Do you allocate all disk space to logical volumes during installation?

[Kenneth Holter]

On 9/23/08, mark <m.roth2006 at rcn.com> wrote:
>
> Joey Prestia wrote:
> > Erling Ringen Elvsrud wrote:
> >> Hello list,
> >
> >> It is often hard to know how much space is needed for
> >> different mount points. Increasing the size of a filesystem is commonly
> >> described as a safer operation than reducing the size. Do you think
> >> saving space (not absolutely needed) for later is a good idea / common
> practice?
> >
> > It is a very good practice to use LVM partitions for any that you
> > believe may need to grow later down the road. And we never partition the
> > whole disk. You may never need it. But if you do need that space later
> > it is invaluable to not have to shut down a machine and add a drive. I
> > have found It to be very handy to have the foresight to do this and used
> > it many times to be advantageous.
>
> Yup. As I said in my article "Upgrading Linux" in the July '07 SysAdmin
> (now
> ceased publication, dammit), I recommend LVM for /usr, /home, and *very*
> much
> for /opt (since so much software these days wants to be there). I would
> *never*
> use LVM for /boot or /
>
> Size: 100M or so for /boot; 4G-8G for /, 20G for /usr, 4G for /var, ditto
> for
> /tmp, and lots and lots for /opt and /home.
>
>        mark
>
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What's the reason for not using LVM for / and /boot?