From af256190a9f67dc93e5703a46288204b14e5d92d Mon Sep 17 00:00:00 2001
From: jbenicek <jan00@benicek.xyz>
Date: Wed, 2 Jul 2025 17:31:50 +0200
Subject: [PATCH] created

---
 install.sh | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 install.sh

diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..4edb39f
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,149 @@
+#!/bin/bash
+set -euo pipefail
+
+### === Uživatelské proměnné === ###
+DISK1="/dev/sdX"                # např. /dev/sda nebo /dev/nvme0n1
+DISK2="/dev/sdY"                # např. /dev/sdb nebo /dev/nvme1n1
+HOSTNAME="zfs-server"
+ZFS_POOL="rpool"
+ZFS_BOOTFS="ubuntu-noble"
+ZBM_VERSION="2.4.0"
+MOUNTPOINT="/mnt"
+UBUNTU_SUITE="noble"
+TIMEZONE="Europe/Prague"
+LOCALE="cs_CZ.UTF-8"
+KEYMAP="cz"
+DEBIAN_MIRROR="http://cz.archive.ubuntu.com/ubuntu"
+### ============================ ###
+
+ZFS_OPTS_POOL="-o ashift=12 -o autotrim=on"
+ZFS_OPTS_DATASETS="-O acltype=posixacl -O xattr=sa -O compression=zstd -O relatime=on -O normalization=formD -O dnodesize=auto -O atime=off -O mountpoint=none -O canmount=off"
+
+echo "== Čištění disků =="
+for DISK in "$DISK1" "$DISK2"; do
+  sgdisk --zap-all "$DISK"
+  dd if=/dev/zero of="$DISK" bs=512 count=2048
+  wipefs -a "$DISK"
+done
+
+echo "== Vytváření GPT tabulky a oddílů =="
+for DISK in "$DISK1" "$DISK2"; do
+  sgdisk -n1:1M:+1G   -t1:EF00 -c1:"EFI System Partition" "$DISK"
+  sgdisk -n2:0:0      -t2:BF00 -c2:"ZFS root" "$DISK"
+done
+
+PART1_DISK1=$(ls ${DISK1}* | grep -E "${DISK1}p?1$")
+PART1_DISK2=$(ls ${DISK2}* | grep -E "${DISK2}p?1$")
+PART2_DISK1=$(ls ${DISK1}* | grep -E "${DISK1}p?2$")
+PART2_DISK2=$(ls ${DISK2}* | grep -E "${DISK2}p?2$")
+
+echo "== Formátování EFI oddílů =="
+mkfs.vfat -F32 -n EFI "$PART1_DISK1"
+mkfs.vfat -F32 -n EFI "$PART1_DISK2"
+
+echo "== Vytváření ZFS poolu ($ZFS_POOL) =="
+zpool create -f $ZFS_OPTS_POOL $ZFS_OPTS_DATASETS \
+  -R "$MOUNTPOINT" \
+  "$ZFS_POOL" mirror "$PART2_DISK1" "$PART2_DISK2"
+
+zfs create "$ZFS_POOL/ROOT"
+zfs create -o mountpoint=/ "$ZFS_POOL/ROOT/$ZFS_BOOTFS"
+zfs create -o mountpoint=/home "$ZFS_POOL/home"
+zfs create -o mountpoint=/var "$ZFS_POOL/var"
+zfs create -o mountpoint=/var/log "$ZFS_POOL/var/log"
+zfs create -o mountpoint=/var/tmp "$ZFS_POOL/var/tmp"
+zfs create -o mountpoint=/var/cache "$ZFS_POOL/var/cache"
+zfs create -o mountpoint=/var/lib "$ZFS_POOL/var/lib"
+zfs create -o mountpoint=/srv "$ZFS_POOL/srv"
+zfs create -o mountpoint=/tmp "$ZFS_POOL/tmp"
+
+zfs set canmount=noauto "$ZFS_POOL/ROOT/$ZFS_BOOTFS"
+zfs mount "$ZFS_POOL/ROOT/$ZFS_BOOTFS"
+
+mkdir -p "$MOUNTPOINT"/{boot/efi,home,var/log,var/tmp,var/cache,var/lib,srv,tmp}
+
