System Configuration¶

Set mkinitcpio zfs hook scan path:

echo GRUB_CMDLINE_LINUX=\"zfs_import_dir=${INST_PRIMARY_DISK%/*}\" >> /mnt/etc/default/grub

Generate list of datasets for zfs-mount-generator to mount them at boot:

# tab-separated zfs properties
# see /etc/zfs/zed.d/history_event-zfs-list-cacher.sh
export \
PROPS="name,mountpoint,canmount,atime,relatime,devices,exec\
,readonly,setuid,nbmand,encroot,keylocation"
mkdir -p /mnt/etc/zfs/zfs-list.cache
zfs list -H -t filesystem -o $PROPS -r rpool_$INST_UUID > /mnt/etc/zfs/zfs-list.cache/rpool_$INST_UUID
sed -Ei "s|/mnt/?|/|" /mnt/etc/zfs/zfs-list.cache/*

Generate fstab:

echo bpool_$INST_UUID/$INST_ID/BOOT/default /boot zfs rw,xattr,posixacl 0 0 >> /mnt/etc/fstab
for i in ${DISK[@]}; do
   echo UUID=$(blkid -s UUID -o value ${i}-part1) /boot/efis/${i##*/}-part1 vfat \
   x-systemd.idle-timeout=1min,x-systemd.automount,noauto,umask=0022,fmask=0022,dmask=0022 0 1 >> /mnt/etc/fstab
done
echo UUID=$(blkid -s UUID -o value ${INST_PRIMARY_DISK}-part1) /boot/efi vfat \
x-systemd.idle-timeout=1min,x-systemd.automount,noauto,umask=0022,fmask=0022,dmask=0022 0 1 >> /mnt/etc/fstab
if [ "${INST_PARTSIZE_SWAP}" != "" ]; then
 for i in ${DISK[@]}; do
  echo ${i##*/}-part4-swap ${i}-part4 /dev/urandom swap,cipher=aes-cbc-essiv:sha256,size=256,discard >> /mnt/etc/crypttab
  echo /dev/mapper/${i##*/}-part4-swap none swap defaults 0 0 >> /mnt/etc/fstab
 done
fi

By default, systemd will halt boot process if any entry in /etc/fstab fails to mount. This is unnecessary for mirrored EFI boot partitions. With the above mount options, systemd will skip mounting them at boot, only mount them on demand when accessed.

Configure mkinitcpio:

mv /mnt/etc/mkinitcpio.conf /mnt/etc/mkinitcpio.conf.original
tee /mnt/etc/mkinitcpio.conf <<EOF
HOOKS=(base udev autodetect modconf block keyboard zfs filesystems)
EOF

Host name:
```
echo $INST_HOST > /mnt/etc/hostname
```
Enable DHCP on all ethernet ports:
```
tee /mnt/etc/systemd/network/20-default.network <<EOF

[Match]
Name=en*
Name=eth*

[Network]
DHCP=yes
EOF
systemctl enable systemd-networkd systemd-resolved --root=/mnt
```
Customize this file if the system is not using wired DHCP network. See Network Configuration.

Alternatively, install a network manager such as NetworkManager.

Timezone:

ln -sf $INST_TZ /mnt/etc/localtime
hwclock --systohc
systemctl enable systemd-timesyncd --root=/mnt

Locale:

echo "en_US.UTF-8 UTF-8" >> /mnt/etc/locale.gen
echo "LANG=en_US.UTF-8" >> /mnt/etc/locale.conf

Other locales should be added after reboot.

Ignore kernel updates:

sed -i 's/#IgnorePkg/IgnorePkg/' /mnt/etc/pacman.conf
sed -i "/^IgnorePkg/ s/$/ ${INST_LINVAR} ${INST_LINVAR}-headers zfs-${INST_LINVAR} zfs-utils/" /mnt/etc/pacman.conf

Kernel will be updated manually. See here.

Enable ZFS services:

systemctl enable zfs-import-scan.service zfs-import.target zfs-mount zfs-zed zfs.target --root=/mnt

Chroot:

echo "INST_PRIMARY_DISK=$INST_PRIMARY_DISK
INST_LINVAR=$INST_LINVAR
INST_UUID=$INST_UUID
INST_ID=$INST_ID
INST_VDEV=$INST_VDEV" > /mnt/root/chroot
echo DISK=\($(for i in ${DISK[@]}; do printf "$i "; done)\) >> /mnt/root/chroot
arch-chroot /mnt bash --login

Source variables:
```
source /root/chroot
```
Apply locales:
```
locale-gen
```
Add archzfs repo.
Set root password:
```
passwd
```