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

[Kenneth Holter]

I've never set up /boot in LVM, so I've never given it much thoughts on
whether it would work or not. But this makes sense, so thanks for the
information.

We usually put / in LVM, however, and never had any problems with it. But
which issues are we likely to run into if we pub / in LVM?


On 9/26/08, Mike Burger <mburger at bubbanfriends.org> wrote:
>
>
> > 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.
> >
> >
> > What's the reason for not using LVM for / and /boot?
>
> /boot is read at boot time...having /boot in LVM would mean that LVM had
> to be, somehow, loaded at boot time.  Probably better for /boot to be a
> fixed partition, rather than a logical volume within an LVM partition.
>
> As for /, I'm using LVM for /, and it works fine.
>
> --
> Mike Burger
> http://www.bubbanfriends.org
>
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