Paritions to install Ubuntu

[Alan McKinnon]

On Saturday 30 September 2006 21:38, Kent Borg wrote:
> LVM: I need to wrap my head around how one lives with LVM.  I
> suspect it completely changes my ping-ponging between two
> /-partitions.  I would like to find a nice article describing
> practical living with LVM.  (Not all the stuff one *can* do,
> but what one sensibly *should* do.)

Best reference I've found so far on LVM is the gentoo docs (I 
assume you already know how to get them :-)  )

LVM is a marvellous tool, designed to solve a horrendous 
problem - physical partition sizes end up being fixed at 
install time (for all practical purposes) and it's very hard to 
change them. It can be done, but it gets to be like a Rubik 
cube or that 15-pieces kid's game. LVM gives you a *virtual* 
partition, so instead of a /dev/sda6 you get a /dev/vg/home. In 
use, the LVM acts exactly like a physical partition except that 
you can change it's size dynamically (to reduce the size you 
need to unmount first though. Not so to enlarge ext2/3 or 
reiser3). I dual boot two OSes on this notebook, both use LVM 
and it works seamlessly. Install it, use it and mostly forget 
about it till you need to change partition sizes.

The LVM snapshot is a nice extra feature, but one that you could 
easily emulate without LVM as long as you don't allocate all 
physical disk space.

alan