From 882472aeed84c5f779a7ab70d46b11e29ae8bab8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Elan=20Ruusam=C3=A4e?= <glen@pld-linux.org>
Date: Tue, 17 Jan 2006 22:11:27 +0000
Subject: [PATCH] - add dmraid support, needs udev as it creates nodes on /dev
 - probably udev support should be improved to copy config to initrd so the
 nodes correspond to ones configured in host   currently customised udev in
 host has no effect on initrd

svn-id: @6838
---
 geninitrd | 45 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/geninitrd b/geninitrd
index 8b26cca..d1e603a 100755
--- a/geninitrd
+++ b/geninitrd
@@ -48,6 +48,10 @@ if [ -f /etc/udev/udev.conf -a -x /sbin/initrd-udev ]; then
 	UDEV_TMPFS="yes"
 	. /etc/udev/udev.conf
 fi
+
+if [ -x /sbin/dmraid-initrd ]; then
+	USE_DMRAID="yes"
+fi
 			    
 usage () {
 	echo "usage: `basename $0` [--version] [-v] [-f] [--ifneeded] [--preload <module>]" 
@@ -55,7 +59,7 @@ usage () {
 	echo "       [--initrdfs=rom|ext2|cram] [--modules-conf=<modules.conf>]" 
 	echo "       [--with-raidstart] [--without-raidstart] [--with-insmod-static]" 
 	echo "       [--without-bootsplash] [--lvmtoolsversion=1|2] [--without-udev]"
-	echo "       [--without-suspend]"
+	echo "       [--without-suspend] [--without-dmraid]"
 	echo "       <initrd-image> <kernel-version>" 
 	echo "       (ex: `basename $0` /boot/initrd-2.2.5-15.img 2.2.5-15)" 
 	exit 1
@@ -764,6 +768,9 @@ while [ $# -gt 0 ]; do
 	--without-udev)
 		USE_UDEV=
 		;;
+	--without-dmraid)
+		USE_DMRAID=
+		;;
 	--with=*)
 		BASICMODULES="$BASICMODULES `echo $1 | awk -F= '{print $2;}'`"
 		;;
@@ -852,7 +859,8 @@ if [ "x" = "x$INITRDFS" ] ; then
 fi
 
 if [ "$pack_version" -lt "002006" ] ; then
-    	USE_UDEV=
+	USE_UDEV=
+	USE_DMRAID=
 fi
 [ -z "$USE_UDEV" ] && UDEV_TMPFS=
     
@@ -1082,7 +1090,7 @@ initrd_gen_udev() {
 
 	if is_yes "$USE_UDEV"; then
 		if is_yes "$UDEV_TMPFS"; then
-		    cat >> "$s" << EOF
+		    cat >> "$s" <<-EOF
 echo Creating /dev
 mount -o mode=0755 -t tmpfs none /dev
 mknod /dev/console c 5 1
@@ -1092,7 +1100,7 @@ mkdir /dev/pts
 mkdir /dev/shm
 EOF
 		fi
-		cat >> "$s" << EOF
+		cat >> "$s" <<-EOF
 mount -t proc none /proc
 echo Starting udev
 /sbin/udevstart
@@ -1102,6 +1110,31 @@ EOF
 	fi
 }
 
+initrd_gen_dmraid() {
+   if [ ! -x /sbin/dmraid-initrd ] ; then
+       echo "/sbin/dmraid-initrd is missing missing !"
+       exit 1
+   fi
+
+   if [ ! -x $MNTIMAGE/sbin/udev ]; then
+       echo "udev is needed on target initrd for dmraid to work!"
+       exit 1
+   fi
+
+   mkdir -p "$MNTIMAGE/sbin"
+   inst /sbin/dmraid-initrd $MNTIMAGE/sbin/dmraid
+cat <<-EOF >> "$s"
+	mount -t proc none /proc
+	mount -t sysfs none /sys
+	# 2 secs was enough for my system to initialize. but really this is udev issue?
+	usleep 2000000
+	/sbin/dmraid -ay -i
+	umount /sys
+	umount /proc
+EOF
+}
+
+
 initrd_gen_softraid() {
 	[ -n "$verbose" ] && echo "Setting up mdadm..."
 	
@@ -1279,6 +1312,10 @@ if is_yes "$USESUSPEND"; then
 	initrd_gen_suspend
 fi
 
+if is_yes "$USE_DMRAID"; then
+	initrd_gen_dmraid
+fi
+
 if is_yes "$usenfs" ; then
 	initrd_gen_nfs
 elif is_yes "$USERAIDSTART" && is_yes "$raidfound" ; then
-- 
2.44.0