Converting ext3 to ext4 resulting in loss of data?

[Ric Moore]

On Tue, 2010-08-10 at 21:52 +0800, Fajar Priyanto wrote:
> On Tue, Aug 10, 2010 at 9:45 PM, Goh Lip <g.lip at gmx.com> wrote:
> > Did you convert using these methods?
> > http://ubuntuforums.org/showthread.php?t=1147968
> > http://forums.gentoo.org/viewtopic-t-800318-start-0.html
> > http://biete.com/2009/06/linux/convert-root-ext3-to-ext4-on-ubuntu-karmic/
> >
> > or, most probably, when installing Lucid?
> 
> Yes it was during the installation.
> I thought the installation would have been able to do the "conversion"
> from ext3 to ext4.
> I guess there should be a warning. I found several people with similar
> case like mine.
> I'm just hoping the photorec can find as many files as possible.

Once you click on the re-format the partition option, you're in charge.
It's assumed that you know that re-formating pretty much wipes the
partition clean. Please understand that the Linux OS will do whatever
you tell it to do. 

I toasted a really decent 15" multisync monitor, back when they cost a
small fortune, by telling a program to set it to a parameter that I had
no business telling it to do, from my own ignorance. I blew the flyback
before I could hit the power button. Be careful, be very careful and ask
lots of questions before you hit the red-button. :) Ric