[breezy install] LVM option?

[David Abrahams]

Is the LVM partitioning option of the Breezy installer known to
actually work?  I have read all about LVM and I understand
partitioning (having done many prior Linux installs), but I couldn't
get the LVM options to do anything sensible.  Well, that's not quite
true: I got the thing to put two physical partitions on my 30GB disk,
one a 255MB /boot partition and the remaining space allocated to /,
and two logical volumes soaking up the physical space on /, the
smaller of which got allocated to /swap.  That's the default you get
when you tell it to erase your 30GB disk and use LVM.

However, I was unable to add logical volumes or modify the volume
group: the partitioner would tell me there was no physical volume to
operate on (!)  I'm pretty sure I want more than just two top level
logical volumes.  Even though the installer does nothing smart about
that by default, everything I've read makes plausible arguments that I
ought to be separating /var, /home, /tmp, etc., from one another.

[Oh, and you can create some really unholy nonsense by going back to
"guided partitioning" and choosing the wrong option there after
telling the partitiner to erase and use LVM]

I'm starting to get the feeling that this part of the installer
doesn't really work and I should expect to have to use pvcreate,
vgcreate, etc., from the command line, in order to really manage the
LVM configuration.  But I have no idea whether this can actually work.

This is all part of my evil plan to ditch Windows because it's so
impenetrable, so one thing I really wanted was to give myself another
logical volume for a dual-boot Windows installation -- but at this
rate I may have to ditch my evil plan :(

Can anyone help?  TIA,

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com