mirror of
https://github.com/classy-giraffe/easy-arch.git
synced 2025-11-17 19:40:55 +00:00
0f389165bf
There is a bug with BTRFS where it uses the same mount option for the first subvolume for any subvolume you mount. That means the nodatacow flag you set on line 74 and 75 are useless. In order to disable CoW, you must add chattr +C to those. https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs(5)
196 lines
6.4 KiB
Bash
196 lines
6.4 KiB
Bash
#!/usr/bin/env -S bash -e
|
|
|
|
# Cleaning the TTY.
|
|
clear
|
|
|
|
# Selecting the target for the installation.
|
|
PS3="Select the disk where Arch Linux is going to be installed: "
|
|
select ENTRY in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme|vd");
|
|
do
|
|
DISK=$ENTRY
|
|
echo "Installing Arch Linux on $DISK."
|
|
break
|
|
done
|
|
|
|
# Deleting old partition scheme.
|
|
read -r -p "This will delete the current partition table on $DISK. Do you agree [y/N]? " response
|
|
response=${response,,}
|
|
if [[ "$response" =~ ^(yes|y)$ ]]
|
|
then
|
|
wipefs -af $DISK &>/dev/null
|
|
sgdisk -Zo $DISK &>/dev/null
|
|
else
|
|
echo "Quitting."
|
|
exit
|
|
fi
|
|
|
|
# Creating a new partition scheme.
|
|
echo "Creating new partition scheme on $DISK."
|
|
parted -s $DISK \
|
|
mklabel gpt \
|
|
mkpart ESP fat32 1MiB 513MiB \
|
|
mkpart Cryptroot 513MiB 100% \
|
|
|
|
ESP="/dev/disk/by-partlabel/ESP"
|
|
Cryptroot="/dev/disk/by-partlabel/Cryptroot"
|
|
|
|
# Informing the Kernel of the changes.
|
|
echo "Informing the Kernel about the disk changes."
|
|
partprobe $DISK
|
|
|
|
# Formatting the ESP as FAT32.
|
|
echo "Formatting the EFI Partition as FAT32."
|
|
mkfs.fat -F 32 $ESP &>/dev/null
|
|
|
|
# Creating a LUKS Container for the root partition.
|
|
echo "Creating LUKS Container for the root partition."
|
|
cryptsetup --type luks1 luksFormat $Cryptroot
|
|
echo "Opening the newly created LUKS Container."
|
|
cryptsetup open $Cryptroot cryptroot
|
|
BTRFS="/dev/mapper/cryptroot"
|
|
|
|
# Formatting the LUKS Container as BTRFS.
|
|
echo "Formatting the LUKS container as BTRFS."
|
|
mkfs.btrfs $BTRFS &>/dev/null
|
|
mount $BTRFS /mnt
|
|
|
|
# Creating BTRFS subvolumes.
|
|
echo "Creating BTRFS subvolumes."
|
|
btrfs su cr /mnt/@ &>/dev/null
|
|
btrfs su cr /mnt/@boot &>/dev/null
|
|
btrfs su cr /mnt/@home &>/dev/null
|
|
btrfs su cr /mnt/@snapshots &>/dev/null
|
|
btrfs su cr /mnt/@var_log &>/dev/null
|
|
btrfs su cr /mnt/@swap &>/dev/null
|
|
|
|
# Mounting the newly created subvolumes.
|
|
umount /mnt
|
|
echo "Mounting the newly created subvolumes."
|
|
mount -o ssd,noatime,space_cache,compress=zstd,subvol=@ $BTRFS /mnt
|
|
mkdir -p /mnt/{home,.snapshots,/var/log,swap,boot}
|
|
mount -o ssd,noatime,space_cache,compress=zstd,subvol=@boot $BTRFS /mnt/boot
|
|
mount -o ssd,noatime,space_cache.compress=zstd,subvol=@home $BTRFS /mnt/home
|
|
mount -o ssd,noatime,space_cache,compress=zstd,subvol=@snapshots $BTRFS /mnt/.snapshots
|
|
mount -o ssd,noatime,space_cache,nodatacow,subvol=@var_log $BTRFS /mnt/var/log
|
|
mount -o nodatacow,subvol=@swap $BTRFS /mnt/swap
|
|
mkdir /mnt/boot/efi
|
|
mount $ESP /mnt/boot/efi
|
|
|
|
chattr +C @/mnt/var/log
|
|
chattr +C @/mnt/swap
|
|
|
|
# Pacstrap (setting up a base sytem onto the new root).
|
|
echo "Installing the base system (it may take a while)."
|
|
pacstrap /mnt base linux linux-firmware btrfs-progs grub grub-btrfs efibootmgr snapper sudo networkmanager
|
|
|
|
# Generating /etc/fstab.
|
|
echo "Generating a new fstab."
