diff -ur /usr/share/genkernel/gen_cmdline.sh ./gen_cmdline.sh
--- /usr/share/genkernel/gen_cmdline.sh	2007-04-12 12:44:47.000000000 +0100
+++ ./gen_cmdline.sh	2007-10-03 17:17:58.978942739 +0100
@@ -77,6 +77,7 @@
   echo "				--> 'emerge evms' in the host operating system"
   echo "				first"
   echo "	--lvm2			Include LVM2 support"
+  echo "	--mdadm			Copy /etc/mdadm.conf to initramfs"
 #  echo "	--unionfs		Include UNIONFS support"
   echo "	--dmraid		Include DMRAID support"
   echo "	--suspend		Include userspace suspend/resume (uswsusp) support"
@@ -227,6 +228,10 @@
 		      print_warning 1 "This code is subject to change at any time."
 		      echo
 	      ;;
+	      --mdadm)
+		      CMD_MDADM=1
+		      print_info 2 "CMD_MDADM: $CMD_MDADM"
+	      ;;
 	      --lvm2)
 		      CMD_LVM2=1
 		      print_info 2 "CMD_LVM2: $CMD_LVM2"
diff -ur /usr/share/genkernel/gen_determineargs.sh ./gen_determineargs.sh
--- /usr/share/genkernel/gen_determineargs.sh	2007-04-12 12:44:47.000000000 +0100
+++ ./gen_determineargs.sh	2007-10-03 17:17:58.979942825 +0100
@@ -465,6 +465,13 @@
 		DMRAID=0
 	fi
 	
+	if isTrue "${CMD_MDADM}"
+	then
+		MDADM=1
+	else
+		MDADM=0
+	fi
+
 	get_KV
 	UNIONFS_MODULES_BINCACHE=`kv_replace "${UNIONFS_MODULES_BINCACHE}"`
 }
diff -ur /usr/share/genkernel/gen_initramfs.sh ./gen_initramfs.sh
--- /usr/share/genkernel/gen_initramfs.sh	2007-04-12 12:44:48.000000000 +0100
+++ ./gen_initramfs.sh	2007-10-03 17:17:58.979942825 +0100
@@ -289,6 +289,20 @@
 	rm -r "${TEMP}/initramfs-evms2-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/"
+	[ "${MDADM}" -eq '1' ] && { /bin/cp -f /etc/mdadm.conf "${TEMP}/initramfs-udev-temp/etc" ||
+		gen_die "Could not copy mdadm.conf!"; }
+	cd "${TEMP}/initramfs-mdadm-temp/"
+	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
+	rm -rf "${TEMP}/initramfs-mdadm-temp" > /dev/null
+}
+
 append_gensplash(){
 	if [ -x /usr/bin/splash_geninitramfs ] || [ -x /sbin/splash_geninitramfs ]
 	then
@@ -500,6 +514,7 @@
 	append_data 'lvm2' "${LVM2}"
 	append_data 'dmraid' "${DMRAID}"
 	append_data 'evms2' "${EVMS2}"
+	append_data 'mdadm' "${MDADM}"
 	
 	if [ "${NOINITRDMODULES}" = '' ]
 	then
diff -ur /usr/share/genkernel/generic/initrd.scripts ./generic/initrd.scripts
--- /usr/share/genkernel/generic/initrd.scripts	2007-04-12 12:44:48.000000000 +0100
+++ ./generic/initrd.scripts	2007-10-03 17:17:58.980942911 +0100
@@ -557,6 +557,15 @@
 		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' ]
diff -ur /usr/share/genkernel/generic/linuxrc ./generic/linuxrc
--- /usr/share/genkernel/generic/linuxrc	2007-04-12 12:44:48.000000000 +0100
+++ ./generic/linuxrc	2007-10-03 17:17:58.980942911 +0100
@@ -119,6 +119,9 @@
 		dolvm2)
 			USE_LVM2_NORMAL=1
 		;;
+		domdadm)
+			USE_MDADM=1
+		;;
 		dodmraid)
 			USE_DMRAID_NORMAL=1
 		;;
Only in /usr/share/genkernel/pkg: busybox-1.1.3+gentoo.tar.bz2
diff -ur /usr/share/genkernel/x86/busy-config ./x86/busy-config
--- /usr/share/genkernel/x86/busy-config	2007-04-12 12:44:46.000000000 +0100
+++ ./x86/busy-config	2007-10-03 17:17:59.661001198 +0100
@@ -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