[CentOS] isw_xxxxxxxx missing?

Fri Nov 28 19:01:54 UTC 2008
Davide Cittaro <davide.cittaro at ifom-ieo-campus.it>

Hi all, I've installed CentOS 5.2 on a sun x2250.
The installer goes fine and I can setup my root with lvm on /dev/ 
mapper/isw_xxxxxxxx_Volume0, that is the hardware RAID1 for two disks  
available.
As the system boots lvm complains of a duplicate PV and decides to  
use /dev/sda, so the physical disk, not the raid device...  I see with  
surprise that the raid device is missing!
Needless to say, in a couple of days and reboots I've completely  
messed up the filesystem and the bootloader...
Is there a way to fix this?

d