From 9ca53063ee3530280f9a656020d3beada2905342 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Fri, 28 Feb 2020 13:39:05 +0100
Subject: [PATCH] test: use dd to write status to marker disk

---
 test/TEST-01-BASIC/create-root.sh               | 2 +-
 test/TEST-01-BASIC/test-init.sh                 | 2 +-
 test/TEST-01-BASIC/test.sh                      | 6 +++---
 test/TEST-02-SYSTEMD/create-root.sh             | 2 +-
 test/TEST-02-SYSTEMD/test-init.sh               | 2 +-
 test/TEST-02-SYSTEMD/test.sh                    | 6 +++---
 test/TEST-03-USR-MOUNT/create-root.sh           | 2 +-
 test/TEST-03-USR-MOUNT/test-init.sh             | 2 +-
 test/TEST-03-USR-MOUNT/test.sh                  | 6 +++---
 test/TEST-04-FULL-SYSTEMD/create-root.sh        | 2 +-
 test/TEST-04-FULL-SYSTEMD/test-init.sh          | 2 +-
 test/TEST-04-FULL-SYSTEMD/test.sh               | 6 +++---
 test/TEST-10-RAID/create-root.sh                | 2 +-
 test/TEST-10-RAID/test-init.sh                  | 2 +-
 test/TEST-10-RAID/test.sh                       | 6 +++---
 test/TEST-11-LVM/create-root.sh                 | 2 +-
 test/TEST-11-LVM/test-init.sh                   | 2 +-
 test/TEST-11-LVM/test.sh                        | 6 +++---
 test/TEST-12-RAID-DEG/create-root.sh            | 2 +-
 test/TEST-12-RAID-DEG/test-init.sh              | 2 +-
 test/TEST-12-RAID-DEG/test.sh                   | 4 ++--
 test/TEST-13-ENC-RAID-LVM/create-root.sh        | 2 +-
 test/TEST-13-ENC-RAID-LVM/test-init.sh          | 2 +-
 test/TEST-13-ENC-RAID-LVM/test.sh               | 6 +++---
 test/TEST-14-IMSM/create-root.sh                | 2 +-
 test/TEST-14-IMSM/test-init.sh                  | 2 +-
 test/TEST-14-IMSM/test.sh                       | 4 ++--
 test/TEST-15-BTRFSRAID/create-root.sh           | 2 +-
 test/TEST-15-BTRFSRAID/test-init.sh             | 2 +-
 test/TEST-15-BTRFSRAID/test.sh                  | 4 ++--
 test/TEST-16-DMSQUASH/test-init.sh              | 2 +-
 test/TEST-16-DMSQUASH/test.sh                   | 2 +-
 test/TEST-17-LVM-THIN/create-root.sh            | 2 +-
 test/TEST-17-LVM-THIN/test-init.sh              | 2 +-
 test/TEST-17-LVM-THIN/test.sh                   | 4 ++--
 test/TEST-20-NFS/client-init.sh                 | 2 +-
 test/TEST-20-NFS/test.sh                        | 2 +-
 test/TEST-30-ISCSI/client-init.sh               | 2 +-
 test/TEST-30-ISCSI/create-root.sh               | 2 +-
 test/TEST-30-ISCSI/test.sh                      | 4 ++--
 test/TEST-35-ISCSI-MULTI/client-init.sh         | 2 +-
 test/TEST-35-ISCSI-MULTI/create-root.sh         | 2 +-
 test/TEST-35-ISCSI-MULTI/test.sh                | 4 ++--
 test/TEST-40-NBD/client-init.sh                 | 2 +-
 test/TEST-40-NBD/create-root.sh                 | 2 +-
 test/TEST-40-NBD/test.sh                        | 8 ++++----
 test/TEST-50-MULTINIC/client-init.sh            | 2 +-
 test/TEST-50-MULTINIC/test.sh                   | 2 +-
 test/TEST-60-BONDBRIDGEVLANIFCFG/client-init.sh | 2 +-
 test/TEST-60-BONDBRIDGEVLANIFCFG/test.sh        | 2 +-
 50 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/test/TEST-01-BASIC/create-root.sh b/test/TEST-01-BASIC/create-root.sh
index 8b28c3098..97071fa35 100755
--- a/test/TEST-01-BASIC/create-root.sh
+++ b/test/TEST-01-BASIC/create-root.sh
@@ -19,7 +19,7 @@ mount /dev/sda2 /root
 cp -a -t /root /source/*
 mkdir -p /root/run
 umount /root
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 sync
 poweroff -f
 
diff --git a/test/TEST-01-BASIC/test-init.sh b/test/TEST-01-BASIC/test-init.sh
index 78f124a5b..07fd0ed48 100755
--- a/test/TEST-01-BASIC/test-init.sh
+++ b/test/TEST-01-BASIC/test-init.sh
@@ -100,7 +100,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sdb
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdb
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-01-BASIC/test.sh b/test/TEST-01-BASIC/test.sh
