freebsd-update - removing sources of a 7.2 system

[Olivier Mueller]

Repost... Any idea, other should I really have a look at the source code
of freebsd-update? :)   Thanks & regards, O. 

On Thu, 2010-04-22 at 18:43 +0200, Olivier Mueller wrote:
> Two little questions about freebsd-update "best-practices": 
> 
> 1) These are the output when I start a "freebsd-update upgrade" on two
> different systems. On the first one, everything ok, on the second, the
> sources are still there and I would like to get rid of them: 
> 
> sys1: 
> The following components of FreeBSD seem to be installed:
> kernel/generic world/base world/dict world/doc world/games world/info
> world/manpages
> 
> sys2:
> The following components of FreeBSD seem to be installed:
> kernel/generic src/base src/bin src/cddl src/contrib src/crypto src/etc
> src/games src/gnu src/include src/krb5 src/lib src/libexec src/release
> src/rescue src/sbin src/secure src/share src/sys src/tools src/ubin
> src/usbin world/base world/dict world/doc world/games world/info
> world/lib32 world/manpages world/proflibs
> 
> 
> 
> Just to be sure:  is this correct that I can just remove these 2
> directories completely: 
> -  /usr/src    (500MB)
> -  /usr/obj/usr/src  (1304MB)
> and that it would solve my "problem" ?  Or is there a list of "installed
> components" somewhere that should be updated too?  (I tried by renaming
> these 2 dirs and running freebsd-update again and it seemed to work, but
> I've not found that in the documentations I checked)
> 
> 
> 2)  directory  "/var/db/freebsd-update/files" is getting large after a
> few upgrades (800M-1.2GB):  can it be deleted after an upgrade,  once I
> am sure a rollback will not be necessary for example?   Or should rather
> the while directory /var/db/freebsd-update be trashed ?