+echo "== Montování EFI oddílů =="
+mount "$PART1_DISK1" "$MOUNTPOINT/boot/efi"
+
+echo "== Bootstrap Ubuntu base systému =="
+debootstrap --components=main,universe --arch=amd64 "$UBUNTU_SUITE" "$MOUNTPOINT" "$DEBIAN_MIRROR"
+
+echo "== Příprava chroot prostředí =="
+mount --rbind /dev "$MOUNTPOINT/dev"
+mount --rbind /proc "$MOUNTPOINT/proc"
+mount --rbind /sys "$MOUNTPOINT/sys"
+cp /etc/resolv.conf "$MOUNTPOINT/etc/"
+
+cat <<EOF > "$MOUNTPOINT/root/post-chroot.sh"
+#!/bin/bash
+set -e
+
+export HOSTNAME="$HOSTNAME"
+export ZFS_POOL="$ZFS_POOL"
+export ZFS_BOOTFS="$ZFS_BOOTFS"
+export TIMEZONE="$TIMEZONE"
+export LOCALE="$LOCALE"
+export KEYMAP="$KEYMAP"
+export ZBM_VERSION="$ZBM_VERSION"
+
+echo "\$HOSTNAME" > /etc/hostname
+ln -sf /usr/share/zoneinfo/\$TIMEZONE /etc/localtime
+
+apt update
+apt install -y locales keyboard-configuration console-setup
+
+sed -i "s/# \$LOCALE UTF-8/\$LOCALE UTF-8/" /etc/locale.gen
+locale-gen
+update-locale LANG=\$LOCALE
+echo "KEYMAP=\$KEYMAP" > /etc/vconsole.conf
+
+apt install -y linux-image-generic zfs-initramfs zfsutils-linux zfs-zed \
+               dosfstools grub-efi-amd64 shim-signed efibootmgr curl
+
+zfs set canmount=noauto \$ZFS_POOL/ROOT/\$ZFS_BOOTFS
+zfs mount \$ZFS_POOL/ROOT/\$ZFS_BOOTFS
+zfs set mountpoint=/ \$ZFS_POOL/ROOT/\$ZFS_BOOTFS
+zpool set bootfs=\$ZFS_POOL/ROOT/\$ZFS_BOOTFS \$ZFS_POOL
+
+useradd -m -s /bin/bash ubuntu
+echo "ubuntu:ubuntu" | chpasswd
+adduser ubuntu sudo
+echo "⚠️ Výchozí heslo pro uživatele 'ubuntu' je 'ubuntu'. Změň ho po restartu."
+
+echo "== Instalace GRUB na oba disky =="
+grub-install --target=x86_64-efi --efi-directory=/boot/efi \
+             --removable --recheck --bootloader-id=ubuntu
+update-grub
+
+echo "== Instalace ZFSBootMenu (volitelný fallback) =="
+mkdir -p /boot/efi/EFI/ZBM
+curl -L https://github.com/zbm-dev/zfsbootmenu/releases/download/v\$ZBM_VERSION/zfsbootmenu-efi-\$ZBM_VERSION-x86_64.EFI -o /boot/efi/EFI/ZBM/ZBM.EFI
+
+cat <<GRUBENTRY >> /etc/grub.d/40_custom
+
+menuentry "ZFSBootMenu" {
+  insmod part_gpt
+  insmod fat
+  insmod chain
+  search --no-floppy --label EFI --set=root
+  chainloader /EFI/ZBM/ZBM.EFI
+}
+GRUBENTRY
+
+update-grub
+
+echo "== Hotovo. Nyní spusť: exit && umount a export poolu"
+EOF
+
+chmod +x "$MOUNTPOINT/root/post-chroot.sh"
+
+echo
+echo "=========================="
+echo "✅ Chroot a konfigurace:"
+echo "sudo chroot $MOUNTPOINT /bin/bash"
+echo "/root/post-chroot.sh"
+echo
+echo "Poté ukonči chroot a spusť:"
+echo "umount -l $MOUNTPOINT/dev $MOUNTPOINT/proc $MOUNTPOINT/sys $MOUNTPOINT/boot/efi"
+echo "zpool export $ZFS_POOL"
+echo "=========================="
\ No newline at end of file