index 37f77c365..c47098eaf 100755
--- a/test/TEST-01-BASIC/test.sh
+++ b/test/TEST-01-BASIC/test.sh
@@ -38,7 +38,7 @@ test_setup() {
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
                       mount dmesg dhclient mkdir cp ping dhclient \
-                      umount strace less setsid
+                      umount strace less setsid dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -57,7 +57,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.ext3 poweroff cp umount sync
+        inst_multiple sfdisk mkfs.ext3 poweroff cp umount sync dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -85,7 +85,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-02-SYSTEMD/create-root.sh b/test/TEST-02-SYSTEMD/create-root.sh
index 0e60e7422..457a74bb0 100755
--- a/test/TEST-02-SYSTEMD/create-root.sh
+++ b/test/TEST-02-SYSTEMD/create-root.sh
@@ -19,6 +19,6 @@ mount /dev/sda2 /root
 cp -a -t /root /source/*
 mkdir -p /root/run
 umount /root
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
 
diff --git a/test/TEST-02-SYSTEMD/test-init.sh b/test/TEST-02-SYSTEMD/test-init.sh
index 63fd58f7f..66bd1c3ad 100755
--- a/test/TEST-02-SYSTEMD/test-init.sh
+++ b/test/TEST-02-SYSTEMD/test-init.sh
@@ -102,7 +102,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 
 plymouth --quit
 exec </dev/console >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda1
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-02-SYSTEMD/test.sh b/test/TEST-02-SYSTEMD/test.sh
index a08bfe5ce..cf1fcaa52 100755
--- a/test/TEST-02-SYSTEMD/test.sh
+++ b/test/TEST-02-SYSTEMD/test.sh
@@ -35,7 +35,7 @@ test_setup() {
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
                       mount dmesg dhclient mkdir cp ping dhclient \
-                      umount strace less setsid systemd-analyze
+                      umount strace less setsid systemd-analyze dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -54,7 +54,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.ext3 poweroff cp umount
+        inst_multiple sfdisk mkfs.ext3 poweroff cp umount dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -82,7 +82,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook pre-pivot 000 ./systemd-analyze.sh
         inst_hook emergency 000 ./hard-off.sh
diff --git a/test/TEST-03-USR-MOUNT/create-root.sh b/test/TEST-03-USR-MOUNT/create-root.sh
index 478d5ef4d..238fad06a 100755
--- a/test/TEST-03-USR-MOUNT/create-root.sh
+++ b/test/TEST-03-USR-MOUNT/create-root.sh
@@ -37,7 +37,7 @@ btrfs filesystem sync /root/usr
 btrfs filesystem sync /root
 umount /root/usr
 umount /root
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 udevadm settle
 sync
 poweroff -f
diff --git a/test/TEST-03-USR-MOUNT/test-init.sh b/test/TEST-03-USR-MOUNT/test-init.sh
index dc03359a5..d49372f68 100755
--- a/test/TEST-03-USR-MOUNT/test-init.sh
+++ b/test/TEST-03-USR-MOUNT/test-init.sh
@@ -109,7 +109,7 @@ ismounted() {
 }
 
 if ismounted /usr; then
-    echo "dracut-root-block-success" >/dev/sdc
+    echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdc
 fi
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
diff --git a/test/TEST-03-USR-MOUNT/test.sh b/test/TEST-03-USR-MOUNT/test.sh
index 5943c5c60..cdf71838e 100755
--- a/test/TEST-03-USR-MOUNT/test.sh
+++ b/test/TEST-03-USR-MOUNT/test.sh
@@ -65,7 +65,7 @@ test_setup() {
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
                       mount dmesg dhclient mkdir cp ping dhclient \
-                      umount strace less setsid
+                      umount strace less setsid dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -85,7 +85,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.btrfs btrfs poweroff cp umount sync
