Removing LVM

[Mark Fraser]

I'm having a few problems that I hope you'll be able to help me with. First
I'll explain what I'm trying to do.

I have 2 drives in my computer an 80GB and a 200GB. At the moment
everything is on the smaller drive which is using LVM. What I want to do is
to have /home on the larger drive and to remove LVM and repartition the
smaller one so that I can try out other distros and to put F7 on when it
comes out.

At my local Linux user group we tried to do a backup of the small drive to
the larger one in a tar so that I could then repartition the drive. This
failed because it tried to backup /sys, /proc and other folders that
couldn't be backed up. I have tried umounting /proc, but get told that
Couldn't umount /proc Inappropriate ioctl for device.

So, my questions:
1) how can I backup all my data to the larger drive
2) remove LVM