Index: gen_cmdline.sh
===================================================================
--- gen_cmdline.sh	(revision 545)
+++ gen_cmdline.sh	(working copy)
@@ -81,6 +81,7 @@
   echo "				first"
   echo "	--lvm			Include LVM support"
   echo "	--lvm2			Include LVM support"
+  echo "	--mdadm			Copy /etc/mdadm.conf to initramfs"
   echo "	--dmraid		Include DMRAID support"
   echo "	--slowusb		Enables extra pauses for slow USB CD boots"
   echo "	--bootloader=grub	Add new kernel to GRUB configuration"
@@ -229,6 +230,10 @@
 			echo
 			print_warning 1 "Please use --lvm, as --lvm2 is deprecated."
 			;;
+		--mdadm)
+			CMD_MDADM=1
+			print_info 2 "CMD_MDADM: $CMD_MDADM"
+			;;
 		--no-busybox)
 			CMD_NO_BUSYBOX=1
 			print_info 2 "CMD_NO_BUSYBOX: ${CMD_NO_BUSYBOX}"
Index: x86/busy-config
===================================================================
--- x86/busy-config	(revision 545)
+++ x86/busy-config	(working copy)
@@ -376,6 +376,7 @@
 # CONFIG_IPCRM is not set
 # CONFIG_IPCS is not set
 CONFIG_LOSETUP=y
+CONFIG_MDADM=y
 CONFIG_MDEV=y
 # CONFIG_FEATURE_MDEV_CONF is not set
 CONFIG_MDSTART=y
Index: gen_determineargs.sh
===================================================================
--- gen_determineargs.sh	(revision 545)
+++ gen_determineargs.sh	(working copy)
@@ -412,6 +412,13 @@
 		DMRAID=0
 	fi
 	
+	if isTrue "${CMD_MDADM}"
+	then
+		MDADM=1
+	else
+		MDADM=0
+	fi
+
 	get_KV
 	UNIONFS_MODULES_BINCACHE=`kv_replace "${UNIONFS_MODULES_BINCACHE}"`
 }
Index: gen_initramfs.sh
===================================================================
--- gen_initramfs.sh	(revision 545)
+++ gen_initramfs.sh	(working copy)
@@ -226,6 +226,23 @@
 	rm -r "${TEMP}/initramfs-evms-temp/"
 }
 
+append_mdadm(){
+	if [ -d "${TEMP}/initramfs-mdadm-temp" ]
+	then
+		rm -r "${TEMP}/initramfs-mdadm-temp/"
+	fi
+	cd ${TEMP}
+	mkdir -p "${TEMP}/initramfs-mdadm-temp/etc/"
+	if [ "${MDADM}" -eq '1' ]
+		cp -a /etc/mdadm.conf "${TEMP}/initramfs-udev-temp/etc" \
+			|| gen_die "Could not copy mdadm.conf!"; }
+	then
+	fi
+	cd "${TEMP}/initramfs-mdadm-temp/"
+	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
+	rm -rf "${TEMP}/initramfs-mdadm-temp" > /dev/null
+}
+
 append_splash(){
 	if [ -x /usr/bin/splash_geninitramfs ] || [ -x /sbin/splash_geninitramfs ]
 	then
@@ -437,6 +454,7 @@
 	append_data 'lvm' "${LVM}"
 	append_data 'dmraid' "${DMRAID}"
 	append_data 'evms' "${EVMS}"
+	append_data 'mdadm' "${MDADM}"
 	
 	if [ "${NOINITRDMODULES}" = '' ]
 	then
Index: generic/initrd.scripts
===================================================================
--- generic/initrd.scripts	(revision 545)
+++ generic/initrd.scripts	(working copy)
@@ -602,6 +602,15 @@
 		ln -sf /dev/device-mapper /dev/mapper/control
 	fi
 	
+	if [ "${USE_MDADM}" -eq '1' ]
+	then
+		if [ ! -e '/etc/mdadm.conf' ]
+		then
+			/sbin/mdadm --examine > /etc/mdadm.conf
+		fi
+		/sbin/mdadm --assemble
+	fi
+
 	if [ "${USE_DMRAID_NORMAL}" -eq '1' ]
 	then
 		if [ -e '/sbin/dmraid' ]
Index: generic/linuxrc
===================================================================
--- generic/linuxrc	(revision 545)
+++ generic/linuxrc	(working copy)
@@ -108,6 +108,9 @@
 		dolvm)
 			USE_LVM_NORMAL=1
 		;;
+		domdadm)
+			USE_MDADM=1
+		;;
 		dodmraid)
 			USE_DMRAID_NORMAL=1
 		;;