+        inst_multiple sfdisk mkfs.btrfs btrfs poweroff cp umount sync dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -122,7 +122,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-04-FULL-SYSTEMD/create-root.sh b/test/TEST-04-FULL-SYSTEMD/create-root.sh
index a9f5ac522..d89c64943 100755
--- a/test/TEST-04-FULL-SYSTEMD/create-root.sh
+++ b/test/TEST-04-FULL-SYSTEMD/create-root.sh
@@ -38,7 +38,7 @@ btrfs filesystem sync /root/usr
 btrfs filesystem sync /root
 umount /root/usr
 umount /root
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 sync
 poweroff -f
 
diff --git a/test/TEST-04-FULL-SYSTEMD/test-init.sh b/test/TEST-04-FULL-SYSTEMD/test-init.sh
index e40f5e6f3..687522b90 100755
--- a/test/TEST-04-FULL-SYSTEMD/test-init.sh
+++ b/test/TEST-04-FULL-SYSTEMD/test-init.sh
@@ -111,7 +111,7 @@ ismounted() {
 systemctl --failed --no-legend --no-pager > /failed
 
 if ismounted /usr && [ ! -s /failed ]; then
-    echo "dracut-root-block-success" >/dev/sdc
+    echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdc
 fi
 
 if ! ismounted /usr; then
diff --git a/test/TEST-04-FULL-SYSTEMD/test.sh b/test/TEST-04-FULL-SYSTEMD/test.sh
index 4114070a3..a7b996000 100755
--- a/test/TEST-04-FULL-SYSTEMD/test.sh
+++ b/test/TEST-04-FULL-SYSTEMD/test.sh
@@ -69,7 +69,7 @@ test_setup() {
         ln -sfn /run/lock "$initdir/var/lock"
 
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping \
+                      mount dmesg mkdir cp ping dd \
                       umount strace less setsid tree systemctl reset
 
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
@@ -227,7 +227,7 @@ EOF
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.btrfs btrfs poweroff cp umount sync
+        inst_multiple sfdisk mkfs.btrfs btrfs poweroff cp umount sync dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -260,7 +260,7 @@ EOF
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-10-RAID/create-root.sh b/test/TEST-10-RAID/create-root.sh
index af4cac0d9..e7bb3ef9e 100755
--- a/test/TEST-10-RAID/create-root.sh
+++ b/test/TEST-10-RAID/create-root.sh
@@ -36,5 +36,5 @@ udevadm settle
 cryptsetup luksClose /dev/mapper/dracut_crypt_test
 udevadm settle
 eval $(udevadm info --query=env --name=/dev/md0|while read line || [ -n "$line" ]; do [ "$line" != "${line#*ID_FS_UUID*}" ] && echo $line; done;)
-{ echo "dracut-root-block-created"; echo "ID_FS_UUID=$ID_FS_UUID"; } >/dev/sda1
+{ echo "dracut-root-block-created"; echo "ID_FS_UUID=$ID_FS_UUID"; } | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
diff --git a/test/TEST-10-RAID/test-init.sh b/test/TEST-10-RAID/test-init.sh
index 5ca9de15b..1d9c9a886 100755
--- a/test/TEST-10-RAID/test-init.sh
+++ b/test/TEST-10-RAID/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 command -v plymouth >/dev/null && plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda1
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-10-RAID/test.sh b/test/TEST-10-RAID/test.sh
index fd92606b4..981c1b9d4 100755
--- a/test/TEST-10-RAID/test.sh
+++ b/test/TEST-10-RAID/test.sh
@@ -35,7 +35,7 @@ test_setup() {
             done
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -55,7 +55,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mke2fs poweroff cp umount
+        inst_multiple sfdisk mke2fs poweroff cp umount dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -82,7 +82,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst ./cryptroot-ask.sh /sbin/cryptroot-ask
diff --git a/test/TEST-11-LVM/create-root.sh b/test/TEST-11-LVM/create-root.sh
index 5d7443fd2..7fbef295e 100755
--- a/test/TEST-11-LVM/create-root.sh
+++ b/test/TEST-11-LVM/create-root.sh
@@ -27,5 +27,5 @@ umount /sysroot && \
 sleep 1 && \
 lvm lvchange -a n /dev/dracut/root && \
 sleep 1 && \
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
diff --git a/test/TEST-11-LVM/test-init.sh b/test/TEST-11-LVM/test-init.sh
index 00d9da777..975bfece3 100755
