Modified dracut-hook files

90-dracut-install.hook

[Trigger]
Type = Path
Operation = Install
Operation = Upgrade
Target = usr/lib/modules/*/vmlinuz
Target = usr/lib/dracut/*

[Action]
Description = Updating initramfs...
When = PostTransaction
Exec = /usr/share/libalpm/scripts/dracut-install
NeedsTargets

dracut-install

#!/bin/bash -e

kernels=()
all=0

while read -r line; do
   if [[ "${line}" != usr/lib/modules/* ]]; then
      all=1 # Dracut files have been updated
      continue 
   fi

   kernels+=("/${line%/vmlinuz}")
done

if (( all )); then
   # add every kernel present in /usr/lib/modules/
   kernels=($(ls -d /usr/lib/modules/*))
fi

for kernel in "${kernels[@]}"; do
   if ! pacman -Qqo "${kernel}/pkgbase" > /dev/null 2>&1; then
      # if pkgbase does not exist or does not belong to any package then skip this kernel
      continue
   fi
   read -r pkgbase < "${kernel}/pkgbase"
   version="${kernel##*/}"

   install -Dm0644 "${kernel}/vmlinuz" "/boot/vmlinuz-${pkgbase}"

   echo ":: Building initramfs for ${pkgbase}-${version}"
   dracut --force --hostonly --no-hostonly-cmdline "/boot/initramfs-${pkgbase}.img" --kver "${version}"
   echo ":: Building fallback initramfs for ${pkgbase}-${version}"
   dracut --force --no-hostonly --no-hostonly-cmdline "/boot/initramfs-${pkgbase}-fallback.img" --kver "${version}"
done