diff --git a/arch/x86_64/tools/mcreboot-smp-x86.sh.in b/arch/x86_64/tools/mcreboot-smp-x86.sh.in
index dd8eeafe..e955af4b 100644
--- a/arch/x86_64/tools/mcreboot-smp-x86.sh.in
+++ b/arch/x86_64/tools/mcreboot-smp-x86.sh.in
@@ -172,7 +172,7 @@ error_exit() {
 			if ! systemctl disable irqbalance_mck.service >/dev/null 2>/dev/null; then
 				echo "warning: failed to disable irqbalance_mck" >&2
 			fi
-			if ! etcdir=@ETCDIR@ perl -e '$etcdir=$ENV{'etcdir'}; @files = grep { -f } glob "$etcdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($etcdir)); if(0) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then
+			if ! perl -e '$tmpdir="/tmp/mcreboot"; @files = grep { -f } glob "$tmpdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($tmpdir)); if (1) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then
 				echo "warning: failed to restore /proc/irq/*/smp_affinity" >&2
 			fi
 			if ! systemctl start irqbalance.service; then
@@ -247,7 +247,7 @@ if [ "${irqbalance_used}" == "yes" ]; then
 		exit 1
     fi;
 
-    if ! etcdir=@ETCDIR@ perl -e 'use File::Copy qw(copy); $etcdir=$ENV{'etcdir'}; @files = grep { -f } glob "/proc/irq/*/smp_affinity"; foreach $file (@files) { $rel = substr($file, 1); $dir=substr($rel, 0, length($rel)-length("/smp_affinity")); if(0) { print "cp $file $etcdir/$rel\n";} if(system("mkdir -p $etcdir/$dir")){ exit 1;} if(!copy($file,"$etcdir/$rel")){ exit 1;} }'; then
+    if ! perl -e 'use File::Copy qw(copy); $tmpdir="/tmp/mcreboot"; @files = grep { -f } glob "/proc/irq/*/smp_affinity"; foreach $file (@files) { $rel = substr($file, 1); $dir = substr($rel, 0, length($rel) - length("/smp_affinity")); if (system("mkdir -p $tmpdir/$dir")) { exit 1; } if (0) { print "cp $file $tmpdir/$rel\n"; } if (!copy($file,"$tmpdir/$rel")) { exit 1; } }'; then
 		echo "error: saving /proc/irq/*/smp_affinity" >&2
 		error_exit "mcos_sys_mounted"
 	fi;
diff --git a/arch/x86_64/tools/mcstop+release-smp-x86.sh.in b/arch/x86_64/tools/mcstop+release-smp-x86.sh.in
index 09fd55c9..66cf41aa 100644
--- a/arch/x86_64/tools/mcstop+release-smp-x86.sh.in
+++ b/arch/x86_64/tools/mcstop+release-smp-x86.sh.in
@@ -119,7 +119,7 @@ fi
 
 # Start irqbalance with the original settings
 if [ "${irqbalance_used}" != "" ]; then
-	if ! etcdir=@ETCDIR@ perl -e '$etcdir=$ENV{'etcdir'}; @files = grep { -f } glob "$etcdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($etcdir)); if(0) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then
+	if ! perl -e '$tmpdir="/tmp/mcreboot"; @files = grep { -f } glob "$tmpdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($tmpdir)); if (0) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then
 		echo "warning: failed to restore /proc/irq/*/smp_affinity" >&2
 	fi
 	if ! systemctl start irqbalance.service; then