--- a/test/TEST-11-LVM/test-init.sh
+++ b/test/TEST-11-LVM/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda1
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-11-LVM/test.sh b/test/TEST-11-LVM/test.sh
index 95463e4b8..c718ad57d 100755
--- a/test/TEST-11-LVM/test.sh
+++ b/test/TEST-11-LVM/test.sh
@@ -33,7 +33,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -53,7 +53,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mke2fs poweroff cp umount
+        inst_multiple sfdisk mke2fs poweroff cp umount dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -76,7 +76,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-12-RAID-DEG/create-root.sh b/test/TEST-12-RAID-DEG/create-root.sh
index df4f619da..31be41d14 100755
--- a/test/TEST-12-RAID-DEG/create-root.sh
+++ b/test/TEST-12-RAID-DEG/create-root.sh
@@ -45,4 +45,4 @@ mdadm -W /dev/md0 || :
 mdadm --detail --export /dev/md0 |grep -F MD_UUID > /tmp/mduuid
 . /tmp/mduuid
 eval $(udevadm info --query=env --name=/dev/md0|while read line || [ -n "$line" ]; do [ "$line" != "${line#*ID_FS_UUID*}" ] && echo $line; done;)
-{ echo "dracut-root-block-created"; echo MD_UUID=$MD_UUID;  echo "ID_FS_UUID=$ID_FS_UUID";} > /dev/sda1
+{ echo "dracut-root-block-created"; echo MD_UUID=$MD_UUID;  echo "ID_FS_UUID=$ID_FS_UUID";} | dd oflag=direct,dsync of=/dev/sda1
diff --git a/test/TEST-12-RAID-DEG/test-init.sh b/test/TEST-12-RAID-DEG/test-init.sh
index 5ca9de15b..1d9c9a886 100755
--- a/test/TEST-12-RAID-DEG/test-init.sh
+++ b/test/TEST-12-RAID-DEG/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 command -v plymouth >/dev/null && plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda1
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-12-RAID-DEG/test.sh b/test/TEST-12-RAID-DEG/test.sh
index d6b29ddec..2f3d72a8a 100755
--- a/test/TEST-12-RAID-DEG/test.sh
+++ b/test/TEST-12-RAID-DEG/test.sh
@@ -75,7 +75,7 @@ test_setup() {
             done
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -126,7 +126,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-13-ENC-RAID-LVM/create-root.sh b/test/TEST-13-ENC-RAID-LVM/create-root.sh
index 13e65838d..437f0fb29 100755
--- a/test/TEST-13-ENC-RAID-LVM/create-root.sh
+++ b/test/TEST-13-ENC-RAID-LVM/create-root.sh
@@ -51,5 +51,5 @@ cryptsetup luksClose /dev/mapper/dracut_sda4 && \
     for i in /dev/sda[234]; do
 	udevadm info --query=env --name=$i|grep -F 'ID_FS_UUID='
     done
-} >/dev/sda1
+} | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
diff --git a/test/TEST-13-ENC-RAID-LVM/test-init.sh b/test/TEST-13-ENC-RAID-LVM/test-init.sh
index 6b86561fb..07d245a73 100755
--- a/test/TEST-13-ENC-RAID-LVM/test-init.sh
+++ b/test/TEST-13-ENC-RAID-LVM/test-init.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sdb
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdb
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/fstab ] || ln -s /proc/mounts /etc/fstab
diff --git a/test/TEST-13-ENC-RAID-LVM/test.sh b/test/TEST-13-ENC-RAID-LVM/test.sh
index 1f311be52..580ade85e 100755
--- a/test/TEST-13-ENC-RAID-LVM/test.sh
+++ b/test/TEST-13-ENC-RAID-LVM/test.sh
@@ -67,7 +67,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -86,7 +86,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mke2fs poweroff cp umount grep
+        inst_multiple sfdisk mke2fs poweroff cp umount grep dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
@@ -116,7 +116,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-14-IMSM/create-root.sh b/test/TEST-14-IMSM/create-root.sh
index 0d10945b1..9b6517fb8 100755
--- a/test/TEST-14-IMSM/create-root.sh
+++ b/test/TEST-14-IMSM/create-root.sh
@@ -73,5 +73,5 @@ udevadm settle
 mdadm --detail --export /dev/md0 |grep -F MD_UUID > /tmp/mduuid
 . /tmp/mduuid
 echo "MD_UUID=$MD_UUID"
-{ echo "dracut-root-block-created"; echo MD_UUID=$MD_UUID;} > /dev/sda
