installed U12.04 on an old partition, my /home partition got wiped

[Peter Teuben]

Installing U12.04 on an old partition...

so, i've done this kind of thing numerous times. I keep a triple boot 
laptop,
and share /boot between different distros. Also keep /home on a big
partition. So obviously I know very well to only let the new system to be
the one that is reformatted and leave /boot and /home alone. Did that
again this time. But.... found /home nicely empty.

The only thing I can imagine is that I was asked what partition type /home
was, and maybe I told it ext4, where it was still ext3...... but the end 
result
was that i lost it all, very sad.

Found an interesting file in /var/log/installer/partman, that may be useful
to decipher. Hope to report here later, but maybe somebody else has run
into this corner case as well. I've convinced myself it reformatted my /home
without me asking for it!

peter