[patch] add multipath at boot time in initramfs

full_multipath.patch (text/plain), 4.36 KB, created by David Ulrich on 2009-09-24 09:35:55 UTC

diff -ur genkernel.org/defaults/initrd.scripts genkernel/defaults/initrd.scripts
--- genkernel.org/defaults/initrd.scripts	2009-09-23 20:51:28.000000000 +0200
+++ genkernel/defaults/initrd.scripts	2009-09-24 11:16:09.000000000 +0200
@@ -618,6 +618,17 @@
 		fi
 	fi
 
+    
+   	if [ "${USE_MULTIPATH_NORMAL}" = '1' ] 
+   	then 
+            	good_msg "Scanning for multipath devices" 
+           	/sbin/multipath -v 0
+      		sleep 2
+            	good_msg "Activating multipath devices" 
+      		/sbin/dmsetup ls --target multipath --exec "/sbin/kpartx -a -v" 
+		#for MULTIPATH_VOLUMES in /dev/mapper/*; do kpartx -a $MULTIPATH_VOLUMES; done
+   	fi 
+
 	if [ "${USE_EVMS_NORMAL}" = '1' ]
 	then
 		if [ -e '/sbin/evms_activate' ]
diff -ur genkernel.org/defaults/linuxrc genkernel/defaults/linuxrc
--- genkernel.org/defaults/linuxrc	2009-09-23 20:51:28.000000000 +0200
+++ genkernel/defaults/linuxrc	2009-09-23 15:24:23.000000000 +0200
@@ -98,6 +98,10 @@
 			DMRAID_OPTS=`parse_opt "${x}"`
 			USE_DMRAID_NORMAL=1
 		;;
+      		domultipath) 
+         		good_msg "Booting with multipath activated." 
+         		USE_MULTIPATH_NORMAL=1 
+      		;; 
 		doevms)
 			USE_EVMS_NORMAL=1
 		;;
diff -ur genkernel.org/defaults/modules_load genkernel/defaults/modules_load
--- genkernel.org/defaults/modules_load	2009-09-23 20:51:28.000000000 +0200
+++ genkernel/defaults/modules_load	2009-09-23 15:23:23.000000000 +0200
@@ -6,6 +6,7 @@
 MODULES_EVMS="dm-mod dm-snapshot dm-mirror dm-bbr raid0 raid1 raid456 raid5 raid6 raid10"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr raid0 raid1 raid456 raid5 raid6 raid10"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac"
 
 # Hardware (IDE/SCSI/SATA)
 MODULES_PATA="pata_mpiix pata_pdc2027x pata_radisys pata_sil680 pata_rz1000 pata_efar pata_cmd64x pata_hpt366 pata_hpt37x pata_hpt3x3 pata_hpt3x2n pata_optidma pata_it821x pata_artop pata_oldpiix pata_cypress pata_platform pata_serverworks pata_legacy pata_ns87410 pata_ns87415 pata_pcmcia pata_isapnp pata_it8213 pata_ali pata_amd pata_opti pata_atiixp pata_triflex pata_pdc202xx_old pata_sc1200 pata_qdi pata_netcell pata_sis pata_hpt3x2n pata_marvell pata_jmicron pata_via pata_cs5520 pata_cs5530 pata_cs5535 pata_sl82c105 libata"
diff -ur genkernel.org/gen_configkernel.sh genkernel/gen_configkernel.sh
--- genkernel.org/gen_configkernel.sh	2009-09-23 20:51:28.000000000 +0200
+++ genkernel/gen_configkernel.sh	2009-09-23 15:28:54.000000000 +0200
@@ -100,6 +100,13 @@
 		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 	fi
 
+   	if isTrue ${CMD_MULTIPATH} 
+   	then 
+      		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g' 
+      		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_MULTIPATH is.*/CONFIG_DM_MULTIPATH=m/g' 
+      		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_MULTIPATH_RDAC is.*/CONFIG_DM_MULTIPATH_RDAC=m/g' 
+   	fi 
+
 	if isTrue ${SPLASH}
 	then
 		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_FB_SPLASH is.*/CONFIG_FB_SPLASH=y/g'
diff -ur genkernel.org/gen_initramfs.sh genkernel/gen_initramfs.sh
--- genkernel.org/gen_initramfs.sh	2009-09-23 20:51:28.000000000 +0200
+++ genkernel/gen_initramfs.sh	2009-09-24 11:09:04.000000000 +0200
@@ -135,9 +135,18 @@
 	mkdir -p "${TEMP}/initramfs-multipath-temp/etc/" 
 	mkdir -p "${TEMP}/initramfs-multipath-temp/sbin/"
 	mkdir -p "${TEMP}/initramfs-multipath-temp/lib/"
+	mkdir -p "${TEMP}/initramfs-multipath-temp/usr/"
+	mkdir -p "${TEMP}/initramfs-multipath-temp/usr/lib/"
 
 	# Copy files to /lib
-	for i in /lib/{ld-*,libc-*,libc.*,libdl-*,libdl.*,libsysfs*so*,libdevmapper*so*}
+	for i in /lib/{ld-*,libc-*,libc.*,libdl-*,libdl.*,libsysfs*so*,libdevmapper*so*,librt*so*,libpthread*so*}
+	do
+		cp -a "${i}" "${TEMP}/initramfs-multipath-temp/lib" \
+			|| gen_die "Could not copy file ${i} for MULTIPATH"
+	done
+
+	# Copy files to /usr/lib
+	for i in /usr/lib/libaio*so*
 	do
 		cp -a "${i}" "${TEMP}/initramfs-multipath-temp/lib" \
 			|| gen_die "Could not copy file ${i} for MULTIPATH"
@@ -165,7 +174,8 @@
 	then
 		cp /etc/scsi_id.config "${TEMP}/initramfs-multipath-temp/etc/" || gen_die 'could not copy scsi_id.config'
 	fi
-	cd "${TEMP/initramfs-multipath-temp/}"
+	cd "${TEMP}/initramfs-multipath-temp/"
+	ln -s lib lib64
 	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
 	rm -r "${TEMP}/initramfs-multipath-temp/"
 }