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Date:      Mon, 6 Jul 2009 11:41:40 +0300
From:      Dan Naumov <dan.naumov@gmail.com>
To:        Dimitry Andric <dimitry@andric.com>
Cc:        Ruben de Groot <mail25@bzerk.org>, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: What is /boot/kernel/*.symbols?
Message-ID:  <cf9b1ee00907060141w110e36c3p5922d31b3acd1f62@mail.gmail.com>
In-Reply-To: <4A51B721.5020505@andric.com>
References:  <20090703142528.GA11039@hugo10.ka.punkt.de> <4A4E174A.1050207@andric.com> <20090703144121.GC11039@hugo10.ka.punkt.de> <4A4E1E24.3020303@andric.com> <20090703152150.GE11039@hugo10.ka.punkt.de> <20090705003834.12211k8697td2o74@webmail.private.lan> <20090706073941.GA78371@ei.bzerk.org> <20090706074256.GD6306@hugo10.ka.punkt.de> <4A51B721.5020505@andric.com>

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On Mon, Jul 6, 2009 at 11:34 AM, Dimitry Andric<dimitry@andric.com> wrote:
> On 2009-07-06 09:42, Patrick M. Hausen wrote:
>>> #define ROOT_DEFAULT_SIZE =A0 =A0 =A0 =A0 =A0 =A0 =A0 512
>>
>> IMHO it is not. If you install a kernel with *.symbols present
>> twice (i.e. kernel and kernel.old contain symbol files), your
>> root partition will be > 95% full.
>
> I'm not sure how you arrive at this number; even with -CURRENT (on i386,
> with all debug symbols), I could store about 4 complete kernels on such
> a filesystem:
>
> $ du -hs /boot/kernel*
> 122M =A0 =A0/boot/kernel
> 122M =A0 =A0/boot/kernel.20090629a
> 121M =A0 =A0/boot/kernel.20090630a
> 122M =A0 =A0/boot/kernel.20090702a
> 121M =A0 =A0/boot/kernel.20090703a
>
> All other files on my root filesystem use up an additional ~25 MiB, so
> in practice, it would be limited to 3 kernels, with more than enough
> breathing room.

atom# uname -a
FreeBSD atom.localdomain 7.2-RELEASE-p1 FreeBSD 7.2-RELEASE-p1 #0: Tue
Jun  9 18:02:21 UTC 2009
root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

atom# du -hs /boot/kernel*
205M    /boot/kernel


This is on a stock 7.2-release/amd64 updated to -p1 with
freebsd-update, 2 kernels is the maximum that would fit into the
default 512mb partition size for /, a bit too tight for my liking.


- Sincerely,
Dan Naumov



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