init-void.sh

#!/usr/bin/env bash

# 1. First make sure you create a GPT disk with two partitions (with `cfdisk`):
#   - EFI Partition (128M)
#   - Linux partition (Rest)

read -p "Enter hostname: " hostname
read -p "Enter /dev device for EFI: " bootdev
read -p "Enter /dev device for root: " rootdev 

BTRFS_OPTS="rw,noatime,compress=zstd,discard=async"
REPO="https://repo-de.voidlinux.org/current"
ARCH="x86_64"

# setup luks encryption
cryptsetup luksFormat --type luks1 -y /dev/vda2
cryptsetup open /dev/vda2 cryptroot

# btrfs setup
mkfs.btrfs -L void /dev/mapper/cryptroot
mount -o $BTRFS_OPTS /dev/mapper/cryptroot /mnt 
btrfs su cr /mnt/@
btrfs su cr /mnt/@home
btrfs su cr /mnt/@snapshots
umount /mnt
mount -o $BTRFS_OPTS,subvol=@ /dev/mapper/cryptroot /mnt
mkdir /mnt/{home,.snapshots}
mount -o $BTRFS_OPTS,subvol=@home /dev/mapper/cryptroot /mnt/home
mount -o $BTRFS_OPTS,subvol=@snapshots /dev/mapper/cryptroot /mnt/.snapshots

# Certain directories that don’t need to be included in the snapshots, we will create some nested subvolumes for these specific directories
mkdir -p /mnt/var/cache
btrfs su cr /mnt/var/cache/xbps
btrfs su cr /mnt/var/tmp
btrfs su cr /mnt/srv

# EFI setup
mkfs.fat -F 32 -n EFI /dev/vda1
mkdir -p /mnt/boot/efi
mount -o rw,noatime /dev/vda1 /mnt/boot/efi

# copy RSA keys
mkdir -p /mnt/var/db/xbps/keys
cp /var/db/xbps/keys/* /mnt/var/db/xbps/keys/

# System install
XBPS_ARCH=$ARCH xbps-install -S -R "$REPO" -r /mnt base-system cryptsetup grub-x86_64-efi helix
xchroot /mnt chmod 755 /
xchroot /mnt echo "change root user password"
xchroot /mnt passwd root
xchroot /mnt echo $hostname > /etc/hostname
xchroot /mnt echo "LANG=en_US.UTF-8" > /etc/locale.conf
xchroot /mnt echo "en_US.UTF-8 UTF-8" >> /etc/default/libc-locales
xchroot /mnt xbps-reconfigure -f glibc-locales

# create new user
xchroot /mnt echo "create main user"
xchroot /mnt  useradd queckezz
xchroot /mnt passwd queckezz
xchroot /mnt usermod -aG wheel queckezz

# setup /etc/fstab
EFI_UUID=$(blkid -s UUID -o value /dev/vda1)
ROOT_UUID=$(blkid -s UUID -o value /dev/mapper/cryptroot)
LUKS_UUID=$(blkid -s UUID -o value /dev/vda2)

cat <<EOF > /mnt/etc/fstab
UUID=$ROOT_UUID / btrfs $BTRFS_OPTS,subvol=@ 0 1
UUID=$ROOT_UUID /home btrfs $BTRFS_OPTS,subvol=@home 0 2
UUID=$ROOT_UUID /.snapshots btrfs $BTRFS_OPTS,subvol=@snapshots 0 2
UUID=$EFI_UUID /boot/efi vfat defaults,noatime 0 2
tmpfs /tmp tmpfs defaults,nosuid,nodev 0 0
EOF

# grub install
cat <<EOF > /mnt/etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Void"
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=4 rd.auto=1 rd.luks.allow-discards"
# GRUB_BACKGROUND=/usr/share/void-artwork/splash.png
GRUB_ENABLE_CRYPTODISK=y
EOF
xchroot /mnt grub-install /dev/vda --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id="void"

# link services for wired connection
xchroot /mnt ln -s /etc/sv/dhcpcd-eth0 /var/service
xchroot /mnt ln -s /etc/sv/dhcpcd /var/service

# Ensure an initramfs is generated:
xchroot /mnt xbps-reconfigure -fa

# cleanup
# umount -R /mnt
# reboot

todo:

• To create a superuser, uncomment the line
  -- #%wheel ALL=(ALL) ALL