diff --git a/modules/initramfs/initramfs.sh b/modules/initramfs/initramfs.sh
index c8ef33db..b81a4ac2 100644
--- a/modules/initramfs/initramfs.sh
+++ b/modules/initramfs/initramfs.sh
@@ -1,19 +1,19 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
-set -euo pipefail
+set -eu
 
-if ! command -v rpm-ostree &> /dev/null || ! command -v bootc &> /dev/null; then
+if ! command -v rpm-ostree >/dev/null 2>&1 || ! command -v bootc >/dev/null 2>&1; then
   echo "This module is only compatible with Fedora Atomic images"
   exit 1
 fi
 
-if [[ "${OS_VERSION}" -le 40 ]]; then
+if [ "${OS_VERSION}" -le 40 ]; then
   echo "This module is only compatible with Fedora 41+ images."
   exit 1
 fi
 
 # If images already installed cliwrap, use it. Only used in transition period, so it should be removed when base images like Ublue remove cliwrap
-if [[ -f "/usr/libexec/rpm-ostree/wrapped/dracut" ]]; then
+if [ -f "/usr/libexec/rpm-ostree/wrapped/dracut" ]; then
   DRACUT="/usr/libexec/rpm-ostree/wrapped/dracut"
 else
   DRACUT="/usr/bin/dracut"
@@ -25,10 +25,12 @@ fi
 # Refactor the module to support UKIs once they are starting to be used, if possible.
 # That won't be soon, so this module should work for good period of time
 
-KERNEL_MODULES_PATH="/usr/lib/modules"
-readarray -t QUALIFIED_KERNEL < <(find "${KERNEL_MODULES_PATH}" -mindepth 1 -maxdepth 1 -type d -printf "%f\n")
+kernel_count=0
+for kernel_path in /usr/lib/modules/*/; do
+  kernel_count=$(( kernel_count + 1 ))
+done
 
-if [[ "${#QUALIFIED_KERNEL[@]}" -gt 1 ]]; then
+if [ "${kernel_count}" -gt 1 ]; then
   echo "NOTE: There are several versions of kernel's initramfs."
   echo "      There is a possibility that you have multiple kernels installed in the image."
   echo "      It is most ideal to have only 1 kernel, to make initramfs regeneration faster."
@@ -45,8 +47,10 @@ kmsgloglvl=0
 fileloglvl=0
 EOF
 
-for qual_kernel in "${QUALIFIED_KERNEL[@]}"; do
-  INITRAMFS_IMAGE="${KERNEL_MODULES_PATH}/${qual_kernel}/initramfs.img"
+for kernel_path in /usr/lib/modules/*/; do
+  kernel_path="${kernel_path%/}"
+  initramfs_image="${kernel_path}/initramfs.img"
+  qual_kernel=${kernel_path##*/}
   echo "Starting initramfs regeneration for kernel version: ${qual_kernel}"
   "${DRACUT}" \
     --kver "${qual_kernel}" \
@@ -54,8 +58,8 @@ for qual_kernel in "${QUALIFIED_KERNEL[@]}"; do
     --add 'ostree' \
     --no-hostonly \
     --reproducible \
-    "${INITRAMFS_IMAGE}"
-  chmod 0600 "${INITRAMFS_IMAGE}"
+    "${initramfs_image}"
+  chmod 0600 "${initramfs_image}"
 done
 
 rm -- "${temp_conf_file}"