trying to access software raid0 in ubuntu.

[Art Baldini]

I have 2 500 G SATA hard drives that I had in a NAS.  They were set up in a
RAID0 using the NAS S/W.  It appears to have used Linux to create the RAID0.

The disks have 3 partitions,
fdisk -l shows...
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x079bacbe

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1           7       56227   fd  Linux raid
autodetect
/dev/sdb2               8       60769   488070765   fd  Linux raid
autodetect
/dev/sdb3           60770       60801      257040   82  Linux swap / Solaris

Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x32af16a3

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1           7       56227   fd  Linux raid
autodetect
/dev/sdc2               8       60769   488070765   fd  Linux raid
autodetect
/dev/sdc3           60770       60801      257040   82  Linux swap / Solaris


If I put the disks in a CentOS system the md shows up and I can access the
raid0 device.
When I put them in my ubuntu (9.10) system is sees the physical disks, and
the partitions but I cannot access the md.
The mdstat file shows:
    cat /proc/mdstat
    Personalities :
    unused devices: <none>
The GUI Disk Utility sees the disks, partitions, and lists that there is a
RAID device and it lists the sdb2, and sdc2 partitions.  I would prefer to
not have to back up all the data and rebuild the RAID, and I am fairly new
to Ubuntu so I dont know all the utilities.  I have seen mention of dmraid
in some forums, but when I run sudo dmraid -ay I get:"no raid disks"

thanks.
Art
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