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Date:      Wed, 22 Feb 2012 12:32:56 -0600
From:      Dan Nelson <dnelson@allantgroup.com>
To:        Joe Moore <joe.moore@holidaycompanies.com>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: How much space do I need on "/" for a 7.4 to 8 stable upgrade?
Message-ID:  <20120222183256.GB59682@dan.emsphone.com>
In-Reply-To: <7DC5CF25DDD70D4A845DDC2F96E116B2A0E467@hcexch01.holidaycompanies.com>
References:  <7DC5CF25DDD70D4A845DDC2F96E116B2A0E467@hcexch01.holidaycompanies.com>

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In the last episode (Feb 22), Joe Moore said:
> I need to upgrade a server from 7.4 stable to 8.x stable.
> 
> I running buildworld as I write this, and plan to build a GENERIC kernel.
> 
> The root disk partition is 248 MB which was probably the auto default size
> when the server was originally built.  I remember having to do some
> scrambling during the last update to free up enough space for a new kernel
> and I really don't want that to happen again.
>
> I have 65MB of free space on "/". Is that going to be enough? I've already
> moved tftpboot to /usr, cleaned out /root, /boot/kernel.old, and /tmp.

I did a 5.5 -> 8.1 upgrade (no intermediate installs!) on a system with a
256MB root a few years ago and didn't have any problems.  As Adam said, get
rid of any /boot/*/*.symbol files.  With symbols, a kernel directory could
be 50-70 MB, but without, you're looking at only 5-15 MB.  My root is only
90MB used, so there should be quite a bit of space you should be able to
free up still.  Try deleting web browser cache dirs or ccache trees in
~root.
 
> What else could I clean out if I need more space? I'm thinking some
> executables in /rescue.  "ls -l" shows most of them being 4MB each but
> that can't be right.

All the files in /rescue is hardlinked to each other, so they only consume
4MB total.

-- 
	Dan Nelson
	dnelson@allantgroup.com



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