Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!think!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!rutgers!cbmvax!grr
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.dec
Subject: Re: Decnet-Ultrix
Message-ID: <9217@cbmvax.commodore.com>
Date: 5 Jan 90 01:30:52 GMT
References: <2868@decuac.DEC.COM> <1990Jan4.173203.14788@gdwest.gd.com> <4560@helios.ee.lbl.gov>
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Distribution: usa
Organization: Commodore, West Chester, PA
Lines: 40

In article <4560@helios.ee.lbl.gov> envbvs@epb2.lbl.gov (Brian V. Smith) writes:
> In article <2868@decuac.DEC.COM>, avolio@decuac.dec.com (Frederick M.
> Avolio) writes:
> < 
> < No.  The whole partition is the c partition.  Use it.
> < 
> < Fred
> 
> This is fine for a filesystem, but if you want to swap on it don't 
> you have to be careful not to overwrite the disk label at the beginning
> of the disk?

What I always do is change some partition (I use 'd') to refer to the
rest of the disk past the swap area.  This setup gives lots of flexibility -
I can use the b partition for swap or something like /usr/tmp depending
on my mood, and if I really want the whole drive then I use 'c'.

Remember then when you change the partition, the one your are changing
has to be unmounted and if you are changing 'a' you have to use 'c' or
if changing 'c' you must use 'a' else it doesn't matter.  after changing
it, you must do a newfs to actually get the benefit of the increased size.

How to:

# chpt -q /dev/rra1a
   < old info>
# bc
   < top of 'c' - bottom of 'd' or 'g' + 1 >
# chpt -pd x y /dev/rra1a
   < where 'x' is bottom of 'd' or 'g' and 'y' is size from above calc >
# chpt -q /dev/rra1a
   < verify that start / end of 'd' match bottom of 'd' or 'g' and that
     top matches top of 'c'.  Also that 'd' doesn't overlap 'a' or 'b'! >

it's easy after the first hundred or so times...

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)