Date: Wed, 27 Nov 2002 16:03:06 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: freebsd-questions@FreeBSD.ORG Subject: Re: increasing the size of a file system Message-ID: <20021127160306.GA35873@happy-idiot-talk.infracaninophi> In-Reply-To: <200211221834.20396.tconnolly@electrosoftsolutions.com> References: <200211221834.20396.tconnolly@electrosoftsolutions.com>
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On Fri, Nov 22, 2002 at 06:38:31PM -0700, Thomas Connolly wrote:
> Hello all. I am having a problem installing a very large program. It wants
> to extract itself to the /tmp directory but there is not enough space. I
> have a 30 Gb hard drive that is only 20% full so there is plenty of free
> space to work with. I've tried increasing the size of the file system as
> follows:
>
> umount -f /dev/ad0s1f
> growfs -s 4194304 /dev/ad0s1f
>
> I get an error similar to the following:
> file system not grown (137xxxx -> 137xxxx) [not sure of the exact values]
You can't growfs(8) a filesystem unless there's spare space in the
partition. To increase the size of the partition on a plain disk
drive usually requires a lot of fiddling about with disklabel(8) and
probably backup and restore of large chunks of the disk.
> Can someone tell me what I am doing wrong or is there another work around such
> as making the program think that /tmp is really somewhere else with more
> space?
OK. Two work-arounds.
i) Find a partition with plenty of spare space (use df(1)). Lets
assume that partition is mounted at /foo. Now create /foo/tmp
and change the permissions etc. so it can be used as a temporary
directory:
# mkdir /foo/tmp
# chown root:wheel /foo/tmp
# chmod 1777 /foo/tmp
Now set the TMPDIR environment variable to point to /foo/tmp:
# setenv TMPDIR /foo/tmp (tcsh, csh etc.)
-or-
# TMPDIR=/tmp/foo ; export TMPDIR (sh, bash etc.)
and try doing your install again. Chances are it will honour the
TMPDIR variable. If it doesn't, move aside your existing /tmp
directory and create a symlink to the new one:
# cd /
# mv tmp tmp.old
ln -s foo/tmp tmp
You should delete the link and move the old /tmp directory back
into place when you're done, as a number of programs tend to keep
unix domain sockets under /tmp, and various things will
mysteriously not work properly until you do. Either that, or
reboot.
ii) If you have plenty of swap space mount a mfs on /tmp:
# mount_mfs -o rw /dev/ad0s1b /tmp
Same caveats about unmounting after use
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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