|
|
genfstab -U /mnt >> /mnt/etc/fstab
|
|
|
|
# Setting hostname.
|
|
read -r -p "Please enter the hostname: " hostname
|
|
echo $hostname > /mnt/etc/hostname
|
|
|
|
# Setting up locales.
|
|
read -r -p "Please insert the locale you use (format: xx_XX): " locale
|
|
echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen
|
|
echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf
|
|
|
|
# Setting up keyboard layout.
|
|
read -r -p "Please insert the keyboard layout you use: " kblayout
|
|
echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf
|
|
|
|
# Setting hosts file.
|
|
echo "Setting hosts file."
|
|
cat > /mnt/etc/hosts <<EOF
|
|
127.0.0.1 localhost
|
|
::1 localhost
|
|
127.0.1.1 $hostname.localdomain $hostname
|
|
EOF
|
|
|
|
# Configuring /etc/mkinitcpio.conf
|
|
echo "Configuring /etc/mkinitcpio.conf for LUKS hook."
|
|
sed -i -e 's,modconf block filesystems keyboard,keyboard keymap modconf block encrypt filesystems,g' /mnt/etc/mkinitcpio.conf
|
|
|
|
# Enabling LUKS in GRUB, setting up the UUID of the LUKS container and enabling boot on BTRFS.
|
|
UUID=$(blkid $Cryptroot | cut -f2 -d'"')
|
|
sed -i 's/#\(GRUB_ENABLE_CRYPTODISK=y\)/\1/' /mnt/etc/default/grub
|
|
sed -i -e "s,quiet,quiet cryptdevice=UUID=$UUID:cryptroot root=$BTRFS,g" /mnt/etc/default/grub
|
|
echo "# Booting with BTRFS subvolume" >> /mnt/etc/default/grub
|
|
echo "GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true" >> /mnt/etc/default/grub
|
|
|
|
# Creating a swapfile.
|
|
read -r -p "Do you want a swapfile? [y/N]? " response
|
|
response=${response,,}
|
|
if [[ "$response" =~ ^(yes|y)$ ]]
|
|
then
|
|
read -r -p "How much big should the swap file be? Type the size, just a number (eg: 1 = 1GB..): " swap
|
|
truncate -s 0 /mnt/swap/swapfile
|
|
chattr +C /mnt/swap/swapfile
|
|
btrfs property set /mnt/swap/swapfile compression none &>/dev/null
|
|
dd if=/dev/zero of=/mnt/swap/swapfile bs=1G count=$swap &>/dev/null
|
|
chmod 600 /mnt/swap/swapfile
|
|
mkswap /mnt/swap/swapfile &>/dev/null
|
|
swapon /mnt/swap/swapfile &>/dev/null
|
|
echo "/swap/swapfile none swap defaults 0 0" >> /mnt/etc/fstab
|
|
else
|
|
# Removing swap subvolumes and fstab entry in case it's not needed.
|
|
echo "Deleting BTRFS swap subvolume."
|
|
mount $BTRFS -o subvolid=5 /home
|
|
head -n -4 /home/@/etc/fstab > /home/@/etc/new_fstab && mv /home/@/etc/new_fstab /home/@/etc/fstab
|
|
btrfs su de /home/@swap &>/dev/null
|
|
umount -R /home
|
|
echo "No swapfile has been added."
|
|
fi
|
|
|
|
# Configuring the system.
|
|
arch-chroot /mnt /bin/bash -e <<EOF
|
|
|
|
# Setting up timezone.
|
|
ln -sf /usr/share/zoneinfo/$(curl -s http://ip-api.com/line?fields=timezone) /etc/localtime &>/dev/null
|
|
|
|
# Setting up clock.
|
|
hwclock --systohc
|
|
|
|
# Generating locales.
|
|
echo "Generating locales."
|
|
locale-gen &>/dev/null
|
|
|
|
# Generating a new initramfs.
|
|
echo "Creating a new initramfs."
|
|
mkinitcpio -P &>/dev/null
|
|
|
|
# Snapper configuration
|
|
umount /.snapshots
|
|
rm -r /.snapshots
|
|
snapper --no-dbus -c root create-config /
|
|
btrfs subvolume delete /.snapshots &>/dev/null
|
|
mkdir /.snapshots
|
|
mount -a
|
|
chmod 750 /.snapshots
|
|
|
|
# Installing GRUB.
|
|
echo "Installing GRUB on /boot."
|
|
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB
|
|
|
|
# Creating grub config file.
|
|
echo "Creating GRUB config file."
|
|
grub-mkconfig -o /boot/grub/grub.cfg
|
|
|
|
EOF
|
|
|
|
# Setting root password.
|
|
echo "Setting root password."
|
|
arch-chroot /mnt /bin/passwd
|
|
|
|
# Enabling NetworkManager service.
|
|
echo "Enabling NetworkManager."
|
|
systemctl enable NetworkManager --root=/mnt &>/dev/null
|
|
|
|
# Enabling Snapper automatic snapshots.
|
|
echo "Enabling Snapper."
|
|
systemctl enable snapper-timeline.timer --root=/mnt &>/dev/null
|
|
systemctl enable snapper-cleanup.timer --root=/mnt &>/dev/null
|
|
|
|
echo "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)."
|
|
exit
|