diff --git a/install.sh b/install.sh
index 1718ab9..58c140c 100755
--- a/install.sh
+++ b/install.sh
@@ -149,4 +149,5 @@ install_data misc_systemd_units/mxvlan.service            "$DESTDIR$systemdunitd
 mkdir -p "$DESTDIR$usr_prefix/share/applications"
 install_data applications-defaults/defaults.list          "$DESTDIR$usr_prefix/share/applications/defaults.list"
 install_data misc_etc_files/modprobe.d/nfs_slotlimit.conf "$DESTDIR$sysconfdir/modprobe.d/nfs_slotlimit.conf"
+install_data misc_systemd_units/crashkernel.service       "$DESTDIR$systemdunitdir/crashkernel.service"
 exit
diff --git a/misc_systemd_units/crashkernel.service b/misc_systemd_units/crashkernel.service
new file mode 100644
index 0000000..26695c0
--- /dev/null
+++ b/misc_systemd_units/crashkernel.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=load crashkernel
+ConditionPathExists=/boot/bzImage.crash
+
+[Service]
+StandardOutput=kmsg
+StandardError=kmsg
+Type=oneshot
+ExecStart=/usr/sbin/kexec -p /boot/bzImage.crash --initrd=/boot/grub/initramfs.igz --command-line="root=LABEL=root ro console=ttyS0,115200n8 console=ttyS1,115200n8 console=tty0 irqpoll maxcpus=1 reset_devices CRASH"
+ExecStop=/usr/sbin/kexec -p -u
+RemainAfterExit=yes
+
+[Install]
+WantedBy=basic.target
diff --git a/mxgrub/mxgrub b/mxgrub/mxgrub
index b0f81e1..d88b79c 100755
--- a/mxgrub/mxgrub
+++ b/mxgrub/mxgrub
@@ -239,6 +239,8 @@ sub scan_mariux {
 	}
 }
 
+our $KERNEL_PARAMETER="ro crashkernel=256M console=ttyS0,115200n8 console=ttyS1,115200n8 console=tty0 init=/bin/systemd audit=0";
+
 sub update_grub_cfg {
 	my $kernellist='';
 
@@ -246,7 +248,7 @@ sub update_grub_cfg {
 
 	for my $label (@MARIUX) {
 		my $image=label_to_image($label);
-		$kernellist.="\tmenuentry \"$label\" --unrestricted { save_env chosen ; linux /boot/$image crashkernel=256M root=LABEL=root ro console=ttyS1,115200n8 console=tty0 init=/bin/systemd audit=0 ; initrd /boot/grub/initramfs.igz }\n";
+		$kernellist.="\tmenuentry \"$label\" --unrestricted { save_env chosen ; linux /boot/$image crashkernel=256M root=LABEL=root ro console=ttyS0,115200n8 console=ttyS1,115200n8 console=tty0 init=/bin/systemd audit=0 ; initrd /boot/grub/initramfs.igz }\n";
 	}
 
 	my $GRUB_CFG_NEW=<<"EOF";
@@ -263,10 +265,10 @@ insmod all_video
 
 if [ -e /etc/local/USB.usb ]; then
 	set default="mariuxUSB"
-	menuentry "mariuxUSB" --unrestricted { save_env chosen ; linux /boot/bzImage.x86_64 crashkernel=256M root=LABEL=rootusb ro init=/bin/systemd audit=0 ; initrd /boot/grub/initramfs.igz }
+	menuentry "mariuxUSB" --unrestricted { save_env chosen ; linux /boot/bzImage.x86_64 root=LABEL=rootusb $KERNEL_PARAMETER ; initrd /boot/grub/initramfs.igz }
 else
 
-menuentry "$MARIUX_DEFAULT" --unrestricted { set chosen="$submenu>$MARIUX_DEFAULT" ; save_env chosen ; linux /boot/bzImage.x86_64 crashkernel=256M root=LABEL=root ro console=ttyS1,115200n8 console=tty0 init=/bin/systemd audit=0 ; initrd /boot/grub/initramfs.igz }
+menuentry "$MARIUX_DEFAULT" --unrestricted { set chosen="$submenu>$MARIUX_DEFAULT" ; save_env chosen ; linux /boot/bzImage.x86_64 root=LABEL=root $KERNEL_PARAMETER ; initrd /boot/grub/initramfs.igz }
 
 submenu "$submenu" --unrestricted {
 $kernellist
@@ -358,7 +360,7 @@ sub cmd_reboot {
 	my $image=label_to_image($chosen);
 	-e "/boot/$image" or die "/boot/$image: no such file\n";
 	sys('sync');
-	sys('kexec',"/boot/$image",'--reuse-cmdline','--initrd=/boot/grub/initramfs.igz');
+	sys('kexec',"/boot/$image",'--initrd=/boot/grub/initramfs.igz',"--command-line=root=LABEL=root $KERNEL_PARAMETER");
 }
 
 umask 022;