D18AE28B77F2D434B9741E8AC
	# gpg: issuer "pierre@archlinux.de"
	# gpg: Good signature from "Pierre Schmitz <pierre@archlinux.de>" [unknown]
	# gpg: WARNING: This key is not certified with a trusted signature!
	# gpg: There is no indication that the signature belongs to the owner.
	# Primary key fingerprint: 4AA4 767B BC9C 4B1D 18AE 28B7 7F2D 434B 9741 E8AC

	# *** Boot downloaded image

	# *** Update system clock
	timedatectl set-ntp true
	timedatectl status
	# Local time: Tue 2022-04-26 20:19:26 UTC
	# Universal time: Tue 2022-04-26 20:19:26 UTC
	# RTC time: Tue 2022-04-26 20:19:26
	# Time zone: UTC (UTC, +0000)
	# System clock synchronized: yes
	# NTP service: active
	# RTC in local TZ: no

	# *** This isn't necessary but it is easier to ssh into the server as root@IP address
	passwd
	ip a

	# *** Create 1GiB EFI System Partition and use remaining space for Linux filesystem
	fdisk -l
	# Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors
	# Disk model: ST500DM002-1BD14
	# Units: sectors of 1 * 512 = 512 bytes
	# Sector size (logical/physical): 512 bytes / 4096 bytes
	# I/O size (minimum/optimal): 4096 bytes / 4096 bytes
	# Disklabel type: gpt
	# Disk identifier: 35A04661-D563-426A-9810-CA2058558EED
	#
	# Device Start End Sectors Size Type
	# /dev/sda1 2048 2099199 2097152 1G EFI System
	# /dev/sda2 2099200 976773119 974673920 464.8G Linux filesystem

	# *** If you are reinstalling, then wipe Linux filesystem
	wipefs /dev/sda2
	# DEVICE OFFSET TYPE UUID LABEL
	# sda2 0x10040 btrfs 22d79b17-c99f-4d7f-8c4b-7a6b0c85c831 T20sda2

	wipefs -a /dev/sda2
	# /dev/sda2: 8 bytes were erased at offset 0x00010040 (btrfs): 5f 42 48 52 66 53 5f 4d

	blkid
	# /dev/sda1: LABEL_FATBOOT="EFI" LABEL="EFI" UUID="C043-FAA5" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="41e0082e-4360-6740-a650-4ac9e13d9105"
	# /dev/sda2: PARTUUID="65265a7a-961d-1547-af8a-48e1ec0c159b"

	# *** Create BTRFS on Linux filesystem partition
	mkfs.btrfs -L t20sda2 /dev/sda2
	# btrfs-progs v5.16.2
	# See http://btrfs.wiki.kernel.org for more information.
	#
	# NOTE: several default settings have changed in version 5.15, please make sure
	# this does not affect your deployments:
	# - DUP for metadata (-m dup)
	# - enabled no-holes (-O no-holes)
	# - enabled free-space-tree (-R free-space-tree)
	#
	# Label: t20sda2
	# UUID: 3212aa4a-d29a-4433-9368-0cdaee3f1ff9
	# Node size: 16384
	# Sector size: 4096
	# Filesystem size: 464.76GiB
	# Block group profiles:
	# Data: single 8.00MiB
	# Metadata: DUP 1.00GiB
	# System: DUP 8.00MiB
	# SSD detected: no
	# Zoned device: no
	# Incompat features: extref, skinny-metadata, no-holes
	# Runtime features: free-space-tree
	# Checksum: crc32c
	# Number of devices: 1
	# Devices:
	# ID SIZE PATH
	# 1 464.76GiB /dev/sda2

	# *** Temporally mount BTRFS filesystem in order to create subvolumes for root and home
	mount /dev/sda2 /mnt
	cd /mnt
	ls -l
	# total 0

	mkdir svols # directory for SubVOLumeS
	mkdir snaps # directory for SNAPshotS

	btrfs subvolume create svols/root
	# Create subvolume 'svols/root'

	btrfs subvolume create svols/home
	# Create subvolume 'svols/home'

	btrfs subvolume list /mnt
	# ID 256 gen 8 top level 5 path svols/root
	# ID 257 gen 9 top level 5 path svols/home

	umount /mnt

	# *** Mount everything
	cd
	mount -o noatime,nodiratime,compress=zstd,subvol=svols/root /dev/sda2 /mnt

	mkdir /mnt/efi
	mount /dev/sda1 /mnt/efi

	mkdir /mnt/home
	mount -o noatime,nodiratime,compress=zstd,subvol=svols/home /dev/sda2 /mnt/home

