Installing Ubuntu Desktop 12.04 No Partitions Showing Up Remove RAID Data
I am trying out the new version of Ubuntu desktop on my workstation and during the install process I had a problem with the installer not able to create any partitions. It turns out the hard drive I was using came from a Dell server that was in a hardware RAID which caused the issue. If you are having the same problem try doing what I did to remove the RAID information.
To fix the problem with a hard drive with RAID information on it boot into the live cd and open up a terminal window from the dash.
Once you have a terminal window use the following commands to remove all evidence of a raid from the hard drive.
sudo dmraid -E -r /dev/sda sudo wipefs /dev/sda -a
These 2 commands will remove any trace of a hardware or software raid on the hard drive. Below are screenshots of the issue I was having.
When I was doing the install I got to this screen and could not proceed any further. The installer simply would not see any of the partitions on the hard drive.
I even started the live OS and used GParted to manually create the partitions, still I would get stuck at the same screen above. Also if you are looking for how to manually partition your hard drive for linux below is a good templet to follow.