linux installer fails to see a sda1 after the drive was used in a raid

Stump the installer. Last week we had another challenging install at the local installfest in that most installer programs would not see the HDD sda. server did work but no desktop versions. after going home I found this link http://ubuntuforums.org/showthread.php?t=2003675 checked and verified and even and format and new partition tables the drive still thought it was part of the raid. sudo dmraid -E -r /dev/sda fixed it and then all installer programs seemed to work fine

Installfest schedule and locations

Due to some scheduling issues we have had to move the installfest on certain dates for the next few months. Please check back as the schedule may change at any time
September 20 2014 Gangplank, 260 South Arizona Avenue, Chandler, AZ 85225, USA , Arizona
October 04 2014 University of Advancing Technology: 2625 W Baseline,Tempe, AZ 85283
October 18 2014 Gangplank, LLC, 260 S Arizona Ave, Chandler, AZ, United States

All events are 10 am to 4 pm

*Who:* Anyone interested in Linux. *Who* Anyone interested in Linux is welcome. We can just chat or we can install almost any versionof Linux on your computer (you must bring everything needed to use your computer (e.g. monitor, keyboard, cords, etc). *What:* We can install most Linux distributions. We are also happy to fix problems, answer questions or simply discuss free software. We meet the 1st and 3rd Saturday of every month from 10 AM until 4 PM unless we cancel or reschedule due to aholiday. Please see the calendar at https://www.azloco.org/?q=node/28 for more information We provide power and network connectivity as well as install media. *What to bring:* You need to bring everything required to use your computer.

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