freebsd stable - Dec 2008 - sysinstall automatic partition labelling/sizing problem

Automatic labelling on 7.0 created about 360MB for my root partition on
a 8GB disk. After a buildkernel into 7.1-PRERELEASE, the root partition
was exhausted during the installkernel.

Maybe automatic labelling in sysinstall needs to allocate more than
360MB in the root (/) partition if it's going to stay big enough to
accomodate a buildkernel and installkernel from source.

/boot/kernel is ~118 MB on my system (including debugging symbols).
Default size of the root partition created by sysinstall is 512 MB, in your 
case downsized to 360 to accomodate other partitions on your 8GB disk.
Should still be enough though.  Do you have any other big files hanging
around in your root partition?

Ruben

On Wed, Dec 03, 2008 at 03:42:04PM +0900, Nathan Butcher
typed:
> Automatic labelling on 7.0 created about 360MB for my root partition on
> a 8GB disk. After a buildkernel into 7.1-PRERELEASE, the root partition
> was exhausted during the installkernel.
> 
> Maybe automatic labelling in sysinstall needs to allocate more than
> 360MB in the root (/) partition if it's going to stay big enough to
> accomodate a buildkernel and installkernel from source.
> 
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to
"freebsd-stable-unsubscribe@freebsd.org"

Might be helpful to remember that /root is on /, so if you're in the 
habit of leaving stuff in /root for doing sysadmin tasks, it can kill
/ pretty quickly...

On 2008-12-04 10:08:59AM +0100, Ruben de Groot wrote:
> 
> /boot/kernel is ~118 MB on my system (including debugging symbols).
> Default size of the root partition created by sysinstall is 512 MB, in your
> case downsized to 360 to accomodate other partitions on your 8GB disk.
> Should still be enough though.  Do you have any other big files hanging
> around in your root partition?
> 
> Ruben
> 
> On Wed, Dec 03, 2008 at 03:42:04PM +0900, Nathan Butcher typed:
> > Automatic labelling on 7.0 created about 360MB for my root partition
on
> > a 8GB disk. After a buildkernel into 7.1-PRERELEASE, the root
partition
> > was exhausted during the installkernel.
> > 
> > Maybe automatic labelling in sysinstall needs to allocate more than
> > 360MB in the root (/) partition if it's going to stay big enough
to
> > accomodate a buildkernel and installkernel from source.
> > 
> > _______________________________________________
> > freebsd-stable@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> > To unsubscribe, send any mail to
"freebsd-stable-unsubscribe@freebsd.org"
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to
"freebsd-stable-unsubscribe@freebsd.org"
-- 
==========================================================Peter C. Lai          
| Bard College at Simon's Rock
Systems Administrator        | 84 Alford Rd.
Information Technology Svcs. | Gt. Barrington, MA 01230 USA
peter AT simons-rock.edu     | (413) 528-7428
===========================================================

On 2008-Dec-03 15:42:04 +0900, Nathan Butcher <n-butcher@fusiongol.com>
wrote:
>Automatic labelling on 7.0 created about 360MB for my root partition on
>a 8GB disk. After a buildkernel into 7.1-PRERELEASE, the root partition
>was exhausted during the installkernel.
Are you running i386 or amd64?  360MB _is_ a very tight fit for amd64
but you should make it unless you have some large, unexpected files
lying around in your root partition.  As a workaround, you could
remove *.symbols from the old kernel files.
>Maybe automatic labelling in sysinstall needs to allocate more than
>360MB in the root (/) partition if it's going to stay big enough to
>accomodate a buildkernel and installkernel from source.
Looking at sysinstall, the default size is currently 512MB unless you
have less than ~20GB, when it will start scaling down.

Your options are:
1) Expand root (maybe use growfs and eat into your swap)
2) Avoid building unwanted modules via MODULES_OVERRIDE.

-- 
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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