Minimal instructions for installing Void Linux on MBR + Legacy BIOS

void-linux-install.sh

# Obtain the latest Void Linux base live ISO from:
# https://voidlinux.org/download/ (plain musl version)

# Write it to a USB drive:
# sudo dd bs=4M if=void-live-x86_64-musl-20181111.iso of=/dev/sdb status=progress oflag=sync

# Switch to bash (easier to use while installing)
bash

# Set UK keymap
loadkeys uk

# Set up WiFi
wpa_passphrase <MYSSID> <key> >> /etc/wpa_supplicant/wpa_supplicant.conf
wpa_supplicant -i <device> -c /etc/wpa_supplicant/wpa_supplicant.conf -B

# Set up partitions (MBR)
parted /dev/sdX mklabel msdos
cfdisk /dev/sdX
# 1 - 1G primary partition, set the bootable flag
# 2 - 100% primary partition

# Set the filesystem for the boot partition
mkfs.ext2 /dev/sdX1

# Create the encryptied partitions
cryptsetup luksFormat --type luks2 --cipher aes-xts-plain64 --key-size 512 --hash sha256 /dev/sdX2
cryptsetup luksOpen /dev/sdX2 sysroot

# Set up LVM
pvcreate /dev/mapper/sysroot
vgcreate void /dev/mapper/sysroot
lvcreate --size 2G void --name swap
lvcreate -l +100%FREE void --name root

# Set the filesystems
mkfs.xfs -i sparse=0 /dev/mapper/void-root
mkswap /dev/mapper/void-swap

# Mount the new filesystem
mount /dev/mapper/void-root /mnt
swapon /dev/mapper/void-swap
mkdir /mnt/boot
mount /dev/sdX1 /mnt/boot
for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

# Install Void Linux
xbps-install -Sy -R https://mirrors.dotsrc.org/voidlinux/current -r /mnt base-system lvm2 cryptsetup grub nano htop tmux

# Chroot into the new Void Linux install and set permissions
chroot /mnt
bash

# Set permissions
chown root:root /
chmod 755 /

# Set root password
passwd root

# Add a new user
useradd -m -s /bin/bash -U -G wheel,users,audio,video,cdrom,input MYUSERNAME
passwd MYUSERNAME

# Configure suders
nano /etc/sudoers # Uncomment the line containing %wheel ALL=(ALL) ALL

# Configure timezone and default keymap
nano /etc/rc.conf
# TIMEZONE="Europe/Jersey" # (https://en.wikipedia.org/wiki/List_of_tz_database_time_zones)
# KEYMAP="uk"

# Set up hostname
echo somehostname > /etc/hostname

# Set up the locale
echo "LANG=en_US.UTF-8" > /etc/locale.conf
echo "en_US.UTF-8 UTF-8" >> /etc/default/libc-locales
xbps-reconfigure -f glibc-locales

# UUID for disks
BOOT_UUID=$(blkid -o value -s UUID /dev/sdX1)
CRYPTD_UUID=$(blkid -o value -s UUID /dev/sdX1)

# Edit fstab
nano /etc/fstab
# <file system>	   	   <dir> <type>  <options>             <dump>  <pass>
# /dev/mapper/void-root  /     xfs     defaults              0       1
# /dev/voidvm/void-swap  swap  swap    defaults              0       0
echo "UUID=${BOOT_UUID} /boot ext2 defaults 0 2"

# Configure GRUB
echo "GRUB_CMDLINE_LINUX_DEFAULT=\"loglevel=4 slub_debug=P page_poison=1 acpi.ec_no_wakeup=1 rd.auto=1 cryptdevice=UUID=${CRYPTD_UUID}:sysroot root=/dev/mapper/void-root resume=/dev/mapper/void-swap\"" >> /etc/default/grub
echo "GRUB_ENABLE_CRYPTODISK=y" >> /etc/default/grub

# Install grub
grub-install /dev/sdX
xbps-reconfigure -f linux4.19 # use the current known kernel version

# Copy WiFi config over to the new install
cp /etc/wpa_supplicant/wpa_supplicant.conf /mnt/etc/wpa_supplicant/wpa_supplicant.conf

# Reboot
exit
umount -R /mnt
reboot

# Quick chroot back in if needed:
cryptsetup luksOpen /dev/sdX2 sysroot
vgchange -a y void
mount /dev/mapper/void-root /mnt
mount /dev/sdX1 /mnt/boot
for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done
chroot /mnt
bash

Thanks! Extremely helpful