[CentOS] How to remove Microsoft soft raid?

[Robert Heller]

At Thu, 21 Jul 2011 07:24:19 -0400 CentOS mailing list <centos at centos.org> wrote:

> 
> Have a quad core workstation that was running WinXP_64 that I want to
> blow away and install CentOS 6.  C6 install process finds raid metadata
> associated with sda and sdb, and then excludes them from the rest of the
> installation process.  
> 
> There doesn't appear to be an option for disassembling the raid as part
> of the install process.  I think there should be.
> 
> Any tricks to removing/by-passing the soft raid left over from the
> previous OS?

Is this pure WinXP_64 software RAID or BIOS-assisted 'fakeraid'?  If the
latter, go into the BIOS and change its settings from 'RAID' to 'AHCI'
or other 'native' SATA mode.

The only other thought would be to use a Live CD to clobber the disks
(eg using fdisk or 'dd if=/dev/zero of=/dev/sda' or something). It might
also be possible to get to a shell process with Alt-F2 in the installer
and using fdisk, etc. to clobber the disks -- do this *before* screen
where it asks about partitioning, etc.

> 
> Dave M
> 
> 
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>                                          

-- 
Robert Heller             -- 978-544-6933 / heller at deepsoft.com
Deepwoods Software        -- http://www.deepsoft.com/
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