diff --git a/kernel-modules/intel-opae-fpga/debian/dl_hook b/kernel-modules/intel-opae-fpga/debian/dl_hook
index da2c2d58..e6e37ce9 100755
--- a/kernel-modules/intel-opae-fpga/debian/dl_hook
+++ b/kernel-modules/intel-opae-fpga/debian/dl_hook
@@ -1,29 +1,13 @@
 #!/bin/bash
 
 # The only parameter is the name of the folder where the source code
-# is extracted to. Pay attention to that the extracted package should
+# is extracted to. Be aware that the extracted package should
 # be put at the same path where this script is located.
-# Tools needed: unzip/rpm2cpio/cpio/md5sum
+# Tools needed: unzip/rpm2cpio/cpio
 
 OPAE_PKG=OPAE_1.3.7-5_el7.zip
-OPAE_VER=1.3.7-5
-OPAE_MD5SUM=389888f2bb3e8cfb002a1ba880fc6823
 OPAE_DRV=opae-intel-fpga-driver-2.0.1
 
-wget https://github.com/OPAE/opae-sdk/releases/download/${OPAE_VER}/${OPAE_PKG}
-if [ $? -ne 0 ]
-then
-    echo "wget failed: OPAE source!"
-    exit 1
-fi
-
-md5sum ./${OPAE_PKG} | grep ${OPAE_MD5SUM}
-if [ $? -ne 0 ]
-then
-    echo "Wrong md5sum: OPAE source!"
-    exit 1
-fi
-
 unzip ./${OPAE_PKG}
 if [ $? -ne 0 ]
 then
diff --git a/kernel-modules/intel-opae-fpga/debian/meta_data.yaml b/kernel-modules/intel-opae-fpga/debian/meta_data.yaml
index 69269029..21a122e9 100644
--- a/kernel-modules/intel-opae-fpga/debian/meta_data.yaml
+++ b/kernel-modules/intel-opae-fpga/debian/meta_data.yaml
@@ -2,6 +2,13 @@
 debver: 2.0.1-10
 debname: kmod-opae-fpga-driver
 dl_hook: dl_hook
+dl_files:
+  OPAE_1.3.7-5_el7.zip:
+    topdir: null
+    url:
+      "https://github.com/OPAE/opae-sdk/releases/download/1.3.7-5/\
+       OPAE_1.3.7-5_el7.zip"
+    md5sum: 389888f2bb3e8cfb002a1ba880fc6823
 revision:
   dist: $STX_DIST
   PKG_GITREVCOUNT: true
diff --git a/kernel-rt/debian/dl_hook b/kernel-rt/debian/dl_hook
index 13e20ef5..a326c2fd 100755
--- a/kernel-rt/debian/dl_hook
+++ b/kernel-rt/debian/dl_hook
@@ -22,31 +22,11 @@
 # the extracted source code. Be aware that this new directory will be
 # created in the same directory as where this script is located when
 # building.
-# Tools needed: wget/tar/md5sum/sed
+# Tools needed: tar/sed
 
 KERNEL_HEAD_COMMIT=8048444fc7e44c6fc04a5e0b35d6117fe51c17fc
-KERNEL_MD5SUM=ed39ae794109417f7ab54a0a3f58b64e
-
-DEBIAN_DL_PATH=http://snapshot.debian.org/archive/debian/20210410T143728Z/pool/main/l/linux/
 DEBIAN_FILE=linux_5.10.28-1.debian.tar.xz
-DEBIAN_MD5SUM=de03a25a5c7e12ec1e559b6b0ce8889f
 
-if [ ! -f "./linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz" ]
-then
-    wget https://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto/snapshot/linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz
-    if [ $? -ne 0 ]
-    then
-        echo "wget failed: linux-yocto source!"
-        exit 1
-    fi
-fi
-
-md5sum ./linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz | grep ${KERNEL_MD5SUM}
-if [ $? -ne 0 ]
-then
-    echo "Wrong md5sum: linux-yocto source!"
-    exit 1
-fi
 tar xvf linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz
 if [ $? -ne 0 ]
 then
@@ -56,26 +36,12 @@ fi
 mv linux-yocto-${KERNEL_HEAD_COMMIT} $1
 
 cd $1
-wget ${DEBIAN_DL_PATH}${DEBIAN_FILE}
-if [ $? -ne 0 ]
-then
-    echo "wget failed: debian folder for kernel!"
-    exit 1
-fi
-
-md5sum ./${DEBIAN_FILE} | grep ${DEBIAN_MD5SUM}
-if [ $? -ne 0 ]
-then
-    echo "Wrong md5sum: debian folder for kernel!"
-    exit 1
-fi
-tar xvf ${DEBIAN_FILE}
+tar xvf ../${DEBIAN_FILE}
 if [ $? -ne 0 ]
 then
     echo "tar failed: debian folder for kernel!"
     exit 1
 fi
-rm ${DEBIAN_FILE}
 
