DANGER!!! Problems with 10.04 installer (RAID devices *will* get corrupted)

[Grizzly]

On 21 April 2010 at 0:30, Alvin Thompson 
Enlightened me with this:-DANGER!!!  Problems with 10.04 inst

>Long story short: the only way to be safe right now is to physically 
>remove drives with important data during the install.
>
>I figured out the cause of my RAID problems, and it's a problem with 
>ubuntu's installer.  This will cost people their data if not fixed. 
>Sorry about the length of this post, but the problem takes a while to 
>explain.

<snipped>

I had the same(ish) prob without RAID, I (not wanting to lose data) turned OFF 
my main (NTFS / XP) data drives in BIOS, tried to do the install to a USB HD

Only to find that my main data drive had been over written by the failed 
install

I only mention this again to point out that not only RAID arrays are at risk