btrfs sub list /

snapper list
snapper dif 3..4
snapper undochange 3..4
snapper rollback

df -Th

------ ARCH CORE INSTALLATION ------

cfdisk /dev/sda
    - create 512MB partition, type EFI system
    - rest for the root
    - swap if you fee like it
mkfs.vfat -F 32 -n EFI /dev/sda1
mkfs.btrfs -L "ROOT" /dev/sda2

mount /dev/sda2 /mnt
btrfs subvolume create /mnt/@
btrfs subvolume create /mnt/@home
btrfs subvolume create /mnt/@snapshots
umount /mnt

mount -o noatime,ssd,space_cache=v2,compress=zstd,subvol=@ /dev/sda2 /mnt
mkdir -p /mnt/boot
mkdir -p /mnt/home
mount -o noatime,ssd,space_cache=v2,compress=zstd,subvol=@home /dev/sda2 /mnt/home
mount /dev/sda1 /mnt/boot

pacstrap /mnt base base-devel efibootmgr btrfs-progs grub

genfstab -U /mnt >> /mnt/etc/fstab

arch-chroot /mnt

grub-install --efi-directory=/boot --bootloader-id=GRUB
grub-mkconfig -o /boot/grub/grub.cfg

cp /etc/mkinitcpio.conf /etc/mkinitcpio.conf.orig
ORIG= "base udev autodetect modconf block filesystems keyboard fsck"
HOOKS="base systemd autodetect modconf block filesystems btrfs keyboard fsck"
mkinitcpio -p linux

exit
reboot now


------ ARCH BASE SETTINGS ------


- login as root
passwd
echo whatever > /etc/hostname
useradd -m -G wheel ja
passwd ja
EDITOR=nano visudo
    - uncomment %wheel ALL=(ALL) ALL
ip a
systemctl enable --now [email protected]
nano /etc/locale.gen
    - uncomment en_US.UTF-8
locale-gen
localectl set-locale LANG=en_US.UTF-8
timedatectl set-timezone 'Europe/Prague'
hwclock --systohc --utc
timedatectl set-ntp true


------ RECOMENDATIONS ------


systemctl enable --now fstrim.timer

nano /etc/makepkg.conf
    - MAKEFLAGS="-j$(nproc)"
    - PKGEXT='.pkg.tar'

nano /etc/pacman.conf
    - uncomment #Color

git clone https://aur.archlinux.org/yay-bin.git
cd yay
makepkg -si

yay zim-zsh

pacman -S reflector
reflector -l 200 -n 20 -c SK -p http --sort rate --save /etc/pacman.d/mirrorlist

sudo pacman -Rns $(pacman -Qtdq)

pacman -S pacman-contrib
systemctl enable --now paccache.timer

------ TIMESHIFT ------


yay timeshift

systemctl enable --now cronie

cp /etc/default/timeshift.json /etc/timeshift.json
nano /etc/timeshift.json
lsblk -o UUID /dev/sda2 >> /etc/timeshift.json
{
  "backup_device_uuid" : "fe176199-b741-47f3-ac1a-47a436309d5a",
  "parent_device_uuid" : "",
  "do_first_run" : "false",
  "btrfs_mode" : "true",
  "include_btrfs_home" : "false",
  "stop_cron_emails" : "true",
  "schedule_monthly" : "false",
  "schedule_weekly" : "false",
  "schedule_daily" : "false",
  "schedule_hourly" : "false",
  "schedule_boot" : "false",
  "count_monthly" : "2",
  "count_weekly" : "3",
  "count_daily" : "5",
  "count_hourly" : "6",
  "count_boot" : "20",
  "snapshot_size" : "0",
  "snapshot_count" : "0",
  "exclude" : [
  ],
  "exclude-apps" : [
  ]
}

sudo timeshift --list
sudo timeshift --create --comment "first after reinstall" --tags O







---------

pacman -S snapper
snapper -c root create-config /
btrfs sub del /.snapshots
mkdir /.snapshots
nano /etc/fstab - mount @snapshots in to /.snapshots
mount /.snapshots

pacman -S grub-btrfs
nano /etc/grub.d/41_snapshots-btrfs - check defaults
nano /etc/default/grub
        GRUB_BTRFS_CREATE_ONLY_HARMONIZED_ENTRIES="true"
        GRUB_BTRFS_LIMIT="10"
nano /etc/snapper/configs/root
    NUMBER_MIN_AGE="0"
    NUMBER_LIMIT="10"
    NUMBER_LIMIT_IMPORTANT="3"
    TIMELINE_CREATE="no"

systemctl status cronie.service

pacman -S snap-pac
yay snap-pac-grub

-- recovery --

snapper rollback


------