+{ echo "dracut-root-block-created"; echo MD_UUID=$MD_UUID;} | dd oflag=direct,dsync of=/dev/sda
 mdadm --wait-clean /dev/md0
diff --git a/test/TEST-14-IMSM/test-init.sh b/test/TEST-14-IMSM/test-init.sh
index 01cbe961e..d82657ad2 100755
--- a/test/TEST-14-IMSM/test-init.sh
+++ b/test/TEST-14-IMSM/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 cat /proc/mdstat
diff --git a/test/TEST-14-IMSM/test.sh b/test/TEST-14-IMSM/test.sh
index 75ea587f8..51c26e817 100755
--- a/test/TEST-14-IMSM/test.sh
+++ b/test/TEST-14-IMSM/test.sh
@@ -67,7 +67,7 @@ test_setup() {
             done
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -87,7 +87,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mke2fs poweroff cp umount grep
+        inst_multiple sfdisk mke2fs poweroff cp umount grep dd
         inst_hook initqueue 01 ./create-root.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
     )
diff --git a/test/TEST-15-BTRFSRAID/create-root.sh b/test/TEST-15-BTRFSRAID/create-root.sh
index e95e57da8..4d0bf2eb2 100755
--- a/test/TEST-15-BTRFSRAID/create-root.sh
+++ b/test/TEST-15-BTRFSRAID/create-root.sh
@@ -23,5 +23,5 @@ mkdir -p /sysroot
 mount -t btrfs /dev/sda5 /sysroot
 cp -a -t /sysroot /source/*
 umount /sysroot
-echo "dracut-root-block-created" >/dev/sda1
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
diff --git a/test/TEST-15-BTRFSRAID/test-init.sh b/test/TEST-15-BTRFSRAID/test-init.sh
index ed66a2b35..563287277 100755
--- a/test/TEST-15-BTRFSRAID/test-init.sh
+++ b/test/TEST-15-BTRFSRAID/test-init.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda
 sync
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
diff --git a/test/TEST-15-BTRFSRAID/test.sh b/test/TEST-15-BTRFSRAID/test.sh
index 873b779a7..435e52be2 100755
--- a/test/TEST-15-BTRFSRAID/test.sh
+++ b/test/TEST-15-BTRFSRAID/test.sh
@@ -38,7 +38,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient sync
+                      mount dmesg dhclient mkdir cp ping dhclient sync dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -57,7 +57,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.btrfs poweroff cp umount
+        inst_multiple sfdisk mkfs.btrfs poweroff cp umount dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-16-DMSQUASH/test-init.sh b/test/TEST-16-DMSQUASH/test-init.sh
index 3a93c8023..4a9c814b8 100755
--- a/test/TEST-16-DMSQUASH/test-init.sh
+++ b/test/TEST-16-DMSQUASH/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sdb
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdb
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-16-DMSQUASH/test.sh b/test/TEST-16-DMSQUASH/test.sh
index 37a963e2b..def97e271 100755
--- a/test/TEST-16-DMSQUASH/test.sh
+++ b/test/TEST-16-DMSQUASH/test.sh
@@ -73,7 +73,7 @@ test_setup() {
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
                       mount dmesg dhclient mkdir cp ping dhclient \
-                      umount strace less
+                      umount strace less dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [[ -f ${_terminfodir}/l/linux ]] && break
         done
diff --git a/test/TEST-17-LVM-THIN/create-root.sh b/test/TEST-17-LVM-THIN/create-root.sh
index 6e09012e2..01f0a1191 100755
--- a/test/TEST-17-LVM-THIN/create-root.sh
+++ b/test/TEST-17-LVM-THIN/create-root.sh
@@ -29,5 +29,5 @@ sleep 1 && \
 lvm lvchange -a n /dev/dracut/root && \
 sleep 1
 dmsetup status |grep out_of_data_space || \
-    echo "dracut-root-block-created" >/dev/sda1
+    echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sda1
 poweroff -f
diff --git a/test/TEST-17-LVM-THIN/test-init.sh b/test/TEST-17-LVM-THIN/test-init.sh
index cb9d921d6..ef867ab92 100755
--- a/test/TEST-17-LVM-THIN/test-init.sh
+++ b/test/TEST-17-LVM-THIN/test-init.sh
@@ -99,7 +99,7 @@ strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line || [ -n "$line" ]; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