	df -h
	# Filesystem Size Used Avail Use% Mounted on
	# dev 1.9G 0 1.9G 0% /dev
	# run 1.9G 9.2M 1.9G 1% /run
	# /dev/sdb1 746M 746M 0 100% /run/archiso/bootmnt
	# cowspace 256M 832K 256M 1% /run/archiso/cowspace
	# /dev/loop0 667M 667M 0 100% /run/archiso/airootfs
	# airootfs 256M 832K 256M 1% /
	# tmpfs 1.9G 0 1.9G 0% /dev/shm
	# tmpfs 1.9G 0 1.9G 0% /tmp
	# tmpfs 1.9G 2.3M 1.9G 1% /etc/pacman.d/gnupg
	# tmpfs 384M 0 384M 0% /run/user/0
	# /dev/sda2 465G 3.9M 463G 1% /mnt
	# /dev/sda1 1022M 91M 932M 9% /mnt/efi
	# /dev/sda2 465G 3.9M 463G 1% /mnt/home

	# *** Install essential packages + BTRFS userspace utilities + nano
	pacstrap /mnt base linux linux-firmware btrfs-progs nano

	# *** Generate an fstab file
	genfstab -L /mnt >> /mnt/etc/fstab
	cat /mnt/etc/fstab
	# # <file system> <dir> <type> <options> <dump> <pass>
	# # /dev/sda2 UUID=381dc812-9bde-4a4e-8af1-cd6546ffec6e
	# LABEL=t20sda2 / btrfs rw,noatime,nodiratime,compress=zstd:3,space_cache=v2,subvolid=256,subvol=/svols/root 0 0
	# # /dev/sda1 UUID=C043-FAA5
	# LABEL=EFI /efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro 0 2
	# # /dev/sda2 UUID=381dc812-9bde-4a4e-8af1-cd6546ffec6e
	# LABEL=t20sda2 /home btrfs rw,noatime,nodiratime,compress=zstd:3,space_cache=v2,subvolid=257,subvol=/svols/home 0 0

	# *** Change root into the new system
	arch-chroot /mnt

	# *** Usual Arch config:
	ln -sf /usr/share/zoneinfo/GB /etc/localtime

	hwclock --systohc

	nano /etc/locale.gen

	locale-gen
	# Generating locales...
	# en_GB.UTF-8... done
	# en_US.UTF-8... done
	# Generation complete.

	nano /etc/locale.conf
	# LANG=en_GB.UTF-8

	echo t20 > /etc/hostname

	passwd
	# New password:
	# Retype new password:
	# passwd: password updated successfully

	nano /etc/hosts
	# 127.0.0.1 localhost
	# ::1 localhost
	# 192.168.17.5 t20

	networkctl list
	# IDX LINK TYPE OPERATIONAL SETUP
	# 1 lo loopback carrier unmanaged
	# 2 eno1 ether routable configured
	#
	# 2 links listed.

	nano /etc/systemd/network/20-wired.network
	# [Match]
	# Name=eno1
	#
	# [Network]
	# Address=192.168.17.5/24
	# Gateway=192.168.17.1
	# DNS=192.168.17.1

	systemctl enable systemd-networkd.service

	mv /etc/resolv.conf /etc/resolv.conf-origin
	ln -rsf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
	systemctl enable systemd-resolved.service

	# *** Bootloader and uCode
	pacman -S refind
	pacman -S intel-ucode

	ls -l /boot
	# total 56776
	# -rw------- 1 root root 34125283 Apr 26 21:39 initramfs-linux-fallback.img
	# -rw------- 1 root root 8841680 Apr 26 21:39 initramfs-linux.img
	# -rw-r--r-- 1 root root 4706304 Apr 20 21:56 intel-ucode.img
	# -rw-r--r-- 1 root root 10458688 Apr 26 21:39 vmlinuz-linux

	refind-install
	# ShimSource is none
	# Installing rEFInd on Linux....
	# ESP was found at /efi using vfat
	# Running in BIOS mode with no existing default boot loader; installing to
	# /efi/EFI/BOOT
	# Note: IA32 (x86) binary not installed!
	# Installing driver for btrfs (btrfs_x64.efi)
	# Copied rEFInd binary files
	#
	# Copying sample configuration file as refind.conf; edit this file to configure
	# rEFInd.
	#
	#
	# Installation has completed successfully.

	nano /efi/EFI/BOOT/refind.conf
	# also_scan_dirs +,svols/root/boot
	# extra_kernel_version_strings linux-hardened,linux-zen,linux-lts,linux

	mkrlconf
	# "Boot with standard options" "root=PARTUUID=65265a7a-961d-1547-af8a-48e1ec0c159b rw rootflags=subvol=svols/root initrd=svols/root\boot\intel-ucode.img initrd=svols/root\boot\initramfs-%v.img"
	# "Boot Origin" "root=PARTUUID=65265a7a-961d-1547-af8a-48e1ec0c159b rw rootflags=subvol=svols/root initrd=svols/root\boot\initramfs-%v.img"

	# *** Finish
	exit
	umount -R /mnt
	reboot

	# *** Arch Linux successfully installed