System Configuration

Generate fstab:

mkdir -p /mnt/etc/
genfstab -t PARTUUID /mnt | grep -v swap > /mnt/etc/fstab
sed -i "s|vfat.*rw|vfat rw,x-systemd.idle-timeout=1min,x-systemd.automount,noauto,nofail|" /mnt/etc/fstab

Install basic system packages:

dnf --installroot=/mnt \
--releasever=$VERSION_ID -y install \
@core  grub2-efi-x64 \
grub2-pc-modules grub2-efi-x64-modules \
shim-x64  efibootmgr \
kernel-$(uname -r)

dnf --installroot=/mnt \
--releasever=$VERSION_ID -y install \
https://zfsonlinux.org/epel/zfs-release-2-2$(rpm --eval "%{dist}").noarch.rpm
dnf config-manager --installroot=/mnt --disable zfs
dnf config-manager --installroot=/mnt --enable zfs-kmod
dnf --installroot=/mnt --releasever=$VERSION_ID \
-y install zfs zfs-dracut

Configure dracut:

echo 'add_dracutmodules+=" zfs "' >> /mnt/etc/dracut.conf.d/zfs.conf
echo 'forced_drivers+=" zfs "' >> /mnt/etc/dracut.conf.d/zfs.conf
if grep mpt3sas /proc/modules; then
  echo 'forced_drivers+=" mpt3sas "'  >> /mnt/etc/dracut.conf.d/zfs.conf
fi
if grep virtio_blk /proc/modules; then
  echo 'filesystems+=" virtio_blk "' >> /mnt/etc/dracut.conf.d/fs.conf
fi

Generate host id:
```
zgenhostid -f -o /mnt/etc/hostid
```

Install locale package, example for English locale:

dnf --installroot=/mnt install -y glibc-minimal-langpack glibc-langpack-en

By default SSH server is enabled, allowing root login by password, disable SSH server:
```
systemctl disable sshd --root=/mnt
systemctl enable firewalld --root=/mnt
```

Chroot:

history -w /mnt/home/sys-install-pre-chroot.txt
arch-chroot /mnt /usr/bin/env DISK="$DISK" bash --login

For SELinux, relabel filesystem on reboot:
```
fixfiles -F onboot
```

Generate initrd:

for directory in /lib/modules/*; do
  kernel_version=$(basename $directory)
  dracut --force --kver $kernel_version
done

Set locale, keymap, timezone, hostname and root password:

rm -f /etc/localtime
systemd-firstboot --prompt --root-password=PASSWORD --force

Set root password, the password set earlier does not work due to SELinux:
```
passwd
```