[LUNI] Partition question

[Keith T. Garner]

On Wed, Mar 06, 2002 at 08:15:30, Martin Maney said:
> On Wed, Mar 06, 2002 at 12:47:32PM -0600, Martin Maney wrote:
> > On Wed, Mar 06, 2002 at 11:39:14AM -0600, Keith T. Garner wrote:
> > > If other partitions on that disk are being used when you make that new
> > > partition you must reload.  Its one of those "the parent resource is busy"
> > > kinda things.
> > 
> > I'll have to test that later.  It just might fit, but I'm not positive.
> 
> It's what Keith said.  I must have started mkfs (with -c, to keep it
> harmlessly busy in hopes if catching it before it should do anything
> untoward) on the partition that I'd deleted to make space for the others,
> and didn't notice that it picked up that obsolete (and rather larger)
> partition's specs.  I guess it's been so long since I was doing any
> post-setup partitioning *on* *an* *active* *drive* that I've completely
> forgotten about this.
> 
> Okay, Keith, I'm buying it.  It helps that I did get the warning message on
> the retest, though I'd swear I did not get that last time.

I haven't really looked into *why* it is, but its been my experiance over
the years.  Good to have it verified :)

> Hmmm, what about LVM?  <ssh, poke, prod...>  Right, not being a low-level
> physical device partition there's no reason a logical volume should be
> subject to that silly limitation; nor does it seem to be so restricted.  I
> am really liking this LVM stuff!

Actually, I don't know how it would work in an LVM.  I would assume when
you add a new logical volume it should be instant as that has been the
case on other LVM systems that i've used.  Especially considering you're
more creating a partition on "software" then on hardware, I think it
would work.

I'd move over to an LVM on a few of my machines, if it didn't require
the headache of having to back everything up and blow it back out.
Next time I set a machine up from scratch, I guess.

Keith

-- 
   Keith T. Garner                                        kgarner at kgarner.com
   The whole problem with the world is that fools and fanatics are always so
 certain of themselves, and wiser people so full of doubts.  --Bertrand Russell