-echo "dracut-root-block-success" >/dev/sda1
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sda1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 [ -f /etc/mtab ] || ln -sfn /proc/mounts /etc/mtab
diff --git a/test/TEST-17-LVM-THIN/test.sh b/test/TEST-17-LVM-THIN/test.sh
index fb7b817c3..e4755f788 100755
--- a/test/TEST-17-LVM-THIN/test.sh
+++ b/test/TEST-17-LVM-THIN/test.sh
@@ -33,7 +33,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg dhclient mkdir cp ping dhclient
+                      mount dmesg dhclient mkdir cp ping dhclient dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -53,7 +53,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mke2fs poweroff cp umount grep dmsetup
+        inst_multiple sfdisk mke2fs poweroff cp umount grep dmsetup dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-20-NFS/client-init.sh b/test/TEST-20-NFS/client-init.sh
index 55762d1ee..127555a99 100755
--- a/test/TEST-20-NFS/client-init.sh
+++ b/test/TEST-20-NFS/client-init.sh
@@ -112,7 +112,7 @@ echo "made it to the rootfs! Powering down."
 
 while read dev fs fstype opts rest || [ -n "$dev" ]; do
     [ "$fstype" != "nfs" -a "$fstype" != "nfs4" ] && continue
-    echo "nfs-OK $dev $fstype $opts" > /dev/sda
+    echo "nfs-OK $dev $fstype $opts" | dd oflag=direct,dsync of=/dev/sda
     break
 done < /proc/mounts
 >/dev/watchdog
diff --git a/test/TEST-20-NFS/test.sh b/test/TEST-20-NFS/test.sh
index 27c90d5e8..9d5493c72 100755
--- a/test/TEST-20-NFS/test.sh
+++ b/test/TEST-20-NFS/test.sh
@@ -305,7 +305,7 @@ test_setup() {
         export initdir=$TESTDIR/mnt/nfs/client
         . $basedir/dracut-init.sh
 
-        inst_multiple sh shutdown poweroff stty cat ps ln ip \
+        inst_multiple sh shutdown poweroff stty cat ps ln ip dd \
                       mount dmesg mkdir cp ping grep setsid ls vi /etc/virc less cat
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
diff --git a/test/TEST-30-ISCSI/client-init.sh b/test/TEST-30-ISCSI/client-init.sh
index 7a5b7546d..a659f148e 100755
--- a/test/TEST-30-ISCSI/client-init.sh
+++ b/test/TEST-30-ISCSI/client-init.sh
@@ -104,7 +104,7 @@ stty sane
 echo "made it to the rootfs! Powering down."
 while read dev fs fstype opts rest || [ -n "$dev" ]; do
     [ "$fstype" != "ext3" ] && continue
-    echo "iscsi-OK $dev $fstype $opts" > /dev/sda
+    echo "iscsi-OK $dev $fstype $opts" | dd oflag=direct,dsync of=/dev/sda
     break
 done < /proc/mounts
 #sh -i
diff --git a/test/TEST-30-ISCSI/create-root.sh b/test/TEST-30-ISCSI/create-root.sh
index 5f4b32a2c..d44c35762 100755
--- a/test/TEST-30-ISCSI/create-root.sh
+++ b/test/TEST-30-ISCSI/create-root.sh
@@ -21,5 +21,5 @@ mount /dev/dracut/root /sysroot && \
 cp -a -t /sysroot /source/* && \
 umount /sysroot && \
 lvm lvchange -a n /dev/dracut/root && \
-echo "dracut-root-block-created" >/dev/sdb
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sdb
 poweroff -f
diff --git a/test/TEST-30-ISCSI/test.sh b/test/TEST-30-ISCSI/test.sh
index 8c7e94527..a8aee2211 100755
--- a/test/TEST-30-ISCSI/test.sh
+++ b/test/TEST-30-ISCSI/test.sh
@@ -149,7 +149,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping grep setsid
+                      mount dmesg mkdir cp ping grep setsid dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -164,7 +164,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.ext3 poweroff cp umount setsid
+        inst_multiple sfdisk mkfs.ext3 poweroff cp umount setsid dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-35-ISCSI-MULTI/client-init.sh b/test/TEST-35-ISCSI-MULTI/client-init.sh
index 7a5b7546d..a659f148e 100755
--- a/test/TEST-35-ISCSI-MULTI/client-init.sh
+++ b/test/TEST-35-ISCSI-MULTI/client-init.sh
@@ -104,7 +104,7 @@ stty sane
 echo "made it to the rootfs! Powering down."
