wrong fs type when trying to mount after a reboot

[MAHMOUD HANAFI <hanafim@asc.hpc.mil>]

I am running 2.6.9-22.ELsmp kernel with device-mapper-multipath-0.4.5-6.0.RHEL4. I have multipath 
configure and working. My HBA's are Emulex LP11000.

[root@io1 device-mapper-multipath-0.4.5]# ls -l  /dev/mpath/*
lrwxrwxrwx  1 root root 7 May 31 17:21 /dev/mpath/2000b080009001474 -> ../dm-0
lrwxrwxrwx  1 root root 7 May 31 17:21 /dev/mpath/2000b08000b001474 -> ../dm-1
[root@io1 device-mapper-multipath-0.4.5]# lvmdiskscan
   /dev/hda                     [      238.12 MB]
   /dev/mpath/2000b080009001474 [        1.22 TB] LVM physical volume
   /dev/sda1                    [       62.72 MB]
   /dev/mpath/2000b08000b001474 [      150.73 GB] LVM physical volume
   /dev/sda2                    [      509.88 MB]
   /dev/io1_vg1/io1_lv1         [        1.22 TB] LVM physical volume
   /dev/sda3                    [        7.81 GB]
   /dev/root                    [        7.81 GB]
   /dev/sda6                    [       52.05 GB]
   2 disks
   4 partitions
   0 LVM physical volume whole disks
   3 LVM physical volumes

I can create an ext3 filesystem on /dev/dm-1 and mount it. But if I reboot the node and try mounting 
the filesystem I get the following error:

[root@io1 device-mapper-multipath-0.4.5]# mount -t ext3 /dev/dm-1 /nfswork/
mount: wrong fs type, bad option, bad superblock on /dev/dm-1,
        or too many mounted file systems


----- /etc/multipath.conf ----
defaults {
         multipath_tool  "/sbin/multipath -v0"
         udev_dir        /dev
         polling_interval 10
         default_selector        "round-robin 0"
         default_path_grouping_policy    multibus
         default_getuid_callout  "/sbin/scsi_id -g -u -s /block/%n"
         default_prio_callout    "/bin/true"
         default_features        "0"
         rr_wmin_io              100
         failback                immediate
}
devnode_blacklist {

         devnode "^(sda|hda)[0-9]*"

}
-----------------------------------------------

-Mahmoud