booster/debian/booster.postinst

#!/bin/bash

set -e

touch /etc/vconsole.conf

# Check if there are entries in crypttab
crypt_check=$(cat /etc/crypttab | grep -v '^#' || true)
if [[ -n $crypt_check ]]
then
  # Use the first crypttab entry as luks for booster (valid for calamares and probably most installers)
  if cat /etc/crypttab | grep -v '^#' | head -n1 | cut -f2 | grep -i "UUID="
  then
    # Check if luks is already configured in refind
    if cat /boot/refind_linux.conf | grep -i 'rd.luks'
    then
	true
    else
      sed -i "s#root=#rd.luks.name="$(cat /etc/crypttab | grep -v '^#' | head -n1 | cut -f2 | sed "s#UUID=##")"="$(cat /etc/crypttab | grep -v '^#' | head -n1 | cut -f1)" root=#" /boot/refind_linux.conf
    fi
  else
    echo -e "ERROR 1: /etc/crypttab is invalid!\nFirst crypttab entry (presumed to be root luks) is not defined via UUID\nPlease make sure to define luks for root as the first entry in /etc/crypttab via UUID (use blkid)"
    exit 1
  fi
fi

# Add nvidia support if an nvidia card is detected
if lspci -k | grep -iEA3 '^[[:alnum:]]{2}:[[:alnum:]]{2}.*VGA|3D|DISPLAY' | grep -i nvidia && lspci -k | grep -iEA3 '^[[:alnum:]]{2}:[[:alnum:]]{2}.*VGA|3D|DISPLAY' | grep -i -E 'kernel modules|kernel driver' | grep -i nvidia
then
    if cat /boot/refind_linux.conf | grep -i 'rd.modules_force_load'
    then
	true
    else
      sed -i "s#root=#rd.modules_force_load=nvidia,usbhid root=#" /boot/refind_linux.conf
    fi
fi

cp -f /usr/lib/booster/update-initramfs /usr/sbin/update-initramfs
chmod +x /usr/sbin/update-initramfs
update-initramfs -c -k all
rm /boot/initrd.img* || true