archiso-zfs/init

#!/bin/bash
# This script load zfs kernel module for any archiso.
# github.com/eoli3n
# Thanks to CalimeroTeknik on #archlinux-fr

set -e

print () {
    echo -e "\n\033[1m> $1\033[0m\n"
}

print "Test if archiso is running"

grep archiso /proc/cmdline

print "Set mirrorlist to current archiso date"

iso_date=$(date +%Y/%m/%d -d "$(LANG=C pacman -Qi linux |sed -n 's/^Install Date\s*: //p')")
echo "Server=https://archive.archlinux.org/repos/$iso_date/\$repo/os/\$arch" > /etc/pacman.d/mirrorlist

print "Add archzfs repo"

cat >> /etc/pacman.conf <<"EOF"
[archzfs]
Server = http://archzfs.com/archzfs/x86_64
Server = http://mirror.sum7.eu/archlinux/archzfs/archzfs/x86_64
Server = https://mirror.biocrafting.net/archlinux/archzfs/archzfs/x86_64
EOF

print "Sign archzfs"

pacman-key --recv-keys F75D9D76
pacman-key --lsign-key F75D9D76

print "Update lists and upgrade"

pacman -Syyu --noconfirm

print "Increase cowspace to half of RAM"

ram=$(free -b | grep 'Mem' | awk '{print $2}')
ram_half=$(echo "$ram / 2" | bc)
ram_half_h=$(numfmt --to=si $ram_half)
mount -o remount,size=$ram_half_h /run/archiso/cowspace

print "Install current kernel headers"

pacman -S --noconfirm linux-headers

print "Install zfs-dkms"

pacman -S --noconfirm zfs-dkms

print "Load zfs kernel module"

modprobe zfs