Hello,

I was trying to install ubuntu 12.04 on a dell optiplex 990 (I think) that
is using a intel fake raid mirroring both drives. When it comes to the
installation the partitioner seems to be displaying /dev/mappper/raid_name
as well, as it seems, that it is also displaying the partitions on both
hard drives because the partitions are listed twice. Now I am not relying
on ubuntu, but I can use centos or even fedora for this matter.

-- 
Nadim Hoque
System Analyst (IT)
Engineering Technical Services
Cell: 480-518-6235