diff --git a/xCAT-server/share/xcat/install/scripts/post.rhels7 b/xCAT-server/share/xcat/install/scripts/post.rhels7
index 193ef79d7..41d051191 100644
--- a/xCAT-server/share/xcat/install/scripts/post.rhels7
+++ b/xCAT-server/share/xcat/install/scripts/post.rhels7
@@ -30,4 +30,5 @@ if [ -f "/usr/lib/systemd/system/NetworkManager.service" ]; then
 fi
 GRUBOUT=$(find /boot -name grub.cfg)
 sed -i -e 's/GRUB.*TERMINAL=.*/GRUB_TERMINAL="console"/' -e 's/GRUB_SERIAL_COMMAND=.*//' /etc/sysconfig/grub
+sed -i -e 's/GRUB.*TERMINAL=.*/GRUB_TERMINAL="console"/' -e 's/GRUB_SERIAL_COMMAND=.*//' /etc/default/grub
 grub2-mkconfig -o $GRUBOUT