 while read dev fs fstype opts rest || [ -n "$dev" ]; do
     [ "$fstype" != "ext3" ] && continue
-    echo "iscsi-OK $dev $fstype $opts" > /dev/sda
+    echo "iscsi-OK $dev $fstype $opts" | dd oflag=direct,dsync of=/dev/sda
     break
 done < /proc/mounts
 #sh -i
diff --git a/test/TEST-35-ISCSI-MULTI/create-root.sh b/test/TEST-35-ISCSI-MULTI/create-root.sh
index 5f4b32a2c..d44c35762 100755
--- a/test/TEST-35-ISCSI-MULTI/create-root.sh
+++ b/test/TEST-35-ISCSI-MULTI/create-root.sh
@@ -21,5 +21,5 @@ mount /dev/dracut/root /sysroot && \
 cp -a -t /sysroot /source/* && \
 umount /sysroot && \
 lvm lvchange -a n /dev/dracut/root && \
-echo "dracut-root-block-created" >/dev/sdb
+echo "dracut-root-block-created" | dd oflag=direct,dsync of=/dev/sdb
 poweroff -f
diff --git a/test/TEST-35-ISCSI-MULTI/test.sh b/test/TEST-35-ISCSI-MULTI/test.sh
index 0c40e55c7..e96c9c566 100755
--- a/test/TEST-35-ISCSI-MULTI/test.sh
+++ b/test/TEST-35-ISCSI-MULTI/test.sh
@@ -164,7 +164,7 @@ test_setup() {
             mkdir -p -- var/lib/nfs/rpc_pipefs
         )
         inst_multiple sh shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping grep setsid
+                      mount dmesg mkdir cp ping grep setsid dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -179,7 +179,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple sfdisk mkfs.ext3 poweroff cp umount setsid
+        inst_multiple sfdisk mkfs.ext3 poweroff cp umount setsid dd
         inst_hook initqueue 01 ./create-root.sh
         inst_hook initqueue/finished 01 ./finished-false.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
diff --git a/test/TEST-40-NBD/client-init.sh b/test/TEST-40-NBD/client-init.sh
index 2b42e21b5..6292501ab 100755
--- a/test/TEST-40-NBD/client-init.sh
+++ b/test/TEST-40-NBD/client-init.sh
@@ -5,7 +5,7 @@ exec >/dev/console 2>&1
 while read dev fs fstype opts rest || [ -n "$dev" ]; do
     [ "$dev" = "rootfs" ] && continue
     [ "$fs" != "/" ] && continue
-    echo "nbd-OK $fstype $opts" >/dev/sda
+    echo "nbd-OK $fstype $opts" | dd oflag=direct,dsync of=/dev/sda
     echo "nbd-OK $fstype $opts" 
     break
 done < /proc/mounts
diff --git a/test/TEST-40-NBD/create-root.sh b/test/TEST-40-NBD/create-root.sh
index 20d0effd9..c57bf7f4f 100755
--- a/test/TEST-40-NBD/create-root.sh
+++ b/test/TEST-40-NBD/create-root.sh
@@ -26,5 +26,5 @@ cryptsetup luksClose /dev/mapper/dracut_crypt_test
 udevadm settle
 sleep 1
 eval $(udevadm info --query=env --name=/dev/sdb|while read line || [ -n "$line" ]; do [ "$line" != "${line#*ID_FS_UUID*}" ] && echo $line; done;)
-{ echo "dracut-root-block-created"; echo "ID_FS_UUID=$ID_FS_UUID"; } >/dev/sda
+{ echo "dracut-root-block-created"; echo "ID_FS_UUID=$ID_FS_UUID"; } | dd oflag=direct,dsync of=/dev/sda
 poweroff -f
diff --git a/test/TEST-40-NBD/test.sh b/test/TEST-40-NBD/test.sh
index 75820cbb7..f06c36c3e 100755
--- a/test/TEST-40-NBD/test.sh
+++ b/test/TEST-40-NBD/test.sh
@@ -227,7 +227,7 @@ make_encrypted_root() {
             ln -s ../run var/run
         )
         inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping
