====== Install ======

===== from archlinux iso =====

install on archiso zfs system from https://github.com/eoli3n/archiso-zfs
<code> 
curl -s https://raw.githubusercontent.com/eoli3n/archiso-zfs/master/init | bash
</code>

===== ext4 =====


create partition
<code>
DISK=ata-SSDPR-CX400-256-G2_GY3042305
sgdisk --clear -g $DISK

sgdisk     -n3:1M:+512M -t3:EF00 $DISK # boot partition or efi partition
parted $DISK set 3 bios_grub on 
sgdisk     -n1:0:0 -t1:8300 $DISK
</code>

format
<code>
mkfs.ext4 -L ROOT $DISK-part1
</code>

mount
<code>
mount $DISK-part1 /mnt
</code>

install arch
<code>
pacstrap /mnt base linux-lts linux-firmware
genfstab -U /mnt >> /mnt/etc/fstab
</code>

follow https://wiki.archlinux.org/title/installation_guide

==== ZFS ====

Reset disk and create GPT partition schema
<code>
DISK=/dev/disk/by-id/ata-HFS512G39MND-3510A_FJ64N5235113A4S13
sgdisk --clear -g $DISK
</code>

Prepare partitions
<code>
# Run this if you need legacy (BIOS) booting:
# sgdisk -a1 -n2:34:2047  -t2:EF02 $DISK

# Run this for legacy (BIOS) boot or UEFI booting or raidz pool:
sgdisk     -n3:1M:+512M -t3:EF00 $DISK
parted $DISK set 3 bios_grub on # needed for embedding grub in this partition 

# and after run these:
sgdisk     -n9:-8M:0    -t9:BF07 $DISK
sgdisk     -n1:0:0      -t1:BF01 $DISK
</code>

Create pool or ...
<code bash>
zpool create -o ashift=12 \
      -O atime=off -O canmount=off -O normalization=formD \
      -O mountpoint=/ -R /mnt -f \
      rpool ${DISK}-part1
</code>

... import existing pool
<code bash>
zpool export rpool
zpool import -R /mnt rpool
... umount everything inside /mnt and remove subfolders
zfs mount rpool/ROOT/arch
</code>

or create raidz pool
<code bash>
zpool create -O atime=off -O mountpoint=/ -R /mnt -O canmount=off -O compression=lz4 -O normalization=formD -o ashift=12 \
  rpool raidz /dev/disk/by-id/ata-ST4000NM0035-1V4107_ZC10????-part1
</code>

create dataset
<code>
zfs create -o canmount=off -o mountpoint=none rpool/ROOT
zfs create -o canmount=noauto -o mountpoint=/ rpool/ROOT/arch
zfs mount rpool/ROOT/arch
zfs create -o setuid=off rpool/home

zpool set bootfs=rpool/ROOT/arch rpool
</code>

install base system
<code>
pacstrap /mnt base
echo "rpool/ROOT/arch     	/         	zfs       	rw,noatime,xattr,noacl	0 0" > /mnt/etc/fstab
</code>

zfs cache
<code>
[ -f /etc/zfs/zpool.cache ] || zpool set cachefile=/etc/zfs/zpool.cache rpool
mkdir -p /mnt/etc/zfs
cp /etc/zfs/zpool.cache /mnt/etc/zfs/zpool.cache
</code>

<code>
arch-chroot /mnt
</code>



===== Install system =====

<code>
pacman -Syyu
pacman -S base vim
</code>

add archzfs repo
<code>
cat >> etc/pacman.conf <<EOF
[archzfs]
Server = http://archzfs.com/\$repo/x86_64
EOF

pacman-key --init
pacman-key -r F75D9D76
pacman-key --lsign-key F75D9D76
pacman -Syyu
pacman --noconfirm -S linux-lts linux-lts-headers linux-firmware  intel-ucode
pacman --noconfirm -S zfs-dkms 
systemctl enable zfs.target
systemctl enable zfs-import-cache
systemctl enable zfs-mount
systemctl enable zfs-import.target
</code>

basic configuration
<code>
ln -sf /usr/share/zoneinfo/Europe/Rome /etc/localtime
hwclock --systohc
cat > /etc/locale.gen <<EOF
en_US.UTF-8 UTF-8  
it_IT.UTF-8 UTF-8
EOF
locale-gen

echo LANG=it_IT.UTF-8 > /etc/locale.conf

echo nero > /etc/hostname

echo "KEYMAP=it\nFONT=Lat2-Terminus16" > /etc/vconsole.conf
</code>

edit /etc/mkinitcpio.conf to change HOOKS order
<code>
HOOKS=(base udev autodetect modconf block keyboard zfs filesystems)
</code>

regenerate initram
<code>
mkinitcpio -p linux-lts
</code>

bios grub
<code>
pacman -S grub os-prober
ZPOOL_VDEV_NAME_PATH=1 grub-install --target=i386-pc /dev/sda
ZPOOL_VDEV_NAME_PATH=1 grub-mkconfig -o /boot/grub/grub.cfg
</code>

uefi grub
<code>
# exit from chroot
mount /dev/sda3 /arch/efi # /dev/sda3 is EFI partition
chroot /arch bash
mount -t efivarfs efivarfs /sys/firmware/efi/efivars
pacman --noconfirm -S  grub efibootmgr
ZPOOL_VDEV_NAME_PATH=1 grub-install --target=x86_64-efi --efi-directory=/efi --bootloader-id=arch
</code>

edit /etc/default/grub
<code>
GRUB_CMDLINE_LINUX_DEFAULT="noresume zfs_force=1 libahci.ignore_sss=1 vga=current"
</code>

generate grub config
<code>
export ZPOOL_VDEV_NAME_PATH=1
grub-mkconfig -o /boot/grub/grub.cfg
</code>

root password
<code>
passwd
</code>
==== User ====

<code>
pacman -S sudo
useradd -m scipio
usermod -a -G wheel scipio
passwd scipio
</code>

decomment wheel in /etc/sudoers

==== Basic ====

<code>
systemctl start systemd-timesyncd.service 
systemctl enable systemd-timesyncd.service
</code>
==== Gnome  ====

<code>
pacman -S gnome gpaste network-manager-applet
systemctl enable NetworkManager.service
systemctl enable gdm
</code>

nvidia
<code>
pacman -S nvidia-dmks
</code>

others
<code>
pacman -S fish rsync openssh
pacman -S libreoffice-fresh-it
</code>


<code>
exit
mount | grep -v zfs | tac | awk '/\/mnt/ {print $3}' | xargs -i{} umount -lf {}
zpool export rpool
reboot
</code>