 # The debian folder is written to build "linux". If use this folder
 # to build similar things for kernel-rt, all the packages are renamed
diff --git a/kernel-rt/debian/meta_data.yaml b/kernel-rt/debian/meta_data.yaml
index 4d2179e8..b334de04 100644
--- a/kernel-rt/debian/meta_data.yaml
+++ b/kernel-rt/debian/meta_data.yaml
@@ -2,6 +2,19 @@
 debver: 5.10.74
 debname: linux-rt
 dl_hook: dl_hook
+dl_files:
+  linux-yocto-8048444fc7e44c6fc04a5e0b35d6117fe51c17fc.tar.gz:
+    topdir: null
+    url:
+      "https://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto/snapshot/\
+       linux-yocto-8048444fc7e44c6fc04a5e0b35d6117fe51c17fc.tar.gz"
+    md5sum: ed39ae794109417f7ab54a0a3f58b64e
+  linux_5.10.28-1.debian.tar.xz:
+    topdir: null
+    url:
+      "http://snapshot.debian.org/archive/debian/20210410T143728Z/pool/main/\
+       l/linux/linux_5.10.28-1.debian.tar.xz"
+    md5sum: de03a25a5c7e12ec1e559b6b0ce8889f
 revision:
   dist: $STX_DIST
   PKG_GITREVCOUNT: true
diff --git a/kernel-std/debian/dl_hook b/kernel-std/debian/dl_hook
index 6c9dbb58..9eaeca2b 100755
--- a/kernel-std/debian/dl_hook
+++ b/kernel-std/debian/dl_hook
@@ -3,31 +3,11 @@
 # The only parameter is the name of the folder where the source code
 # is extracted to. Pay attention to that the extracted package should
 # be put at the same path where this script is located.
-# Tools needed: wget/tar/md5sum
+# Tools needed: tar
 
 KERNEL_HEAD_COMMIT=9e84a42af61ff9c6feb89ab8d61ee5f25fb35c72
-KERNEL_MD5SUM=58ed543af9eb3767a7c576a603c5eb94
-
-DEBIAN_DL_PATH=http://snapshot.debian.org/archive/debian/20210410T143728Z/pool/main/l/linux/
 DEBIAN_FILE=linux_5.10.28-1.debian.tar.xz
-DEBIAN_MD5SUM=de03a25a5c7e12ec1e559b6b0ce8889f
 
-if [ ! -f "./linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz" ]
-then
-    wget https://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto/snapshot/linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz
-    if [ $? -ne 0 ]
-    then
-        echo "wget failed: linux-yocto source!"
-        exit 1
-    fi
-fi
-
-md5sum ./linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz | grep ${KERNEL_MD5SUM}
-if [ $? -ne 0 ]
-then
-    echo "Wrong md5sum: linux-yocto source!"
-    exit 1
-fi
 tar xvf linux-yocto-${KERNEL_HEAD_COMMIT}.tar.gz
 if [ $? -ne 0 ]
 then
@@ -37,23 +17,9 @@ fi
 mv linux-yocto-${KERNEL_HEAD_COMMIT} $1
 
 cd $1
-wget ${DEBIAN_DL_PATH}${DEBIAN_FILE}
-if [ $? -ne 0 ]
-then
-    echo "wget failed: debian folder for kernel!"
-    exit 1
-fi
-
-md5sum ./${DEBIAN_FILE} | grep ${DEBIAN_MD5SUM}
-if [ $? -ne 0 ]
-then
-    echo "Wrong md5sum: debian folder for kernel!"
-    exit 1
-fi
-tar xvf ${DEBIAN_FILE}
+tar xvf ../${DEBIAN_FILE}
 if [ $? -ne 0 ]
 then
     echo "tar failed: debian folder for kernel!"
     exit 1
 fi
-rm ${DEBIAN_FILE}
diff --git a/kernel-std/debian/meta_data.yaml b/kernel-std/debian/meta_data.yaml
index 62c384bc..62229d20 100644
--- a/kernel-std/debian/meta_data.yaml
+++ b/kernel-std/debian/meta_data.yaml
@@ -2,6 +2,19 @@
 debver: 5.10.74
 debname: linux
 dl_hook: dl_hook
+dl_files:
+  linux-yocto-9e84a42af61ff9c6feb89ab8d61ee5f25fb35c72.tar.gz:
+    topdir: null
+    url:
+      "https://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto/snapshot/\
+       linux-yocto-9e84a42af61ff9c6feb89ab8d61ee5f25fb35c72.tar.gz"
+    md5sum: 58ed543af9eb3767a7c576a603c5eb94
+  linux_5.10.28-1.debian.tar.xz:
+    topdir: null
+    url:
+      "http://snapshot.debian.org/archive/debian/20210410T143728Z/pool/main/\
+       l/linux/linux_5.10.28-1.debian.tar.xz"
+    md5sum: de03a25a5c7e12ec1e559b6b0ce8889f
 revision:
   dist: $STX_DIST
   PKG_GITREVCOUNT: true