diff --git a/target/linux/x86/image/grub-iso.cfg b/target/linux/x86/image/grub-iso.cfg
index 4d5d697aba..3d47a95a4b 100644
--- a/target/linux/x86/image/grub-iso.cfg
+++ b/target/linux/x86/image/grub-iso.cfg
@@ -6,5 +6,5 @@ set timeout="@TIMEOUT@"
 set root='(cd)'
 
 menuentry "OpenWrt" {
-	linux /boot/vmlinuz @CMDLINE@ noinitrd reboot=bios
+	linux /boot/vmlinuz @CMDLINE@ noinitrd
 }
diff --git a/target/linux/x86/image/grub.cfg b/target/linux/x86/image/grub.cfg
index 4e55dcfa61..33b9d0b1aa 100644
--- a/target/linux/x86/image/grub.cfg
+++ b/target/linux/x86/image/grub.cfg
@@ -6,8 +6,8 @@ set timeout="@TIMEOUT@"
 set root='(hd0,msdos1)'
 
 menuentry "OpenWrt" {
-	linux /boot/vmlinuz @CMDLINE@ noinitrd reboot=bios
+	linux /boot/vmlinuz @CMDLINE@ noinitrd
 }
 menuentry "OpenWrt (failsafe)" {
-	linux /boot/vmlinuz failsafe=true @CMDLINE@ noinitrd reboot=bios
+	linux /boot/vmlinuz failsafe=true @CMDLINE@ noinitrd
 }