+                      mount dmesg mkdir cp ping dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -251,7 +251,7 @@ make_encrypted_root() {
             done
             ln -s ../run var/run
         )
-        inst_multiple mke2fs poweroff cp umount tune2fs
+        inst_multiple mke2fs poweroff cp umount tune2fs dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_hook emergency 000 ./hard-off.sh
         inst_hook initqueue 01 ./create-root.sh
@@ -302,7 +302,7 @@ make_client_root() {
             ln -s ../run var/run
         )
         inst_multiple sh ls shutdown poweroff stty cat ps ln ip \
-                      dmesg mkdir cp ping
+                      dmesg mkdir cp ping dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [ -f ${_terminfodir}/l/linux ] && break
         done
@@ -390,7 +390,7 @@ test_setup() {
     (
         export initdir=$TESTDIR/overlay
         . $basedir/dracut-init.sh
-        inst_multiple poweroff shutdown
+        inst_multiple poweroff shutdown dd
         inst_hook shutdown-emergency 000 ./hard-off.sh
         inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
         inst ./cryptroot-ask.sh /sbin/cryptroot-ask
diff --git a/test/TEST-50-MULTINIC/client-init.sh b/test/TEST-50-MULTINIC/client-init.sh
index 518f00fcb..38879049c 100755
--- a/test/TEST-50-MULTINIC/client-init.sh
+++ b/test/TEST-50-MULTINIC/client-init.sh
@@ -124,7 +124,7 @@ done
 {
     echo "OK"
     echo "$IFACES"
-} > /dev/sda
+} | dd oflag=direct,dsync of=/dev/sda
 
 getargbool 0 rd.shell && sh -i
 poweroff -f
diff --git a/test/TEST-50-MULTINIC/test.sh b/test/TEST-50-MULTINIC/test.sh
index 14f6b6b76..b4326d5af 100755
--- a/test/TEST-50-MULTINIC/test.sh
+++ b/test/TEST-50-MULTINIC/test.sh
@@ -257,7 +257,7 @@ test_setup() {
             done
         )
         inst_multiple sh shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping grep ls
+                      mount dmesg mkdir cp ping grep ls dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [[ -f ${_terminfodir}/l/linux ]] && break
         done
diff --git a/test/TEST-60-BONDBRIDGEVLANIFCFG/client-init.sh b/test/TEST-60-BONDBRIDGEVLANIFCFG/client-init.sh
index 269355576..13cef7ffa 100755
--- a/test/TEST-60-BONDBRIDGEVLANIFCFG/client-init.sh
+++ b/test/TEST-60-BONDBRIDGEVLANIFCFG/client-init.sh
@@ -16,7 +16,7 @@ echo "made it to the rootfs! Powering down."
 	  grep -v 'UUID=' $i
     done
     echo EOF
-) > /dev/sda
+) | dd oflag=direct,dsync of=/dev/sda
 
 strstr "$CMDLINE" "rd.shell" && sh -i
 poweroff -f
diff --git a/test/TEST-60-BONDBRIDGEVLANIFCFG/test.sh b/test/TEST-60-BONDBRIDGEVLANIFCFG/test.sh
index 859b279e6..72826a5da 100755
--- a/test/TEST-60-BONDBRIDGEVLANIFCFG/test.sh
+++ b/test/TEST-60-BONDBRIDGEVLANIFCFG/test.sh
@@ -274,7 +274,7 @@ test_setup() {
         export initdir="$TESTDIR"/mnt/nfs/client
         . "$basedir"/dracut-init.sh
         inst_multiple sh shutdown poweroff stty cat ps ln ip \
-                      mount dmesg mkdir cp ping grep ls sort
+                      mount dmesg mkdir cp ping grep ls sort dd
         for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
             [[ -f ${_terminfodir}/l/linux ]] && break
         done
-- 
2.39.2