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partitioning.sh
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partitioning.sh
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#!/usr/bin/env bash
# Formats DRIVE into boot /dev/sdX1, LUKS encrypts /dev/sdX2
# sets up btrfs with subvolumes on /dev/sdX2
set -e
DRIVE=$1
SWAPSIZE=$2
echo "HDD $DRIVE"
echo "Formating"
if (mount | grep /mnt); then
umount -l /mnt
fi
sgdisk --zap-all "$DRIVE"
echo -e "n\n\n\n512M\nef00\nn\n\n\n\n\nw\ny" | gdisk "$DRIVE" &> /dev/null
BOOT="${DRIVE}1"
ROOT="${DRIVE}2"
echo "Formating Boot as fat32"
wipefs -a "$BOOT"
mkfs.vfat -F32 "$BOOT"
echo "Encrypting ROOT"
cryptsetup luksFormat "$ROOT"
cryptsetup open "$ROOT" archlinux
ROOT="/dev/mapper/archlinux"
echo "Formating Root as btrfs"
wipefs -a "$ROOT"
mkfs.btrfs -L archlinux "$ROOT"
echo "Create Subvols"
mount -t btrfs -o compress=lzo "$ROOT" /mnt
btrfs subvolume create /mnt/@
btrfs subvolume create /mnt/@home
btrfs subvolume create /mnt/@snapshots
btrfs subvolume create /mnt/@homeshots
btrfs subvolume create /mnt/@swap
umount /mnt
echo "Mounting @"
mount -o subvol=@,ssd,compress=lzo,discard "$ROOT" /mnt
mkdir /mnt/{home,swap,.snapshots,boot}
echo "Mounting Subvols"
mount -o subvol=@home,ssd,compress=lzo,discard "$ROOT" /mnt/home
mount -o subvol=@swap,ssd,compress=lzo,discard "$ROOT" /mnt/swap
mount -o subvol=@snapshots,ssd,compress=lzo,discard "$ROOT" /mnt/.snapshots
mkdir /mnt/home/.snapshots
mount -o subvol=@homeshots,ssd,compress=lzo,discard "$ROOT" /mnt/home/.snapshots
echo "Create SWAP"
btrfs filesystem mkswapfile --size "$SWAPSIZE" /mnt/swap/swapfile
swapon /mnt/swap/swapfile
echo "Mount boot"
mount "$BOOT" /mnt/boot
echo "DONE!"