Bug #286187: Complete multipath support.

Somewhere in the mists of time we lost part of the multipath patch, so
we were bundling the userspace, but not the kernel modules, or ever
using it.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

ChangeLog

@@ -5,6 +5,15 @@
 # Distributed under the GPL v2
 # $Id$
 
+  13 Oct 2012; Robin H. Johnson <robbat2@gentoo.org> arch/alpha/modules_load,
+  arch/arm/modules_load, arch/ia64/modules_load, arch/mips/modules_load,
+  arch/parisc/modules_load, arch/parisc64/modules_load, arch/ppc/modules_load,
+  arch/ppc64/modules_load, arch/sparc/modules_load, arch/sparc64/modules_load,
+  arch/um/modules_load, arch/x86/modules_load, arch/x86_64/modules_load,
+  defaults/initrd.scripts, defaults/linuxrc, defaults/modules_load,
+  gen_configkernel.sh, gen_initramfs.sh:
+  Bug #286187: Complete multipath support.
+
   13 Oct 2012; Robin H. Johnson <robbat2@gentoo.org> defaults/initrd.defaults,
   defaults/initrd.scripts, defaults/linuxrc, doc/genkernel.8.txt:
   Bug #351873: More livecd control, and initramfs livecd argument

arch/alpha/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/arm/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/ia64/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/mips/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/parisc/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/parisc64/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/ppc/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/ppc64/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/sparc/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/sparc64/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/um/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/x86/modules_load

@@ -6,6 +6,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror dm-crypt"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

arch/x86_64/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror dm-crypt"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-persistent-data libcrc32c dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

defaults/initrd.scripts

@@ -616,6 +616,16 @@ startVolumes() {
 		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_DMRAID_NORMAL}" = '1' ]
 	then
 		if [ -e '/sbin/dmraid' ]

defaults/linuxrc

@@ -101,6 +101,10 @@ do
 			DMRAID_OPTS=${x#*=}
 			USE_DMRAID_NORMAL=1
 		;;
+		domultipath) 
+			good_msg "Booting with multipath activated." 
+			USE_MULTIPATH_NORMAL=1 
+		;;
 		dozfs*)
 			USE_ZFS=1
 

defaults/modules_load

@@ -5,6 +5,7 @@ MODULES_ATARAID="ataraid pdcraid hptraid"
 MODULES_DMRAID="dm-mod dm-mirror"
 MODULES_LVM="dm-mod dm-snapshot dm-mirror dm-bbr dm-bufio dm-crypt dm-delay dm-flakey dm-log dm-log-userspace dm-multipath dm-queue-length dm-raid dm-region-hash dm-round-robin dm-service-time dm-thin-pool dm-zero"
 MODULES_MDADM="dm-mod dm-snapshot dm-mirror dm-bbr dm-raid dm-crypt raid0 raid1 raid456 raid5 raid6 raid10 linear multipath"
+MODULES_MULTIPATH="dm-mod dm-multipath dm-round-robin dm-rdac dm-queue-length dm-service-time"
 
 # 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"

doc/genkernel.8.txt

@@ -457,6 +457,9 @@ which the ramdisk scripts would recognize.
     Scan for bootable ZFS pools on bootup. Optionally force import if
     necessary.
 
+*domultipath*::
+    Activate Multipath on bootup
+
 *doscsi*::
     Activate SCSI devices on bootup, necessary when SCSI support is
     compiled as modules and you're using SCSI or SATA devices.

gen_configkernel.sh

@@ -117,6 +117,14 @@ config_kernel() {
 		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_DM_MIRROR is.*/CONFIG_DM_MIRROR=m/g'
 	fi
 
+	# Multipath
+	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 
+
 	# Make sure dmraid modules are on if --dmraid
 	if isTrue ${CMD_DMRAID}
 	then

gen_initramfs.sh

@@ -226,7 +226,10 @@ append_multipath(){
 	mkdir -p "${TEMP}"/initramfs-multipath-temp/{bin,etc,sbin,lib}/
 
 	# Copy files
-	copy_binaries "${TEMP}/initramfs-multipath-temp" /sbin/{multipath,kpartx,mpath_prio_*,devmap_name,dmsetup} /lib64/udev/scsi_id /bin/mountpoint
+	copy_binaries "${TEMP}/initramfs-multipath-temp" \
+		/bin/mountpoint \
+		/sbin/{multipath,kpartx,mpath_prio_*,devmap_name,dmsetup} \
+		/{lib,lib64}/{udev/scsi_id,multipath/*so} 
 
 	if [ -x /sbin/multipath ]
 	then